GFI LanGuard, Add, 25-49IP, 2Y, ENG Product Manual
Below you will find brief information for LanGuard. This document provides instructions on how to install and configure GFI LanGuard, which is a patch management and network auditing solution. It enables you to easily manage and maintain end-point protection across devices within your LAN. It includes features like vulnerability assessments, network audits, and patch management to help secure your network.
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GFI Product Manual
Administrator Guide
The information and content in this document is provided for informational purposes only and is provided "as is" with no warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability, fitness for a particular purpose, and non-infringement.
GFI Software is not liable for any damages, including any consequential damages, of any kind that may result from the use of this document. The information is obtained from publicly available sources. Though reasonable effort has been made to ensure the accuracy of the data provided, GFI makes no claim, promise or guarantee about the completeness, accuracy, recency or adequacy of information and is not responsible for misprints, out-of-date information, or errors. GFI makes no warranty, express or implied, and assumes no legal liability or responsibility for the accuracy or completeness of any information contained in this document.
If you believe there are any factual errors in this document, please contact us and we will review your concerns as soon as practical.
All product and company names herein may be trademarks of their respective owners.
GFI LanGuard is copyright of GFI SOFTWARE Ltd. - 1999-2012 GFI Software Ltd. All rights reserved.
Document Version: 11.1
Last updated (month/day/year): 11/22/2012
Contents
1.2 How GFI LanGuard Agents work
1.3 How GFI LanGuard Relay Agents work
1.5.1 Terms and conventions used in this manual
2.1.1 Deploying GFI LanGuard in mixed mode
2.1.2 Deploying GFI LanGuard using Relay Agents
2.1.3 Deploying GFI LanGuard in Agent-less mode
2.2.3 Firewall Ports and Protocols
2.2.5 Supported antivirus/anti-spyware applications
2.3 Importing and Exporting Settings
2.3.1 Exporting configurations to a file
2.3.2 Importing configurations from a file
2.3.3 Importing configurations from another instance of GFI LanGuard
2.4 Upgrading from previous versions
3.1 Effective Vulnerability Assessment
3.2 Effective Patch Management
3.3 Using GFI LanGuard for asset tracking
3.4 Up to date network and software analysis
4.5.1 Configuring an Agent as a Relay
4.5.2 Configuring Relay Agent advanced options
4.5.3 Connecting computers to a Relay
5.2 Available Scanning Profiles
5.2.1 Complete/Combination Scans
5.2.2 Vulnerability Assessment
5.2.3 Network & Software Audit
5.4 Enabling security audit policies
5.5.1 Creating a scheduled scan
5.5.2 Editing scheduled scan settings
5.5.3 Configuring scheduled scan properties
5.6.1 Starting an Agent scan manually
6.1 Achieving results from the dashboard
6.4.1 Assigning attributes to a computer
6.4.2 Assigning attributes to a group
7.1 Interpreting manual scan results
7.1.2 Vulnerability Level Rating
7.1.3 Vulnerability Assessment
7.1.4 Network & Software Audit
7.2 Loading results from the database
7.3 Saving and loading XML results
8.1.2 Configuring missing updates auto-deployment
8.1.3 Configuring unauthorized applications auto-uninstall
8.1.4 Configuring auto-remediation options
8.1.5 Configuring end-user reboot and shut down options
8.1.6 Configuring auto-remediation messages
8.1.7 Configuring Agent auto-remediation
8.2.1 Manual remediation notes
8.2.2 Using the Remediation Center
8.2.3 Deploying Software Updates
8.2.4 Uninstalling Software Updates
8.2.5 Deploying Custom Software
8.2.6 Uninstalling Custom Applications
8.2.8 Using Remote Desktop Support
9.2 Monitoring Software Updates Download
9.2.1 Troubleshooting failed Software Updates
9.3 Monitoring Remediation Operations
9.3.1 Remediation Jobs sub-tab
9.3.2 Remediation Operations view
9.4 Monitoring Product Updates
10.1.2 Legal Compliance reports
10.3.1 Creating new scheduled reports
10.3.2 Configuring scheduled reports options
10.3.3 Managing scheduled reports
10.4 Customizing default reports
10.4.1 Creating custom reports
10.4.2 Customizing report logos
10.4.3 Customizing Email Report Format
11.1 Configuring Alerting Options
11.2 Configuring Database Maintenance Options
11.2.1 Using Access™ as a database backend
11.2.2 Using SQL Server® as a database backend
11.2.3 Managing saved scan results
11.2.5 Configure advanced database maintenance options
11.2.6 Configure database retention options
11.3 Configuring Program Updates
11.3.1 Configuring proxy settings
11.3.2 Configuring auto-update options
11.3.3 Installing program updates manually
12.1 Create a new Scanning Profile
12.2 Configuring Vulnerabilities
12.2.1 Enabling vulnerability scanning
12.2.2 Customizing the list of vulnerabilities to be scanned
12.2.3 Customizing vulnerability checks properties
12.2.4 Setting up vulnerability check conditions
12.3.1 Enabling/disabling missing patch detection checks
12.3.2 Customizing the list of software patches to scan
12.3.3 Searching for Bulletin Information
12.4 Configuring Network & Software Audit options
12.4.1 Configuring TCP/UDP port scanning options
12.4.2 Configuring System Information options
12.4.3 Configuring Device scanning options
12.4.4 Configuring Applications scanning options
12.5 Configuring security scanning options
13.4.1 Starting a Security Scan
13.4.2 Deploying Custom Patches
13.4.3 Enabling Auditing Policies
14.1 Creating custom scripts using VBscript
14.1.1 Adding a vulnerability check that uses a custom VBScript (.vbs)
14.2 Creating custom scripts using Python Scripting
14.3.2 Adding a vulnerability check that uses a custom shell script
15.2 Uninstalling GFI LanGuard
16 Troubleshooting and support
16.2 Using the Troubleshooter Wizard
16.5 Requesting technical support
17 Appendix 1 - Data Processed
18 Appendix 2 - Certifications
18.1 Open Vulnerability and Assessment Language (OVAL)
18.1.1 GFI LanGuardOVAL Support
18.1.2 About OVAL Compatibility
18.1.3 Submitting OVAL listing error reports
18.2 Common Vulnerabilities and Exposures (CVE)
18.2.1 About CVE Compatibility
18.2.3 Searching for CVE Entries
18.2.5 Importing and Exporting CVE Data
List of Figures
Screenshot 1: Export configurations to file
Screenshot 2: Import configurations from a file
Screenshot 4: Pre–requisite check dialog
Screenshot 5: Import and Export settings from a previous instance
Screenshot 6: End-user license agreement
Screenshot 7: Specify user details and license key
Screenshot 8: Attendant service credentials
Screenshot 9: Import and Export configurations
Screenshot 11: Launch a scan properties
Screenshot 12: Scan results summary
Screenshot 14: Add more computers - Select import type
Screenshot 15: Add more computers - Assign attributes to new computers
Screenshot 16: Agent Properties - General tab
Screenshot 17: Agent Properties - Agent Status tab
Screenshot 18: Agent Properties - Attributes tab
Screenshot 19: Agent Properties - Relays tab
Screenshot 20: Agent Settings - General tab
Screenshot 21: Agent Settings - Advanced tab
Screenshot 22: Agent Properties dialog
Screenshot 23: Set computer as relay wizard
Screenshot 24: Choose caching directory for the new Relay Agent
Screenshot 25: Settings summary step
Screenshot 26: Relay Agent properties - Advanced settings
Screenshot 27: Relay Agent advances settings dialog
Screenshot 28: Connecting to a Relay Agent
Screenshot 29: Agent Attributes
Screenshot 31: Manual scan settings
Screenshot 32: Custom target properties
Screenshot 33: Add new rule...
Screenshot 34: The audit policy administration wizard
Screenshot 35: New Scheduled Scan dialog
Screenshot 36: Scheduled scan frequency
Screenshot 37: Select scanning profile
Screenshot 38: Remote logon credentials
Screenshot 39: Scheduled scan reporting options
Screenshot 40: Scheduled scan auto–remediation options
Screenshot 41: Scheduled scan reporting options
Screenshot 42: Scheduled scan reporting options
Screenshot 43: Scheduled Scan properties
Screenshot 44: Agent Activity Recurrence
Screenshot 46: Simple filtering
Screenshot 47: Add Filter Properties
Screenshot 48: Search specific computers and groups
Screenshot 49: Assigning attributes: Single computer
Screenshot 50: Assigning attributes: Multiple computers
Screenshot 51: New attribute dialog
Screenshot 52: Actions section in the Dashboard
Screenshot 53: Dashboard Overview
Screenshot 54: Analyze results by computer
Screenshot 55: History view in the Dashboard
Screenshot 56: Vulnerabilities view in the Dashboard
Screenshot 57: Patches view in Dashboard
Screenshot 58: Ports view in Dashboard
Screenshot 59: Software view in Dashboard
Screenshot 60: Hardware view in Dashboard
Screenshot 61: System Information view in Dashboard
Screenshot 62: Results overview
Screenshot 63: Vulnerability level meter
Screenshot 64: Dashboard Vulnerability Meter
Screenshot 65: The Vulnerability Assessment node
Screenshot 66: Bulletin info dialog
Screenshot 67: The network and software audit node
Screenshot 68: System patches status
Screenshot 69: All UDP and TCP ports, found during a scan
Screenshot 70: Reloaded scan results
Screenshot 71: Patch auto–deployment
Screenshot 72: Patch Auto–Deployment Advanced Options
Screenshot 73: Configuring Patch Auto–download Properties
Screenshot 74: Patch Repository settings
Screenshot 75: Unauthorized application
Screenshot 76: Applications inventory wizard
Screenshot 77: Application auto–uninstall validation
Screenshot 78: Computer properties
Screenshot 79: General auto-remediation settings
Screenshot 80: Before deployment options
Screenshot 81: After deployment options
Screenshot 82: Advanced deployment options
Screenshot 84: Power Management
Screenshot 85: Reboot/shut down options
Screenshot 86: Remediation Center - Deploy Software Updates
Screenshot 87: Deployment options dialog
Screenshot 88: Before Deployment Message options
Screenshot 89: Customizing warning messages
Screenshot 90: Agent auto–remediation
Screenshot 91: Remediation center
Screenshot 92: Deploying software updates
Screenshot 93: Deploy software updates options
Screenshot 94: Uninstalling software updates
Screenshot 95: Uninstall software updates options
Screenshot 96: List of software to be deployed
Screenshot 97: Uninstall applications
Screenshot 98: Malware protection
Screenshot 99: Remote desktop connection
Screenshot 100: Monitoring security scans
Screenshot 101: Filter security scan dialog
Screenshot 102: Security updates download
Screenshot 103: Monitoring jobs from the Remediation jobs sub-tab
Screenshot 104: Monitoring jobs from the Remediation Operations view
Screenshot 105: Product updates activity
Screenshot 106: Report sample - Part 1
Screenshot 107: Report sample - Part 2
Screenshot 108: Report sample - Part 3
Screenshot 109: Select scheduled report template
Screenshot 110: Add or remove target domains and/or computers
Screenshot 111: Edit scheduled reports options
Screenshot 112: Monitor scheduled reports activity
Screenshot 113: Edit report settings from the report sample preview
Screenshot 114: Configuring report items
Screenshot 115: Configuring report filtering options
Screenshot 116: Configure report grouping and sorting options
Screenshot 117: Customize the report parameters
Screenshot 118: Navigate using report links
Screenshot 119: Configuring Alerting Options
Screenshot 120: The database maintenance properties dialog
Screenshot 121: SQL Server® database backend options
Screenshot 122: Database maintenance properties: Managed saved scan results tab
Screenshot 123: Database Maintenance properties: Advanced tab
Screenshot 124: Configuring proxy server settings
Screenshot 125: Configure updates at application startup
Screenshot 126: Check for Updates wizard
Screenshot 127: The Scanning Profile Editor
Screenshot 128: Enabling vulnerability scanning for the selected scanning profile
Screenshot 129: Select the vulnerability checks to be run by this scanning profile
Screenshot 130: Vulnerability properties dialog: General tab
Screenshot 131: Vulnerability conditions setup tab
Screenshot 132: Check properties wizard - Select check type
Screenshot 133: Check properties wizard - Define the object to examine
Screenshot 134: Check properties wizard - Set required conditions
Screenshot 135: Check properties wizard - Defining conditional operators
Screenshot 136: Advanced vulnerability options
Screenshot 137: Advanced vulnerability scanning dialogs
Screenshot 138: Scanning Profiles properties: Patches tab options
Screenshot 139: Select the missing patches to enumerate
Screenshot 140: Searching for bulletin information
Screenshot 141: Extended bulletin information
Screenshot 142: Scanning Profiles properties: TCP Ports tab options
Screenshot 143: Scanning Profiles properties: System Information tab options
Screenshot 144: The network devices configuration page
Screenshot 145: The applications configuration page
Screenshot 146: Scanning Profiles properties: Scanner Options tab
Screenshot 147: DNS Lookup tool
Screenshot 148: DNS Lookup tool options
Screenshot 149: Traceroute tool
Screenshot 151: Enumerate Computers tool
Screenshot 152: The Enumerate Users tool dialog
Screenshot 153: SNMP Audit tool
Screenshot 154: SNMP Walk tool
Screenshot 155: SQL Server® Audit
Screenshot 156: Add vulnerability dialog
Screenshot 157: Adding vulnerability checks - Select type of check
Screenshot 158: Adding vulnerability checks - Select VB Script file
Screenshot 159: Adding vulnerability checks - Define conditions
Screenshot 160: Add vulnerability dialog
Screenshot 161: Adding vulnerability checks - Select type of check
Screenshot 162: Adding vulnerability checks - Select Python Script file
Screenshot 163: Adding vulnerability checks - Defining conditions
Screenshot 164: Add vulnerability dialog
Screenshot 165: Adding vulnerability checks - Select type of check
Screenshot 166: Adding vulnerability checks - Select SSH file
Screenshot 167: Adding vulnerability checks - Define conditions
Screenshot 168: Local Areas Connection properties: WINS tab
Screenshot 169: Troubleshooter wizard – Information details
Screenshot 170: Troubleshooter wizard – Gathering information about known issues
Screenshot 171: Searching for CVE information
List of Tables
Table 1: GFI LanGuard Components
Table 2: Terms and conventions used in this manual
Table 3: Hardware requirements - GFI LanGuard Server
Table 4: Hardware requirements - GFI LanGuard Agent
Table 5: Hardware requirements - GFI LanGuard Relay Agent
Table 6: Supported Operating Systems
Table 7: Software requirements - Additional components
Table 10: Import override options
Table 12: Custom rules options
Table 13: Deploy Agents: Advanced Settings
Table 14: Add more computers wizard
Table 17: Relay agent advanced settings
Table 19: Relay Agent - Advanced options
Table 21: Agent group network discovery
Table 23: Complete/Combination scanning profiles
Table 24: Vulnerability assessment scanning profiles
Table 25: Network & Software Audit
Table 26: Target options when auditing
Table 27: Custom target properties
Table 28: Logon and audit options
Table 30: New scheduled scan type
Table 31: Remote logon credentials
Table 32: Power saving options
Table 33: Auto–remediation options
Table 35: Options to manage scanning profiles
Table 36: Schedule scan properties
Table 39: Software information from an audit
Table 40: View by computers information
Table 42: Vulnerability level weight scores
Table 43: Vulnerability groups
Table 44: Hardware information from an audit
Table 45: Software information from an audit
Table 46: System information from an audit
Table 47: Automatic remediation stages
Table 48: Patch Auto-Deployment Advanced Options
Table 49: Manage applicable schedule scans
Table 52: Advanced deployment options
Table 53: Advanced deployment options
Table 56: Deploy software updates options
Table 57: Uninstall software updates options
Table 58: Options available in Deploy Custom Software
Table 60: Uninstall applications
Table 62: Filter security scan dialog
Table 63: Updates download status
Table 64: Security updates download
Table 65: Troubleshooting failed Software Updates
Table 66: Available General Reports
Table 67: Available Legal Compliance Reports
Table 68: Scheduled report template options
Table 69: Target Domains & Computers options
Table 71: Alerting & Saving Settings
Table 73: Mail settings parameters
Table 74: Notifications options
Table 75: Database retention options
Table 77: Vulnerability properties dialog
Table 78: TCP Port scanning options
Table 79: Device scanning options
Table 80: Applications scanning options
Table 84: Enumerate computers options
Table 85: Insscmd command switches
Table 86: Supported variables in lnssmcd
Table 87: deploycmd command switches
Table 88: impex command switches
Table 89: Vulnerability keywords
Table 90: GFI LanGuard common Issues
Table 91: Information gathering options
1 Introduction
GFI LanGuard is a patch management and network auditing solution that enables you to easily manage and maintain end-point protection across devices within your LAN. It acts as a virtual security consultant that offers Patch Management, Vulnerability Assessment and Network Auditing support for
Windows
® and MAC computers. GFI LanGuard achieves LAN protection through:
Identification of system and network weaknesses via a comprehensive vulnerability checks database. This includes tests based on OVAL, CVE and SANS Top 20 vulnerability assessment guidelines
Auditing of all hardware and software assets on your network, enabling you to create a detailed inventory of assets. This goes as far as enumerating installed applications as well as devices connected on your network
Automatic download and remote installation of service packs and patches for Microsoft
®
Windows and MAC operating systems as well as third party products
Automatic un–installation of unauthorized software.
Topics in this chapter:
1.2 How GFI LanGuard Agents work
1.3 How GFI LanGuard Relay Agents work
1.1 How GFI LanGuard works
Figure 1: How GFI LanGuard works
GFI LanGuard 1 Introduction | 16
Upon installation, GFI LanGuard operates in two stages:
First it determines the machines that are reachable. It also tries to collect information sets from the target machines as part of its Network Discovery operations, using a subset of SMB, NETBIOS, and ICMP protocols. Supported targets include the localhost, IP, computer name, computers list,
IP range, whole domain/workgroup and/or organizational unit.
Second, once the targets are identified, GFI LanGuard performs a deep scan to enumerate all the information related to the target computer. GFI LanGuard uses a variety of techniques to gain access to this information ranging from file and folder property checks, registry checks, WMI commands, SMB commands as well as port scan checks (TCP/UDP) and more.
1.2 How GFI LanGuard Agents work
GFI LanGuard can be configured to automatically discover and deploy agents on new computers.
Agents minimize network bandwidth utilization. This is because in Agent-less mode, the GFI LanGuard server component performs audits over the network; while in Agent mode, audits are done using the scan target's resources and only a result XML file is transferred over the network.
Agents send scan data to GFI LanGuard through TCP port 1070. This port is opened by default when installing GFI LanGuard. Agents do not consume resources of the scan target's machine unless it is performing a scan or remediation operations. If an Agent becomes unresponsive for 60 days, it is automatically uninstalled from the target machine.
Note
By default, Agents auto-uninstall after 60 days. To customize the timeframe, go to
Configuration tab > Agents Management and from the right pane, click Agents Settings.
Specify the number of days in the General tab of the Agents Settings dialog.
Note
Agents can only be installed on computers running a Microsoft Windows operating system and they require approximately 25 MB of memory and 350 MB of hard disc space.
1.3 How GFI LanGuard Relay Agents work
GFI LanGuard enables you to configure any machine with a GFI LanGuard Agent installed on it, to act as a GFI LanGuard server. These Agents are called Relay Agents. Relay Agents reduce the load from the GFI LanGuard server component. Computers configured as relay agents download patches and definitions directly from the GFI LanGuard server and forward them to client computers just as if it were the server component.
1.4 GFI LanGuard Components
This section provides you with information about components that are installed by default, when you install GFI LanGuard. Once you install the product, you can manage patch management and remediation tasks from the Management Console. The Management Console is also referred to as the
Server component of GFI LanGuard, as described in the table below:
GFI LanGuard 1 Introduction | 17
Table 1: GFI LanGuard Components
Component Description
GFI LanGuard
Server
GFI LanGuard
Agents
GFI LanGuard
Update System
Also knows as the Management Console. Enables you to manage agents, perform scans, analyze results, remediate vulnerability issues and generate reports.
Enable data processing and auditing on target machines; once an audit is finished, result is sent to
GFI LanGuard.
Enables you to configure GFI LanGuard to auto–download updates released by GFI to improve functionality. These updates also include checking GFI web site for newer builds.
The background service that manages all scheduled operations, including scheduled network security scans, patch deployment and remediation operations.
GFI LanGuard
Attendant Service
GFI LanGuard
Scanning Profiles
Editor
GFI LanGuard
Command Line
Tools
This editor enables you to create new and modify existing scanning profiles.
Enables you to launch network vulnerability scans and patch deployment sessions as well as importing and exporting profiles and vulnerabilities without loading up the GFI LanGuard management console.
1.5 About this guide
The aim of this Administrator Guide is to help System Administrators install, configure and run GFI
LanGuard with minimum effort.
1.5.1 Terms and conventions used in this manual
Table 2: Terms and conventions used in this manual
Term Description
Additional information and references essential for the operation of GFI LanGuard.
Important notifications and cautions regarding potential issues that are commonly encountered.
> Step by step navigational instructions to access a specific function.
Bold text Items to select such as nodes, menu options or command buttons.
Italics text Parameters and values that you must replace with the applicable value, such as custom paths and file names.
Code Indicates text values to key in, such as commands and addresses.
GFI LanGuard 1 Introduction | 18
2 Installing GFI LanGuard
This chapter guides you in selecting the most appropriate deployment solution that caters to your requirements as well as provides you with information about how to successfully deploy a fully functional instance of GFI LanGuard.
Topics in this chapter:
2.3 Importing and Exporting Settings
2.4 Upgrading from previous versions
2.1 Deployment scenarios
GFI LanGuard can be installed on any machine which meets the minimum system requirements. Use the information in this section to determine whether you want to monitor a pool of Agent-less, Agentbased or a mix of both, depending on the:
Number of computers and devices you want to monitor
Traffic load on your network during normal operation time.
The following sections provide you with information about different deployment scenarios supported by GFI LanGuard:
Deploying GFI LanGuard in mixed mode
Deploying GFI LanGuard using Relay Agents
Deploying GFI LanGuard in Agent-less mode
2.1.1 Deploying GFI LanGuard in mixed mode
GFI LanGuard can be configured to deploy agents automatically on newly discovered machines or on manually selected computers. Agents enable data processing and auditing to be done on target machines; once an audit is finished, the result is transferred to GFI LanGuard through an XML file.
Agent-based scans:
Have better performance because the load is distributed across client machines.
Can work on low bandwidth environments because the communication between the server and agents is reduced.
Are suitable for laptops. Computers will be scanned even if the computer is not connected to the company network.
Are more accurate than manual scans, agents can access more information on the local host.
GFI LanGuard 2 Installing GFI LanGuard | 19
The following screenshot shows how GFI LanGuard can be deployed using agents on a Local Area
Network (LAN):
Figure 2: Agent/Mixed Mode
2.1.2 Deploying GFI LanGuard using Relay Agents
Relay agents are used to reduce the load from the GFI LanGuard server. Computers configured as relay agents will download patches and definitions directly from the GFI LanGuard server and will forward them to client computers. The main advantages of using relay agents are:
Save Network Bandwidth in local or geographically distributed networks. If a relay agent is configured on each site, a patch is only downloaded once and distributed to clients
Load is removed from the GFI LanGuard server component and distributed amongst relay agents
Since computers are managed from multiple relay agents, it increases the number of devices that can be protected simultaneously.
GFI LanGuard 2 Installing GFI LanGuard | 20
In a network, computers can be grouped and each group can be assigned to a relay agent as shown below.
Figure 3: Relay Agent Mode
Note
For more information, refer to Configuring Relay Agents (page 53).
2.1.3 Deploying GFI LanGuard in Agent-less mode
Agent-less auditing is started from the GFI LanGuard management console. GFI LanGuard creates a remote session with the specified scan targets and audits them over the network. On completion, the results are imported into the results database and the remote session ends.
You can audit single computers, a range of specific computers and an entire domain/workgroup.
GFI LanGuard 2 Installing GFI LanGuard | 21
Note
Scans in Agent-less mode use the resources of the machine where GFI LanGuard is installed and utilize more network bandwidth since auditing is done remotely. When you have a large network of scan targets, this mode can drastically decrease GFI LanGuard's performance and affects network speed. In larger networks, deploy Agents/Relay
Agents to balance the load appropriately.
Figure 4: Agent-Less Mode
GFI LanGuard 2 Installing GFI LanGuard | 22
2.2 System requirements
Computers that are going to run GFI LanGuard Server/Agent/Relay Agent must meet the system requirements described below to ensure maximum and optimized performance. If you are looking for a patch management solution for 2,000 or more computers, we recommend that you contact us for pricing, as well as suggestions regarding the proper deployment and management procedure for such a solution. Refer to the following sections for information about:
Supported antivirus/anti-spyware applications
2.2.1 Hardware requirements
Ensure that the hardware requirements specified below are met, on computers running any of the following components:
GFI LanGuard Server
Computers hosting GFI LanGuard Server must meet the following hardware requirements:
Table 3: Hardware requirements - GFI LanGuard Server
Component 1 to 100 Computers 100 to 500 Computers
Processor 2 GHz Dual Core 2.8 GHz Dual Core
Physical Storage
RAM
Network bandwidth
5 GB
2 GB
1544 kbps
10 GB
4 GB
1544 kbps
500 to 3,000 Computers
3 GHz Quad Core
20 GB
8 GB
1544 kbps
GFI LanGuard Agent
Computers running a GFI LanGuard Agent must meet the following hardware requirements:
Table 4: Hardware requirements - GFI LanGuard Agent
Component
Processor
Physical Storage
RAM
Network bandwidth
Requirement
1 GHz
350 MB
25 MB
1544 kbps
GFI LanGuard Relay Agent
A computer is eligible to be configured as a Relay Agent when:
The computer is online and has good uptime
Has fast network access to computers connected to it
GFI LanGuard 2 Installing GFI LanGuard | 23
Has the required disk space to allow caching.
Computers configured as Relay Agents must meet the following hardware requirements:
Table 5: Hardware requirements - GFI LanGuard Relay Agent
Component 1 to 100 Clients
Processor
Physical Storage
2 GHz Dual Core
5 GB
RAM
Network bandwidth
2 GB
100 Mbps
100 to 500 Clients
2 GHz Dual Core
10 GB
2 GB
100 Mbps
500 to 1,000 Clients
2.8 GHz Dual Core
10 GB
4 GB
1 Gbps
2.2.2 Software requirements
GFI LanGuard components can be installed on any computer that meets the software requirements listed in this section. For more information, refer to:
Supported operating systems (32-bit/64-bit)
The following table lists operating systems that GFI LanGuard Server/Agent/Relay Agent can be installed on:
Table 6: Supported Operating Systems
Operating System GFI Lan-
Guard
GFI LanGuard
Agent
GFI LanGuard Relay
Agent
Windows
®
Server 2012
Windows
®
Server 2008 (including R2) Standard/Enterprise
Windows
®
Server 2003 Standard/Enterprise
Windows
®
8
Windows
®
7 Professional/Enterprise/Ultimate
Windows
®
Vista Business/Enterprise/Ultimate
Windows
®
XP Professional (SP2 or higher)
Windows
®
Small Business Server 2008 Standard
Windows
®
Small Business Server 2003 (SP1)
Windows
®
2000 Professional/Server/Advanced
SP4
Internet Explorer 6 SP1 or higher
Windows Installer 3.1 or higher
GFI LanGuard 2 Installing GFI LanGuard | 24
Supported database backends
The database backend is the location where GFI LanGuard stores scan and network information from network security audits and remediation operations. The database backend can be any of the following:
Microsoft
®
Access
SQL Server
®
2000 or later
MSDE/SQL Server Express
® edition.
Target computer components
The following table provides you with information about components that are required to be installed/enabled on computers to be scanned remotely by GFI LanGuard:
Table 7: Software requirements - Additional components
Component
Secure Shell (SSH)
Description
Required for UNIX based scan targets. Commonly included as part of all major
Unix/Linux distributions.
Windows Management Instrumentation (WMI)
File and Printer Sharing
Remote Registry
Required to scan Windows-based scan targets. Included in all Windows 2000 or newer operating systems.
Required to enumerate and collect information about scan targets.
Required for GFI LanGuard to run a temporary service for scanning a remote target.
Additional GFI LanGuard Server components
The following additional component is required on the computer where the GFI LanGuard Server component is installed:
Microsoft .NET
®
Framework 3.5.
2.2.3 Firewall Ports and Protocols
This section provides you with information about the required firewall ports and protocols settings for:
GFI LanGuard Server and Relay Agents
GFI LanGuard Agent and Agent-less computers
GFI LanGuard and Relay Agents
Configure your firewall to allow Inbound connections on TCP port 1070, on computers running:
GFI LanGuard
Relay Agents
This port is automatically used when GFI LanGuard is installed, and handles all inbound communication between the server component and the monitored computers. If GFI LanGuard detects that port 1070 is already in use by another application, it automatically searches for an available port in the range of 1070-1170.
To manually configure the communication port:
1. Launch GFI LanGuard.
2. Click Configuration tab > Manage Agents.
GFI LanGuard 2 Installing GFI LanGuard | 25
3. From the right pane, click Agents Settings.
4. From the Agents Settings dialog, specify the communication port in the TCP port text box.
5. Click OK.
GFI LanGuard Agent and Agent-less computers
GFI LanGuard communicates with managed computers (Agents and Agent-less), using the ports and protocols below. The firewall on managed computers needs to be configured to allow Inbound requests on ports:
Table 8: Ports and Protocols
TCP Ports Protocol
22
135
SSH
DCOM
137
138
139
161
445
NetBIOS
NetBIOS
NetBIOS
SNMP
SMB
Description
Auditing Linux systems.
Dynamically assigned port.
Computer discovery and resource sharing.
Computer discovery and resource sharing.
Computer discovery and resource sharing.
Computer discovery.
Used while:
Auditing computers
Agent management
Patch deployment.
2.2.4 Gateway permissions
To download definition and security updates, GFI LanGuard connects to GFI, Microsoft and Third-
Party update servers via HTTP. Ensure that the firewall settings of the machine where GFI LanGuard is installed, allows connections to:
*software.gfi.com/lnsupdate/
*.download.microsoft.com
*.windowsupdate.com
*.update.microsoft.com
All update servers of Third-Party Vendors supported by GFI LanGuard.
GFI LanGuard 2 Installing GFI LanGuard | 26
Note
For more information, refer to:
Supported Third-Party applications: http://go.gfi.com/?pageid=LAN_PatchMng
Supported application bulletins: http://go.gfi.com/?pageid=3p_fullreport
Supported Microsoft applications: http://go.gfi.com/?pageid=ms_app_fullreport
Supported Microsoft bulletin: http://go.gfi.com/?pageid-ms_fullreport
2.2.5 Supported antivirus/anti-spyware applications
GFI LanGuard, detects outdated definition files for a number of Anti–virus and Anti–spyware software.
For a full list of supported Anti–virus and Anti–spyware software, refer to: http://go.gfi.com/?pageid=security_app_fullreport
2.3 Importing and Exporting Settings
GFI LanGuard enables you to import and export settings. Settings that can be Imported/Exported include:
Scanning Profiles
Vulnerability Assessment
Ports (TCP/UDP)
Results Filtering Reports
Auto–Remediate Settings (Auto–Uninstall and Patch settings)
Options (Database Backend, Alerting, Schedule scan and Internal Settings).
The following sections contain information about:
Exporting configurations to a file
Importing configurations from a file
Importing configurations from another instance of GFI LanGuard
2.3.1 Exporting configurations to a file
To export the configurations:
1. Launch GFI LanGuard.
2. Click the GFI LanGuard button > File > Import and Export Configurations…
3. Select Export the desired configuration to a file and click Next.
4. Specify the path were to save the exported configuration, and click Next.
GFI LanGuard 2 Installing GFI LanGuard | 27
Screenshot 1: Export configurations to file
5. Wait for the configuration tree to load and select the configurations to export. Click Next to start export.
6. A notify dialog will confirm that exporting is completed.
7. Click OK to finish.
2.3.2 Importing configurations from a file
To import saves configurations:
1. Launch GFI LanGuard.
2. Click the GFI LanGuard button > File > Import and Export Configurations…
3. Select Import the desired configuration from a file and click Next.
4. Specify the path from where to load configuration, and click Next.
5. Wait for the configuration tree to load and select the configurations to import. Click Next to start import.
GFI LanGuard 2 Installing GFI LanGuard | 28
Screenshot 2: Import configurations from a file
6. Confirm the override dialog box; by clicking, Yes or No as required.
7. A notify dialog will confirm that exporting is completed
8. Click OK to finish.
2.3.3 Importing configurations from another instance of GFI LanGuard
1. Launch GFI LanGuard.
2. Click the GFI LanGuard button > File > Import and Export Configurations… to launch the Import
and Export Configurations wizard.
3. Select Import the configuration from another instance and click Next.
4. Click Browse to select the GFI LanGuard installation folder. The default location is <Local
Disk>\Program Files\GFI\ LanGuard <Version> . Click Next.
GFI LanGuard 2 Installing GFI LanGuard | 29
Screenshot 3: Import setting
5. Select which settings you want to import and click Next.
6. While importing, GFI LanGuard will ask you whether you want to override or keep your settings.
Select one of the following options:
Table 9: Override options
Option
Yes
No
Auto Rename
Description
Override the current setting with the imported setting.
Keep the current setting and ignore the imported setting.
Rename the imported settings and keep the current settings.
7. Click OK when the import is ready.
2.4 Upgrading from previous versions
GFI LanGuard retains all settings and result information from any previous version of GFI LanGuard.
This enables you to:
Install GFI LanGuard without uninstalling the previous version.
Import settings to GFI LanGuard from other instances.
Deploy agents on the same machines where you have a previous version of GFI LanGuard installed.
Note
Software upgrades from versions older than GFI LanGuard 9 cannot be performed.
GFI LanGuard 2 Installing GFI LanGuard | 30
Note
License keys of earlier versions of GFI LanGuard are not compatible and must be upgraded to run GFI LanGuard.
To upgrade to a newer version:
1. Logon using administrator credentials on the machine where you wish to install GFI LanGuard.
2. Launch GFI LanGuard installation.
Screenshot 4: Pre–requisite check dialog
3. The pre–requisite check dialog shows an overview of the status of the components required by GFI
LanGuard to operate. Click Install to start the installation.
4. Follow the onscreen instructions to complete the upgrade.
GFI LanGuard 2 Installing GFI LanGuard | 31
Screenshot 5: Import and Export settings from a previous instance
5. Once GFI LanGuard is installed, it detects the previous installation and automatically launches the
Import and Export Configuration Wizard. This enables you to export various configurations from the previous version and import them into the new one.
6. Select the configurations to import and click Next to finalize the import process.
2.5 New installation
1. Logon using administrator credentials on the machine where GFI LanGuard will be installed.
2. Launch GFI LanGuard setup.
3. Click Install in the pre–requisite check window to download and install any missing required components.
4. In the GFI LanGuard welcome screen, click Next.
GFI LanGuard 2 Installing GFI LanGuard | 32
Screenshot 6: End-user license agreement
5. Read the licensing agreement carefully. To proceed with the installation, select I accept the terms
in the License Agreement and click Next.
Screenshot 7: Specify user details and license key
6. Specify user details and enter license key. Click Next.
GFI LanGuard 2 Installing GFI LanGuard | 33
Screenshot 8: Attendant service credentials
7. Key in the administrator credentials and password. This will be used by the service under which scheduled operations will operate. Click Next to continue setup.
8. Click Install to install GFI LanGuard in the default location or click Browse to change path.
9. Click Finish to finalize installation.
When launched for the first time, GFI LanGuard automatically enables auditing on the local computer and scans the local computer for vulnerabilities. On completion, the GFI LanGuard Home page displays the vulnerability result.
Note
Note
An Internet connection is required to download missing components.
Note
If the credentials keyed in are invalid, a message stating that this option can be skipped is displayed. It is highly recommended to provide a valid username and password and not to skip this option
GFI LanGuard 2 Installing GFI LanGuard | 34
2.6 Post install actions
GFI LanGuard can be installed on a machine with an older version of GFI LanGuard without uninstalling it. This enables you to retain configuration settings and reuse them in the new version.
To import the settings from the earlier version:
1. Launch the GFI LanGuard management console from Start > Programs > GFI LanGuard 2012 > GFI
LanGuard 2012.
2. Click the GFI LanGuard button > File > Import and Export Configurations… to launch the Import
and Export Configurations wizard.
Screenshot 9: Import and Export configurations
3. Select Import the configuration from another instance and click Next.
4. Click Browse to select the GFI LanGuard installation folder. The default location is:
64-bit machines (x64) - <Local Disk>\Program Files (x86)\GFI\ LanGuard <Version>
32-bit machines (x86) - <Local Disk>\Program Files\GFI\ LanGuard <Version>
5. Click Next.
6. Select the settings to import and click Next.
7. While importing, GFI LanGuard asks to override or keep existing settings. Select:
GFI LanGuard 2 Installing GFI LanGuard | 35
Table 10: Import override options
Option Description
Yes
No
Auto Rename
Override current setting with imported setting.
Keep current setting and ignore imported setting.
Rename imported settings and keep the current settings.
8. Click OK when complete.
2.7 Testing the installation
Once GFI LanGuard is installed, test your installation by running a local scan to ensure it installed successfully.
1. Launch GFI LanGuard.
Screenshot 10: Launch a scan
2. From GFI LanGuard home page, click Launch a Scan.
Screenshot 11: Launch a scan properties
GFI LanGuard 2 Installing GFI LanGuard | 36
3. From Scan Target drop–down menu, select localhost.
4. From Profile drop–down menu, select Full Scan.
5. Click Scan to start the scan on the local computer.
6. The scan progress is displayed in the Scan tab.
Screenshot 12: Scan results summary
7. On completion, the Progress section will display an overview of the scan result.
GFI LanGuard 2 Installing GFI LanGuard | 37
3 Achieving Results
This chapter provides you with step by step instructions about how to strengthen your network's security and integrity using GFI LanGuard. This chapter helps you achieve positive patch management, vulnerability management and legal compliance results, while ensuring that your network is protected using the most up-to-date vulnerability detection methods and techniques.
Topics in this chapter:
3.1 Effective Vulnerability Assessment
3.2 Effective Patch Management
3.3 Using GFI LanGuard for asset tracking
3.4 Up to date network and software analysis
3.1 Effective Vulnerability Assessment
For an effective vulnerability management strategy follow the steps described below:
1. Keep GFI LanGuard up to date.
Make sure that the machine where GFI LanGuard is installed has Internet access. GFI LanGuard performs daily checks for updated information.
If a proxy server is used, refer to
Configure Proxy Settings .
If Internet access is not available on the machine where GFI LanGuard is installed, refer to
Installing program updates manually
.
2. Perform security audits on a regular basis.
Agent Scheduled Scans
Manual Scans
Scheduled Scans
3. Deploy missing security updates and remove unauthorized applications.
Configure Agents Auto-Remediation
Configure Automatic Remediation
Deploying Security Patches and Service Packs
Uninstalling Software Patches and Service Packs
GFI LanGuard 3 Achieving Results | 38
4. Investigate and remediate other security issues.
Deploying Custom Software
Malware Protection Actions
Uninstalling Custom Applications
Using Remote Support
5. Check network security status.
Use the Dashboard to monitor and view the status of your network. To learn more about the Dashboard, refer to
Using the Dashboard
3.2 Effective Patch Management
GFI LanGuard enables you to manage patch deployment on your network.
GFI LanGuard can support patch updates for the following:
Windows
®
operating systems
Microsoft
®
applications
Most commonly used third party applications (Adobe products, Java runtimes and web browsers)
MAC operating systems
1. Use the Dashboard to view missing patches:
Patches View
2. Customize the patches scanning profile:
Configuring Patches
3. Remediate vulnerabilities related to missing patches:
Deploying Security Patches and Service Packs
Uninstalling Software Patches and Service Packs
GFI LanGuard 3 Achieving Results | 39
3.3 Using GFI LanGuard for asset tracking
Unmanaged or forgotten devices are a security risk. Perform the following steps to track unmanaged and forgotten devices:
1. Automatically discover new devices in your network
GFI LanGuard automatically detects new computers on your network:
Enumerate Computers
Network discovery
2. Deploy agents on new discovered computers
Deploying Agents
Deploy Agents Manually
Agent Properties
Agents Settings
3. Use the Dashboard to view vulnerabilities related to the new computers
Overview
Computers View
Vulnerabilities View
Software View
Hardware View
System Information View
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3.4 Up to date network and software analysis
Network analysis enables you to learn more what is happening in your network because it detects the configurations and applications that are posing a security risk on your network. Such issues can be identified using the following functions:
GFI LanGuard views and tools
Software View
- Get a detailed view of all the applications installed in the network.
Hardware View
- Check the hardware inventory of the network.
System Information
- View security sensitive details about the systems present in the network.
History
- Get a list of security sensitive changes that happened in the network
Software Audit - Generate a comprehensive report about the applications installed in the network.
Remediate issues
Remediate Vulnerabilities
Configure Unauthorized applications Auto-Uninstall
Deploying Custom Software
Uninstalling Custom Applications
Using Remote Support
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3.5 Compliance with PCI DSS
Be fully compliant with PCI DSS, the strict security standards drawn up by the world’s major credit card companies. In providing complete vulnerability management coupled with extensive reporting,
GFI LanGuard is an essential solution to assist with your PCI compliance program. To learn more about how to be compliant with PCI DSSuse the following links:
Registration form for PCI DSS Compliance and GFI Software Products.
http://go.gfi.com/?pageid=PCIDSS_Compliance_Whitepaper
Best practices
Perform regular vulnerability assessments. Refer to
.
Remediate vulnerabilities and deploy missing patches. Refer to
.
Generate reports and view your infrastructure status. Refer to
Ensure that antivirus and antispyware software is installed and running on target computers. To achieve this, run a scan on your targets using the Software Audit scanning
profile, from the Network & Software Audit group. For more information, refer to
Available Scanning Profiles (page 64).
Other GFI products that can help you achieve compliance
GFI VIPRE – antivirus, antispyware and personal firewall solution
GFI EventsManager – log management solution
GFI EndPointSecurity – device blocking solution
GFI LanGuard 3 Achieving Results | 42
4 Managing Agents
GFI LanGuard can be configured to deploy agents automatically on newly discovered machines or manually, on selected computers. Agents enable faster audits and drastically reduce network bandwidth utilization. When using Agents, audits are performed using the scan target's resource power. Once an audit is finished, the results are transferred to GFI LanGuard in an XML file.
Topics in this chapter:
4.1 Deploying Agents
To deploy GFI LanGuard Agents on network computers:
1. Launch GFI LanGuard.
2. From the Home menu, select Manage Agents. Alternatively, click Configuration tab > Agents
Management.
GFI LanGuard 4 Managing Agents | 43
Screenshot 13: Manage agents
3. From Common Tasks, click Deploy Agents to select the target scan computers and click Next.
Select one of the options described below:
Table 11: Target selection
Option Description
Local
Domain
Deploy agents on all reachable computers within the same workgroup / domain where GFI LanGuard is installed. No further configuration is required in Define target step.
Custom Deploy agents on specific computers or group of computers. Add new rules to search or specify target scan computers.
4. If Custom option is selected, click Add new rule and select the Rule type described below:
Table 12: Custom rules options
Rule type Description
Computer name is
Domain name is
Manually enter a computer name or import the names from a saved text (.txt) file. Click Select and manually select computers from the list, or click Import and specify the text file location.
Select domains from the list of reachable domains.
Organization unit is
Select computers from one or more reachable organization units. Use the following options:
Retrieve – Specify the user name and password to retrieve the list
Refresh – Refresh the list of domains and Organization Units
Add – Manually add an Organization Unit.
Repeat step 4 for each rule. Once completed, click OK.
5. From Deploy Agents dialog, click Next.
6. (Optional) Select Authenticate using checkbox to specify alternate credentials.
GFI LanGuard 4 Managing Agents | 44
7. (Optional) Click Advanced Settings, and configure the settings in the following tabs:
Table 13: Deploy Agents: Advanced Settings
Tab
General
Description
Configure the schedule for when GFI LanGuard automatically scans for new machines in the network perimeter where agents are enabled.
Audit Schedule
Configure how often the agent audits the host computer (where the agent is installed). Select the recurrence pattern, the time the audit will start and the scan profile to use.
Auto remediation
Configure GFI LanGuard to automatically download and install missing patches and service packs.
8. Click Next and Finish to complete agent deployment.
4.2 Deploy Agents manually
To deploy agents manually:
1. Launch GFI LanGuard and select Dashboard.
2. From Common Tasks, select Add more computers.
Screenshot 14: Add more computers - Select import type
3. From the Add more computers wizard, select one of the following options:
Table 14: Add more computers wizard
Option Description
Add computers from the network
Select domains, organizational units and computers from the list. Use the Add domain to add a new domain to the list of computers.
GFI LanGuard 4 Managing Agents | 45
Option
Add computers from a text file
Add computers manually
Click Next.
Description
Import computer list from text file. Click Browse and locate the text file containing the list of computers.
Manually create a list of computers. Use the Add and Remove buttons to add and remove computers from the list. Use the Import and Export buttons to import and export the list from\to a text file.
Screenshot 15: Add more computers - Assign attributes to new computers
4. Custom attributes can be assigned to specific computers to ease grouping and filtering. From the
Assign attributes wizard, configure the following:
Table 15: Attributes settings
Option
Skip attributes assignment
Description
No attributes are added to the computers list.
Assign custom attributes
Assign attributes to the list of computers. Click the Add button and specify the new attribute name and value.
Note
When importing a list of computers from a text file, GFI LanGuard automatically assigns the file name as an attribute (File) to the imported list.
5. Click Finish.
GFI LanGuard 4 Managing Agents | 46
Note
If the selected computers have different login credentials from the GFI LanGuard machine, GFI LanGuard launches a dialog that enables you to specify valid credentials.
6. Once the computers are added to the list, click Close.
7. From the computer tree, right-click the newly added computers and select the computer where to deploy the agent and from the Agent Status click Deploy Agent.
8. Configure the Agent properties. For more information, refer to Agent properties (page 47).
4.3 Agent properties
To modify agent properties:
1. Click Configuration tab > Agents Management.
2. From the right pane, right–click an agent and select Properties.
Note
The Properties dialog can also be accessed from the computer tree within the
Dashboard. Right-click a computer or a group and select Properties.
GFI LanGuard 4 Managing Agents | 47
Screenshot 16: Agent Properties - General tab
3.(Optional) From General tab, specify the name, type and authentication method for the selected agent.
GFI LanGuard 4 Managing Agents | 48
Screenshot 17: Agent Properties - Agent Status tab
4. From Agent Status tab, enable/disable agent deployment by clicking Deploy agent or Disallow
agent installation.
5. Click Change scan schedule… to configure the selected agent's scan schedule.
6. From Scanning profile drop-down menu, select the active scan profile.
7. From Auto remediation settings, click Change settings… to enable/disable agent auto–
remediation. For more information, refer to Configuring auto-remediation options (page 125).
GFI LanGuard 4 Managing Agents | 49
Screenshot 18: Agent Properties - Attributes tab
8. Click Attributes tab to manage the attributes assigned to the selected computer. Use the Add,
Edit and Remove buttons to manage attributes.
GFI LanGuard 4 Managing Agents | 50
Screenshot 19: Agent Properties - Relays tab
9. Click Relays tab to configure agent relays. Relays enable computers other than the one hosting GFI
LanGuard to act as GFI LanGuard server. This helps you load-balance traffic directed to that machine and optimize network scanning performance.
10. Configure the options described below:
Table 16: Agent relay options
Option Description
Set as relay
Remove relay
Set the selected computer as a relay agent. The selected computer will send product updates and patches to other agents to reduce the load from the GFI LanGuard machine. Click Set as relay... and follow the configuration wizard.
Remove the relay agent role from the selected computer. Click Remove relay... and follow the configuration wizard.
The selected computer will download product updates and patches from the GFI LanGuard server.
Connect directly to GFI
LanGuard server
Use relay agent The selected computer will use a relay agent to download product updates and patches. Select the relay agent to use from the drop down list.
11. (Optional) Click Advanced Settings and configure the following options:
Table 17: Relay agent advanced settings
Option
Caching directory
Description
All patches and updates are stored in this location before installation on the client computer.
Port where to serve The port used by the relay agent to serve requests.
GFI LanGuard 4 Managing Agents | 51
Option
Address where to server
12. Click OK twice.
Description
The address used by client computers to connect to the relay agent (By default the DNS host name is used).
4.4 Agents settings
To configure additional agents’ settings:
1. From Configuration tab, select Agents Management.
2. Click Agents Settings.
Screenshot 20: Agent Settings - General tab
3. Configure the options described below:
Table 18: Agents settings
Option Description
Auto uninstall
Agents report using
Set the number of days after which GFI LanGuard Agents automatically uninstall themselves if the host computer is unresponsive for the set period of days.
Configure the port and IP address used by agents to communicate and report status to GFI LanGuard. When
GFI LanGuard machine has multiple IP addresses and Default setting is selected, GFI LanGuard automatically selects the IP address to use.
GFI LanGuard 4 Managing Agents | 52
Screenshot 21: Agent Settings - Advanced tab
4. (Optional) Click Advanced tab and select Create temporary custom share. When this option is enabled and administrative shares are disabled on agent machines, GFI LanGuard creates a temporary shared folder for transferring information.
5. Click OK to save and close dialog.
WARNING
Communication on TCP port 1070 must be enabled in Windows firewall for GFI
LanGuard Agents to send data to GFI LanGuard.
4.5 Configuring Relay Agents
In larger networks you may experience some performance degradation due to the number of scan targets and the volume of data transferred to the GFI LanGuard server component. This results in slower scan-speed and retrieval of scan data.
To help you avoid performance issues and apply load balancing techniques, GFI LanGuard enables you to configure Agents to act as a relay of the server. Agents that are configured as Relay Agents download patches and definitions directly from GFI LanGuard server and forward them to client computers (which can be Agent-based and Agent-less computers). The main advantages of using Relay
Agents are:
GFI LanGuard 4 Managing Agents | 53
Reduced bandwidth consumption in local or geographically distributed networks. If a Relay Agent is configured on each site, a patch is only downloaded once and distributed to client computers
Reduced performance load from the GFI LanGuard server component and distributed amongst relay agents
Using multiple Relay Agents, increases the number of devices that can be protected simultaneously.
Relay Agents behave the same as GFI LanGuard and are able to manage security auditing and remediation operations on other scan targets connected to the relay.
Refer to the following sections for information about:
Configuring an Agent as a Relay
Configuring Relay Agent advanced options
Connecting computers to a Relay Agent
4.5.1 Configuring an Agent as a Relay
To configure an Agent to act as a Relay Agent:
Note
The machine where GFI LanGuard is installed cannot be configured as a Relay Agent.
The Relays tab from the Agent's Properties dialog is missing for the GFI LanGuard host.
1. Open GFI LanGuard.
2. Click Configuration tab > Agents Management.
3. Right-click on the Agent you want to configure and select Properties. This opens the Agent's
Properties dialog.
Note
Alternatively, right-click on an computer/group from the computer tree and select
Properties.
GFI LanGuard 4 Managing Agents | 54
Screenshot 22: Agent Properties dialog
4. From the Relays tab, click Set as relay...
GFI LanGuard 4 Managing Agents | 55
Screenshot 23: Set computer as relay wizard
5. Carefully ready the warning about resource requirements for the computer running a Relay Agent.
Click Next.
GFI LanGuard 4 Managing Agents | 56
Screenshot 24: Choose caching directory for the new Relay Agent
6. Choose the caching location for the Relay Agent. The caching directory is used by the relay to store audit and remediation information when auditing remote computers. By default, the RelayCache folder is created in C:\ProgramData\GFI\LanGuard 11\RelayCache. Click Next.
Note
Use the %AgentData% placeholder to quickly refer to the Agent's data folder.
GFI LanGuard 4 Managing Agents | 57
Screenshot 25: Settings summary step
7. Click Finish.
Note
After you click Finish, the selected Agent is configured as a Relay Agent. You can monitor this process from Dashboard > Overview > Agent status.
4.5.2 Configuring Relay Agent advanced options
To configure Relay Agent advanced options:
1. Open GFI LanGuard.
2. Click Configuration tab > Agents Management.
3. Right-click on the Agent you want to configure and select Properties. This opens the Agent's
Properties dialog.
Note
Alternatively, right-click on an computer/group from the computer tree and select
Properties.
GFI LanGuard 4 Managing Agents | 58
Screenshot 26: Relay Agent properties - Advanced settings
4. Click Relays tab > Advanced settings...
Screenshot 27: Relay Agent advances settings dialog
5. From the Relay Agent Advanced Settings dialog, configure the options described below:
GFI LanGuard 4 Managing Agents | 59
Table 19: Relay Agent - Advanced options
Option Description
Caching directory
Location where the relay agent caches information when auditing remote computers.
Address Displays the computer name that is running the relay agent. Click Default to restore the field to its original value.
TCP port Communication port used by the relay agent to communicate with GFI LanGuard server. Port 1070 is assigned by default and is automatically changed if GFI LanGuard detects that port 1070 is being used by another application.
6. Click OK.
4.5.3 Connecting computers to a Relay
To connect a computer to a Relay:
1. Open GFI LanGuard.
2. Click Configuration tab > Agents Management.
3. Right-click on the Agent you want to configure and select Properties. This opens the Agent's
Properties dialog.
Note
Alternatively, right-click on an computer/group from the computer tree and select
Properties.
4. Click Relays tab.
GFI LanGuard 4 Managing Agents | 60
Screenshot 28: Connecting to a Relay Agent
5. From the Assign a relay agent area, select Use relay agent and choose the relay from the dropdown menu.
6. Click OK.
4.6 Managing Agent groups
The computer tree enables you to configure agent properties of groups of computers. To configure computer group properties:
1. From the computer tree, right-click a group of computers and click Properties.
2.(Optional) From General tab, specify name, type and authentication method for the selected group.
3. Select Agent Status tab, and configure the following options:
Table 20: Agent group status
Option Description
Automatically deploy agents on newly discovered computers.
Enable automatic agents deployment
Remove all agents
Change scan schedule
Remove all installed agents from this group.
Configure the schedule, when GFI LanGuard searches for new computers.
Scanning profile
Auto remediation settings
Configure the audit schedule; when target computers are scanned.
GFI LanGuard 4 Managing Agents | 61
4. Select Network Discovery and configure the following options:
Table 21: Agent group network discovery
Option
Check automatically for new machines in this group
Change schedule
Description
GFI LanGuard will search for new machines automatically.
Run now
Scan OU recursively
Change the schedule when GFI LanGuard searches for new computers.
Run network discovery.
Recursively, loop through all organization units and enroll computers.
5. SelectAttributes tab to manage the attributes assigned to the computer selected. Use the Add,
Edit and Remove buttons to manage attributes.
Screenshot 29: Agent Attributes
6. Click Relays tab to configure agent relays. Relays enable computers other than the one hosting GFI
LanGuard to act as GFI LanGuard server. This helps you load-balance traffic directed to that machine and optimize network scanning performance.
GFI LanGuard 4 Managing Agents | 62
Screenshot 30: Agent Relays
7. Configure the options described below:
Table 22: Agent relay options
Option
Connect directly to GFI
LanGuard server
Use relay agent
Description
The selected computer will download product updates and patches from the GFI LanGuard server.
The selected computer will use a relay agent to download product updates and patches.
Select the relay agent to use from the drop down list.
Note
Some options are disabled because they are applicable only for single computers.
8. Click OK.
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5 Scanning Your Network
This chapter provides you with information about the different scanning profiles that ship with GFI
LanGuard, as well as how to trigger immediate or scheduled manual scans. Select the most suitable scanning profile and scanning mode (such as using Agent-less versus Agent-based scans), depending on the availability and location of your scan targets.
Topics in this chapter:
5.2 Available Scanning Profiles
5.4 Enabling security audit policies
5.1 About Scanning Profiles
GFI LanGuard enables you to scan your IT infrastructure for particular vulnerabilities using pre– configured sets of checks known as scanning profiles. Scanning profiles enable you to scan your network targets and enumerate only specific information. For example, you may want to use a scanning profile that is set to be used when scanning the computers in your DMZ as opposed to your internal network.
In practice, scanning profiles enable you to focus your vulnerability scanning efforts on to a specific area of your IT infrastructure, such as identifying only missing security updates. The benefit is that you have less scan results data to analyze; tightening up the scope of your investigation and help you quickly locate the information that you require, more easily.
Through multiple scanning profiles, you can perform various network security audits without having to go through a reconfiguration process for every type of security scan required.
5.2 Available Scanning Profiles
GFI LanGuard ships with the default scanning profiles described in the sections below. To create your own custom scanning profiles, refer to
Creating a new Scanning Profile
. Use the information provided in the following sections to understand what each scanning profile detects on your scan targets:
Complete/Combination Scans profiles
Vulnerability Assessment profiles
Network and Software Audit profiles
GFI LanGuard 5 Scanning Your Network | 64
5.2.1 Complete/Combination Scans
Table 23: Complete/Combination scanning profiles
Complete/Combination Scans profiles
Full Vulnerability
Assessment
Use this scanning profile to enumerate particular network vulnerabilities such as open TCP/UDP ports commonly exploited by Trojans as well as missing patches and service packs. The list of vulnerabilities enumerated by this profile can be customized through the Vulnerabilities tab. Installed USB devices and applications are not enumerated by this profile. This profile will scan for all vulnerabilities. This includes vulnerabilities which have an associated Microsoft
® patch to them and which are considered missing patches.
Full Scan
(Active)
Full Scan
(Slow Networks)
Use this scanning profile to retrieve system information as well as scan your network for all supported vulnerabilities including open TCP/UDP ports, missing patches and service packs, USB devices connected and more. The vulnerability check timeouts in this profile are specifically preconfigured to suite the network traffic and transmission delays usually associated with LAN environments.
Use this scanning profile to retrieve system information as well as scan your network for all supported vulnerabilities including open TCP/UDP ports, missing patches and service packs, USB devices connected and more… The vulnerability check timeouts in this profile are specifically preconfigured to suite the network traffic and transmission delays usually associated with WAN environments.
5.2.2 Vulnerability Assessment
Table 24: Vulnerability assessment scanning profiles
Vulnerability Assessment profiles
Use this scanning profile to enumerate all vulnerabilities reported in the SANS top 20 list.
Top SANS 20
Vulnerabilities
High Security
Vulnerabilities
Last Year's Vulnerabilities
Only Web
Use this scanning profile to enumerate open TCP/UDP ports and high security vulnerabilities. The list of TCP/UDP ports and high security vulnerabilities that will be enumerated by this profile can be customized through the TCP/UDP Ports tabs and the Vulnerabilities tab respectively.
Use this scanning profile to enumerate network vulnerabilities that emerged during the last 12 months.
Use this scanning profile to identify web–server specific vulnerabilities. This includes scanning and enumerating open TCP ports that are most commonly used by web–servers such as port 80. Only TCP ports commonly used by web–servers are scanned by this profile. Network auditing operations as well as enumeration of vulnerabilities and missing patches are not performed using this profile.
Missing
Patches
Critical
Patches
Last Month's
Patches
Only Service
Packs
Non-
Microsoft
®
Patches
Security
Patches
Use this scanning profile to enumerate missing patches. The list of missing patches that will be enumerated by this profile can be customized through the Patches tab.
Use this scanning profile to enumerate only missing patches that are tagged as critical. The list of critical patches that will be enumerated by this profile can be customized through the Patches tab.
Use this scanning profile to enumerate only missing patches that were released last month. The list of missing patches that will be enumerated by this profile can be customized through the Patches tab.
Use this scanning profile to enumerate missing service packs. The list of service packs that will be enumerated by this profile can be customized through the Patches tab.
Use this scanning profile to enumerate missing Third-Party patches, such as Adobe products.
Use this scanning profile to enumerate missing Microsoft scan targets.
® and non-Microsoft ® Security Patches on your
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5.2.3 Network & Software Audit
Table 25: Network & Software Audit
Network & Software Audit profiles
Trojan
Ports
Port
Scanner
Software
Audit
Use this scanning profile to enumerate open TCP/UDP ports that are commonly exploited by known Trojans. The list of TCP/UDP ports to be scanned can be customized through the TCP Ports and UDP Ports tabs respectively. Only the TCP/UDP ports commonly exploited by known Trojans are scanned by this profile. Network auditing operations as well as enumeration of other open TCP/UDP ports and missing patches are not performed by this profile.
Use this scanning profile to enumerate open TCP/UDP ports including those most commonly exploited by
Trojans. The list of ports that will be enumerated by this profile can be customized through the TCP/UDP ports tab.
Use this scanning profile to enumerate all software applications installed on scan targets. This includes security software such as anti–virus and anti–spyware.
Full TCP &
UDP Scan
Use this scanning profile to audit your network and enumerate all open TCP and UDP ports.
Only SNMP Use this scanning profile to perform network discovery and retrieve information regarding hardware devices (routers, switches, printers, etc.) that have SNMP enabled. This enables you to monitor network– attached devices for conditions that require administrative attention.
Ping Them
All
Use this scanning profile to audit your network and enumerate all computers that are currently connected and running.
Share
Finder
Uptimes
Disks Space
Usage
System
Information
Hardware
Audit
Network
Discovery
Use this scanning profile to audit your network and enumerate all open shares either hidden or visible.
No vulnerability checks are performed by this profile.
Use this scanning profile to audit your network and identify how long each computer has been running since the last reboot.
Use this scanning profile to audit your network and retrieve system information on available storage space.
Use this scanning profile to retrieve system information such as operating system details, wireless/virtual/physical network devices connected, USB devices connected, installed applications and more.
Use this scanning profile to audit your network and enumerate all hardware devices currently connected to your network computers.
Use this scanning profile to enumerate any IP enabled device connected to your network.
5.3 Manual scans
Manual scan is the process of performing audits on target computers without using agents. To perform a manual scan on a specific computer:
1. Launch GFI LanGuard.
2. From the Home tab click Launch a Scan. Alternatively, click the Scan tab.
Screenshot 31: Manual scan settings
3. From the Scan Target drop–down menu, select the target computer or group of computers to scan using the following options:
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Table 26: Target options when auditing
Option Description
Localhost
Domain: primary domain
Audit the local host where GFI LanGuard is installed.
Audit the entire domain / workgroup of the computer / server where GFI LanGuard is installed.
Note
Optionally, from the computer tree, right-click a computer/computer group and select
Scan > Custom Scan.
4. Click the browse button (...) to define custom rules for adding scan targets.
Screenshot 32: Custom target properties
5. From the Custom target properties dialog, click Add new rule links to create a custom rule for computers you want to scan or exclude from scanning.
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Screenshot 33: Add new rule...
6. From the Add new rule dialog, select the Rule type described below to add computers:
Table 27: Custom target properties
Rule type Description
Computer name is
Computers file list is
Search and add computers by name. Key–in a valid computer name and click Add for each computer.
Click OK to apply changes.
Search and add computers from a text file. Click the browse button and locate the text file. Click OK to apply changes.
Note
When submitting a list of target computers from file, ensure that the file contains only one target computer name per line.
Domain name is
Search and add computers that are members of a domain. Select the domains from the list and click OK.
IP address is Search and add computers by IP address. Select This computer to add the local host or Scan another
computer to add a remote computer. Key–in the IP address if required and click OK.
IP address range is
Search and add computers within an IP range. Select Scan an IP address range and key in the IP range or select CIDR subnet and key–in the range using CIDR notation.
Note
The Classless Inter–Domain Routing (CIDR) provides an alternative way of specifying an IP address range. The notation is as follows: <Base address> / <IP network prefix>. Example:
192.168.0.0/16
Organization unit is
Search and add computers within an organizational unit. Click Select and from the list select the Organizational units. Click OK.
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7. Once the rules are added, click OK to close the Add new rule dialog. Click OK to close the Custom
target properties dialog and return to the scan settings.
8. From the Profile drop–down menu, select the scan profile that you want GFI LanGuard to action
during the scan. For more information, refer to Available Scanning Profiles (page 64).
9. From the Credentials drop–down menu, select the log–on method used by GFI LanGuard to log onto the scan targets. The table below describes the available options:
Table 28: Logon and audit options
Option Description
Use the current logged on user credentials when logging on scan targets.
Currently logged on user
Alternative credentials
A null session
Use custom credentials. Key–in the user name and password to use.
A private key file
Log onto scan targets using a null session. The user will log onto the target machine as an anonymous user.
Log onto UNIX machines using SSH. A user name and password is required.
Note
The credentials provided need to have administrator privileges in order for GFI
LanGuard to log–on to the target computers and carry out the network audit.
10.(Optional) Click Scan Options and configure the options described below:
Table 29: Scan options
Option
Use per computer credentials when available
Remember credentials
Wake up offline computers
Shut down computers after scan
Description
Logon target machines using the credentials specified in the Dashboard
Use the configured credentials as default when performing an audit.
Shut down when a scan is complete.
11. Click Scan to start auditing the selected targets.
5.4 Enabling security audit policies
An important part of any security plan is the ability to monitor and audit events on your network.
These event logs are frequently referenced to identify security holes or breaches. Identifying attempts and preventing them from becoming successful breaches of your system security is critical.
In Windows, you can use Group Policies to set up an audit policy that can track user activities or system events in specific logs.
To keep track of your system auditing policy, GFI LanGuard collects the security audit policy settings from target computers and includes them in the scan result. To access more information on the result click on Security Audit Policy sub–node.
Apart from gaining knowledge on the current audit policy settings, you can also use GFI LanGuard to access and modify the audit policy settings of your target computers. To achieve this:
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1. After scanning a remote computer, from the Scan Results Overview panel, right–click on the respective target computer and select Enable auditing on > This computer/Selected computers/All
computers.
Screenshot 34: The audit policy administration wizard
2. Select/unselect auditing policies accordingly, and click Next to deploy the audit policy configuration settings, on the target computer(s).
3. At this stage, a dialog will show whether the deployment of audit policy settings was successful or not. To proceed to the next stage click Next. Click Back to re–deploy settings on failed computers.
4. Click Finish to finalize configuration. Restart a scan to update results.
5.5 Scheduled scans
A scheduled scan is a network audit that is scheduled to run automatically on a specific date/time and at a specific frequency. Scheduled scans can be set to execute once or periodically. Scheduled scan status is monitored using the Activity Monitor tab > Security Scans.
GFI recommends scheduled scans:
When GFI LanGuard Agents are not deployed on the target computers
To automatically perform periodical/regular network vulnerability scans using same scanning profiles and parameters
To automatically trigger scans after office hours and generate alerts and auto–distribution of scan results via email
To automatically trigger auto–remediation options, (Example: Auto-download and deploy missing updates).
The following sections contain information to guide you in configuring and executing scheduled scans:
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Editing scheduled scan settings
Configuring scheduled scan properties
5.5.1 Creating a scheduled scan
1. Launch GFI LanGuard.
2. Click Configuration tab > Scheduled Scans.
3. From Common Tasks, select New scheduled scan.
Screenshot 35: New Scheduled Scan dialog
4. Select one of the options described below and click Next.
Table 30: New scheduled scan type
Option
Scan a single computer
Scan a range of computers
Scan a list of computers
Scan computers in text file
Scan a domains or organizational units
Description
Scan local host or one specific computer.
Scan a number of computers defined through an IP range.
Manually create a list of targets, import targets from file or select targets from network list.
Scan targets enumerated in a specific text file.
Scan all targets connected to a specified domain/organizational unit.
5. Depending on the option selected in the previous step, specify the respective target computer(s) details and click Next.
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Screenshot 36: Scheduled scan frequency
6. Specify date/time/frequency of the new scheduled scan and click Next.
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Screenshot 37: Select scanning profile
7. From the Scan job operation drop-down menu, select the scanning profile to be used during the
scan and click Next. For more information, refer to Available Scanning Profiles (page 64).
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Screenshot 38: Remote logon credentials
8. (Optional) Specify Remote logon credentials and click Next. Remote logon credentials can be either one of the following:
Table 31: Remote logon credentials
Option
GFI LanGuard 11 Attendant Service account
Alternative credentials
Description
Performs the scan using the credentials specified while installing GFI Lan-
Guard 2011.
Specify alternate credentials to connect to the scan computers.
SSH Private Key
Use per computer credentials when available
Note
Ensure the supplied credentials have administrative privileges.
Key in a username and select the key file used to logon to UNIX/LINUX based systems.
Use predefined credentials for the scan being configured.
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Screenshot 39: Scheduled scan reporting options
9. From the Power saving options, configure the following options:
Table 32: Power saving options
Option
Wait for offline machines to connect to network
Attempt to wake up offline computers
Shut down computers after the job has finished
Description
Shut down computers after the job has finished
After a computer has been scanned or an auto-remediation job has been done, GFI
LanGuard attempts to shut down the computer if the time is in the specified timeframe.
Note
If shut down options are defined in Auto-remediation options, the power saving options are ignored.
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Screenshot 40: Scheduled scan auto–remediation options
10. From the auto–remediation dialog, select the required options and click Next. The table below describes the list of available options:
Table 33: Auto–remediation options
Option Description
Automatically download and deploy missing patches on target machines.
Download and deploy missing updates
Download and deploy missing service packs and update rollups
Automatically download and deploy missing service packs on target machines.
Uninstall unauthorized applications
Configure auto–remediation
View applications which this scan will uninstall
If this option is selected all applications validated as unauthorized, will be uninstalled from the
Automatically remove unauthorized applications from target machines. Unauthorized appli-
Click the link to launch the applications which will be uninstalled dialog. This will list all the applications that will be uninstalled when the scheduled scan is finished.
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Screenshot 41: Scheduled scan reporting options
11. (Optional) Configure Reporting options as described below:
Table 34: Reporting options
Option
Email the scan report
Save the scan report to disk
Comparison data and auto remediation details
Description
Send a report by email at the end of each scheduled scan.
Save a report to disk at the end of each scheduled scan
Include details of auto remediation actions performed and result comparison with previous security scans.
Full scan results data
Configure alerting options
Override general alerting options, and send email to
Note
Comparison is done between scans with same scan target(s) and scanning profile.
Include full scan result details.
(Optional) Send a report by email to specific email address. GFI LanGuard alerting options are overridden.
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Screenshot 42: Scheduled scan reporting options
12. Review the scan settings summary and click Finish.
Note
By default, all new scheduled scans are disabled. To enable, select Configuration tab >
Scheduled Scans and click on the button.
Note
Confirm that the new scheduled scans are successfully set by clicking on Activity
Monitor tab > Security Scans. New scheduled scans are listed in the queue.
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5.5.2 Editing scheduled scan settings
Scan schedules can be reviewed, edited, or deleted from Configuration tab > Scheduled Scans node.
All scans are listed in the review page together with the relevant information. Use the scheduled scan toolbar to perform the actions described below:
Table 35: Options to manage scanning profiles
Options
Add new scan
Display the New scheduled scan wizard and create a new scheduled scan.
Delete
Use this button to delete the selected scheduled scan.
Properties
Review and edit the properties of the selected scan.
Enable/Disable
Toggle the status of the selected scan between enabled and disabled. This enables you to activate/suspend a scanning schedule without deleting the scheduled scan.
Scan now
Trigger the selected scheduled scan. This button overrides the scheduled scan date/time settings and executes an immediate scan.
5.5.3 Configuring scheduled scan properties
The scheduled scan properties page enables you to configure all the parameters of the scheduled scans.
To use the scheduled scan properties tab:
1. Go to Configuration tab > Scheduled Scans.
2. Select the scheduled scan and click the Scheduled Scan Properties.
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Screenshot 43: Scheduled Scan properties
Table 36: Schedule scan properties
Tab
General
Description
Make changes to scan target setting, type of scanning profile and scan frequency.
Logon Credentials
Power Saving
Specify logon credentials used when scanning the specified target.
Auto–remediation
Reporting
Configure power saving options. This dialog enables you to configure the scan to wait for offline machines to connect to the network, attempt to wake up offline machines and shut down machines when the scan is completed.
Configure the remediation options applicable to the scan being configured. This includes downloading and installing missing patches and service packs and unauthorized software un–installation.
Configure reporting options used for the selected scheduled scan.
3. Click OK.
5.6 Agent scheduled scans
GFI LanGuard enables you to configure scheduled scans on computers running agents. Scheduling can be configured from the Agent properties dialog as follows:
1. Launch GFI LanGuard.
2. From the Home screen, select View Dashboard.
3. From the computer tree, right-click the computer/computer group you want to configure and select Properties.
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4. Click Agent Status tab > Change scan schedule....
Screenshot 44: Agent Activity Recurrence
5. Select Enable Schedule and configure the recurrence pattern.
6. Click OK.
Note
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5.6.1 Starting an Agent scan manually
To start an on demand scan on an agent computer:
1. Launch GFI LanGuard.
2. Click View Dashboard and select the computer(s) you want to start scanning.
3. From the Agent Status section, click Scan Now.
Note
Scan Now is only visible when the Agent Status is Agent Installed.
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6 Dashboard
The Dashboard section provides you with extensive security information based on data acquired during audits. Amongst others, the Dashboard enables you to determine the current network vulnerability level, the top–most vulnerable computers, and the number of computers in the database.
Topics in this chapter:
6.1 Achieving results from the dashboard
6.1 Achieving results from the dashboard
The dashboard is an important feature of GFI LanGuard. As the central point of the application, it enables you to perform all the common tasks supported by GFI LanGuard, including:
Monitoring all computers managed by GFI LanGuard
Managing scan targets. Add, edit or remove computers, domains and workgroups
Deploying agents on scan targets and configure agent settings
Configuring computer credentials
Configuring auto–remediation options
Configuring recurrent network discovery on the managed domains/workgroups/OUs
Trigger security scans/refresh scan information
Analyze computers security state and audit details
Jump to relevant locations by clicking on security sensors and charts.
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6.2 Using the Dashboard
This section provides the required information on how to use the GFI LanGuard Dashboard. To display the Dashboard:
1. Launch GFI LanGuard and click Dashboard tab.
Screenshot 45: View Dashboard
2. From the computers list, select a computer or computer group. The dashboard information updates according to your selection.
6.3 Using the Computer Tree
GFI LanGuard includes filtering and grouping options that enable you to quickly find a computer or domain and immediately display results.
When a computer or group is selected from the computer tree, results in the dashboard are automatically updated. Press CRTL and select multiple computers to display results for specific computers.
The following are functions supported by the computer tree:
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6.3.1 Simple filtering
To filter for a specific computer or group:
1. From the left pane, click Filter.
2. Configure the criteria and click Turn ON filters.
Screenshot 46: Simple filtering
6.3.2 Advanced filtering
To filter for a specific computer or group using advanced filtering:
1. From the left pane, click Filter and Advanced filtering...
2. From the Advanced Filtering dialog, click Add.
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Screenshot 47: Add Filter Properties
3. Select the filter property to restrict and click Next.
4. Select the condition and key in the condition value. Click Add.
5. Repeat steps 2 to 4 for each condition. Click OK.
6.3.3 Grouping
To group machines by specific attributes:
1. From the left panel, click Group.
2. Select one of the following attributes:
Domain and Organizational Unit
Operating System
Network Role
Relays Distribution
Attributes.
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Note
3. If Attributes is selected, select the attribute from the drop-down list.
4. Click Apply grouping.
6.3.4 Searching
The Search tab within the Computers tree enables you to search and display results for a specific computer or group. To display results for a specific computer:
1. From the Computers tree, select Search.
Screenshot 48: Search specific computers and groups
2. Key in the search criteria and use the following options:
Table 37: Search options
Option
Group results by information category
Group results by computer
Search History
Advanced search
Description
Search results are grouped by category. The result contains the latest computer information. Amongst others results are grouped by:
Computer Information
Hardware devices
Logged on Users
Processes
Virtual technology
Search results are grouped by computer name. The result contains the latest computer information.
Search results include the information from previous scans.
Configure advanced search options.
Note
For more information, refer to Full text searching (page 174).
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6.4 Using Attributes
Attributes enable you to group and configure single or multiple computers at one go. Attributes also enable you to remediate vulnerabilities or deploy software on specific computers based on the assigned attribute. The following sections contain information about:
Assigning attributes to a computer
Assigning attributes to a group
6.4.1 Assigning attributes to a computer
To assign attributes to a single computer:
1. Click Dashboard tab.
2. From the computer tree, right-click a computer and select Assign attributes.
Screenshot 49: Assigning attributes: Single computer
3. From the Properties dialog > Attributes tab, click Add.
4. Configure new attributes settings and click OK.
5. Click OK to save your settings.
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6.4.2 Assigning attributes to a group
GFI LanGuard enables you to assign attributes to specific groups, domains, organizational units and networks. Once attributes are assigned, each member of the selected group inherits the attributes settings.
To assign attributes to a group:
1. Click Dashboard tab.
2. From the computers list, right-click network and select Assign attributes.
3. From the Add more computers wizard, select network and click Next.
Screenshot 50: Assigning attributes: Multiple computers
4. Click Add and configure the respective attributes. Use the Edit and Remove buttons to edit or remove the selected attributes.
5. Click Finish to save your settings.
6.4.3 Configuring attributes
To configure attributes:
1. From the Properties dialog, click Attributes tab.
2. Click Add to launch the New attribute dialog.
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Screenshot 51: New attribute dialog
3. From the Name drop-down menu, select an attribute or key-in a name to create a new one.
4. Specify a value for the attribute in the Value field. Click OK.
5. Repeat steps 2 to 4 until you add all the required attributes.
6. Click OK to save your settings.
6.5 Dashboard actions
The Actions section enables you to manage and remediate vulnerabilities and missing patches found in your network. To access the Actions section:
1. Select Dashboard tab.
2. Click Vulnerabilities or Patches tab.
Screenshot 52: Actions section in the Dashboard
3. Select one of the following actions:
Table 38: Dashboard actions
Action
Remediate
Description
Launch the Remediation Center to deploy and manage missing patches.
Note
For more information, refer to Manual Remediation (page 138).
Acknowledge Launch the Rule-Acknowledge Patch dialog. This enables you to acknowledge issues so that they will not affect the Vulnerability level of your network. Configure for which machine this rule applies
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Action
Ignore
Change Severity
Rules Manager
Description
Launch the Rule-Ignore Patch dialog. This enables you to ignore missing patches or vulnerabilities so that they will not be reported as issues in the future. Configure for which machine this rule applies and the time span that the issue is ignored.
Launch the Rule-Change Severity dialog. This enables you to change the severity level of vulnerability.
Configure for which machines this rule applies and the severity level.
Launch the Rules Manager dialog. This enables you to search and remove configured rules.
6.6 Exporting issue list
GFI LanGuard enables you to export issue lists to Portable Document Format (PDF), Microsoft Office
Excel (XLS) or Hyper Text Markup Language (HTML). When a list supports exporting, these icons are displayed in the top-right corner of the list. Select the respective icon and configure the export settings.
6.7 Dashboard views
The GFI LanGuard dashboard is made up of multiple views. These different views enable real-time monitoring of your scan targets and allow you to perform instant remedial and reporting operations.
The following sections contain information about:
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6.7.1 Overview
Screenshot 53: Dashboard Overview
The Dashboard Overview is a graphical representation of the security level/vulnerability level of a single computer, domain or entire network.
When a computer or domain is selected, the results related to the selected computer/domain are automatically updated in the dashboard. Below is a description of each section found in the dashboard:
Table 39: Software information from an audit
Section Description
Network security level
This rating indicates the vulnerability level of a computer/network, depending on the number and type of vulnerabilities and/or missing patches found. A high vulnerability level is a result of vulnerabilities and/or missing patches which average severity is categorized as high.
Computer vulnerability distribution
Most vulnerable computers
This chart is available only when selecting a domain or a workgroup, and displays the distribution of vulnerabilities on your network. This chart enables you to determine how many computers have high, medium and low vulnerability rating.
This list is available only when selecting a domain or a workgroup, and shows the most vulnerable computers discovered during the scan. The icon color on the left indicates the vulnerability level.
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Section Description
Agent Status When selecting a domain or workgroup, a chart showing the overall agent status of all computers within the domain/workgroup is displayed. This enables you to determine the number of agents installed or pending installation on the selected domain/workgroup. When selecting a single computer, this section displays an icon representing the agent status. The icons are described below:
Not installed - Agent is not installed on the target machine.
Pending installation - Installation is pending. A status can be pending when the machine is offline or the agent is being installed.
Pending uninstall - Uninstallation is pending. A status can be pending when the machine is offline or the agent is being uninstalled.
Installed - Agent is installed on the target machine.
Relay Agent Installed - The selected computers are relay agents.
Audit status This chart is available only when selecting a domain or workgroup and enables you to identify how many audits have been performed on your network grouped by time.
Vulnerability trends over time
When a domain or workgroup is selected, this section displays a line graph showing the change of vulnerability level over time grouped by computer count. When a single computer is selected, this section displays a graph showing the change of vulnerability level over time for the selected computer.
Computers by network role
This chart is available only when selecting a domain or a workgroup and displays the number of audited computers, grouped by network role. Amongst other roles, this graph identifies the number of servers and workstations per selected domain.
Computers by operating system
This chart is available only when selecting a domain or a workgroup and displays the number of audited computers, grouped by the installed operating system.
Computer details
This section is available when selecting a single computer and enables you to view the selected computer details.
Scan activity This line graph is available only when selecting a single computer and enables you to view the number of scans/audits performed on the selected computer. In addition enables you to verify if scheduled scans are being performed.
Remediation
Activity
This line graph is available only when selecting a single computer and enables you to view the number of remediation activities performed on the selected computer. In addition, this graph enables you to verify that auto–remediation is performed.
Top 5 Issues to Address
Results statistics
This section is available only when selecting a single computer, and displays the top five issues to address for the selected computer.
This section is available only when selecting a single computer and displays an overview of the audit result. Amongst others, the result enables you to identify the number of missing patches, number of installed applications, open ports and running services.
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Section
Security Sensors
Description
This section enables you to identify issues at a glance. Click a sensor to navigate and display issues and vulnerabilities for a specific computer or group. Sensors enable you to identify:
Missing Software Updates
Missing service packs
Vulnerabilities
Firewall Issues
Unauthorized Applications
Audit Status
Credentials setup
Malware Protection Issues
Agent Health Issues.
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6.7.2 Computers view
Screenshot 54: Analyze results by computer
Select this view to group audit results by computer. From the drop-down list, select one of the options described below:
Table 40: View by computers information
Option Description
Agent Details Select this option to view the agent status. This option enables you to identify if an agent is installed on a computer and if yes, displays the type of credentials being used by the agent.
Vulnerabilities View the number of vulnerabilities found on a computer grouped by severity. Severity of a vulnerability can be:
High
Patching status
Medium
Low
Potential.
View the number of:
Missing Security/non-Security Updates
Missing Service Packs and Update Rollups
Installed Security/non-Security Updates
Installed Service Packs and Updates Rollups.
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Option
Open ports
Software
Hardware
System information
Attributes
Description
View the number of:
Open TCP ports
Open UDP ports
Backdoors.
View the number of:
Antiphishing engines
Antispyware engines
Antivirus engines
Backup applications
Data loss prevention applications
Device access and desk encryption applications
Firewalls
Installed applications
Instant messengers
Peer to peer applications
Unauthorized applications
Virtual machines
VPN clients
Web browsers.
View information on:
Number of disk drives
Free disk space
Memory size
Number of processors
Other hardware.
View information on:
The number of shared folders
Number of groups
Number of users
Logged users
Audit policy status.
Adds an Attributes column and groups your scan targets by the assigned attribute.
Note
To launch the Overview tab and display more details on a specific computer, double click a computer from the list.
Note
Drag and drop a column header in the designated area to group data by criteria.
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6.7.3 History view
Select this view to group audit results by date for a specific computer. To configure the history starting date or history period click the link provided.
Screenshot 55: History view in the Dashboard
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6.7.4 Vulnerabilities View
Display more details on the vulnerabilities found on a network and the number of affected computers.
When a vulnerability is selected from the Vulnerability List, the Details section provides more information on the selected vulnerability. From the Details, section click Affected computers or
Unaffected computers to display a list of affected and unaffected computers.
Screenshot 56: Vulnerabilities view in the Dashboard
Note
Drag and drop a column header in the designated area to group data by criteria.
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6.7.5 Patches View
Display more details on the missing/installed patches and service packs found during a network audit.
When a patch/service pack is selected from the list, the Details section provides more information on the selected patch/service pack. From the Details section, click Missing on to display a list of computers having the selected patch missing.
Screenshot 57: Patches view in Dashboard
Note
Drag and drop a column header in the designated area to group data by criteria.
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6.7.6 Ports View
Display more details on the open ports found during a network audit. When a port is selected from the
Port List, the Details section provides more information on the selected port. From the Details section, click View computers having this port open to display a list of computers having the selected port open.
Screenshot 58: Ports view in Dashboard
Note
Drag and drop a column header in the designated area to group data by criteria.
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6.7.7 Software View
Display more details on the installed applications found during a network audit. When an application is selected from the Application List, the Details section provides more information on the selected application.
Screenshot 59: Software view in Dashboard
Note
Drag and drop a column header in the designated area to group data by criteria.
Note
Agent-less scans require to temporarily run a service on the remote machine. Select
Enable full security applications audit… to enable this service on all agent-less scanning profiles.
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6.7.8 Hardware View
Display more information on the hardware found during a network audit. Select hardware from the list to display more details.
Screenshot 60: Hardware view in Dashboard
Note
Drag and drop a column header in the designated area to group data by criteria.
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6.7.9 System Information View
The System Information tab, displays information associated with the operating system of a scan target(s).
Screenshot 61: System Information view in Dashboard
Note
Drag and drop a column header in the designated area to group data by criteria.
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7 Interpreting Results
On completion of a network security scan, it is important to identify the areas that require immediate attention. Use the information provided in this chapter to determine the correct analysis and interpretation approach to get the most out of your scan results and apply the appropriate fixes.
Topics in this chapter:
7.1 Interpreting manual scan results
7.2 Loading results from the database
7.3 Saving and loading XML results
7.1 Interpreting manual scan results
The Scan Results Overview and Scan Results Details sections in the Scan tab, are designed to facilitate the result analysis process as much as possible. Use the information in the following sections to learn how scan results are interpreted and know which areas require your immediate attention:
7.1.1 Viewing scan results
Use this section to interpret results generated by manual scans and results stored in the database
backend. For more information, refer to Manual scans (page 66).
To view manual scan results:
1. Launch GFI LanGuard and click the Scan tab.
2, Launch a new scan or load the result from the database/file. For more information, refer to
Loading results from the database (page 113).
3. Once completed, the results are displayed in the Scan Result Overview and the Scan Results
Details sections.
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Screenshot 62: Results overview
From Scan Results Overview, expand a computer node to access results retrieved during the scan.
Security scan results are organized in two sub–nodes tagged as:
Vulnerability Assessment
Network & Software Audit
While a scan is in progress, each computer node has an icon that categorizes the response time. The table below describes the different icons used by GFI LanGuard to categorize the response time. The first icon indicates that the scan is queued, while the second icon indicates that the scan is in progress.
Table 41: Response time icons
Category Information
Fast response
Description
Less than 25ms
Medium response
Slow response
Between 25ms and 100ms
More than 100ms
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7.1.2 Vulnerability Level Rating
The GFI LanGuard vulnerability level is a rating assigned to each scanned computer. The rating can be viewed from:
Scan Results Details – This section in the Scan tab provides you with a vulnerability level meter assigned the computers/groups that have been scanned
Dashboard – The Dashboard section provides you with information for specific computers or selected groups of computers, from the computer tree. Select the computer/group and view the vulnerability meter from the right pane. Select Entire Network to view the vulnerability level for all your scan targets.
Screenshot 63: Vulnerability level meter
How is the vulnerability level calculated?
The vulnerability level is calculated using a weighting system. After a scan, GFI LanGuard groups the discovered vulnerabilities in categories sorted by severity rating:
High
Medium
Low
For each rating, a weighted score is given. This is based on the total number of vulnerabilities per category.
Note
When the vulnerability level cannot be assessed and/or vulnerability scanning was not performed, GFI LanGuard gives a rating of N/A.
Weight scores
Table 42: Vulnerability level weight scores
Category
High Vulnerabilities
Medium Vulnerabilities
Low Vulnerabilities
1-2
3-5
> 5
1-2
3-5
> 5
Number of Detected Vulnerabilities
1-2
3-5
> 5
2
3
4
5
6
7
Scores
8
9
10
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Score classification
After categorizing detected vulnerabilities and generating a score for each category, the overall vulnerability level is generated. The vulnerability level is the severity rating with the highest score.
Vulnerability level scores:
A score of >= 8, results in High vulnerability rating
A score of <= 7 and >= 5, results in Medium vulnerability rating
A score of <= 4 and >=1, results in a Low vulnerability rating.
Example
During a scan of Computer A, the following vulnerabilities were discovered:
3 high vulnerabilities
8 medium vulnerabilities
5 low vulnerabilities.
The score for each category was calculated by GFI LanGuard and returned the following results:
3 high vulnerabilities = 9
8 medium vulnerabilities = 7
5 low vulnerabilities = 3.
The vulnerability level for Computer A is therefore HIGH.
Screenshot 64: Dashboard Vulnerability Meter
The vulnerability level is indicated using color–coded graphical bar:
Red bar = high vulnerability level
Green bar = low vulnerability level.
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7.1.3 Vulnerability Assessment
Screenshot 65: The Vulnerability Assessment node
Click on any Vulnerability Assessment node to view the security vulnerabilities identified on the target computer grouped by type and severity.
High Security Vulnerabilities
Click on the High Security Vulnerabilities or Low Security Vulnerabilities sub–nodes for a list of weaknesses discovered while auditing a target device. Groups are described in the following table:
Table 43: Vulnerability groups
Group Description
Mail, FTP, RPC,
DNS and Miscellaneous
Web
Shows vulnerabilities discovered on FTP servers, DNS servers, and SMTP/POP3/IMAP mail servers.
Links to Microsoft
®
Knowledge Base articles or other support documentation are provided.
Services
Lists discovered vulnerabilities on web servers (such as wrong configuration issues). Supported web servers include Apache, Internet Information Services (IIS
®
) and Netscape.
Lists vulnerabilities discovered in active services as well as the list of unused accounts that are still active and accessible on scanned targets.
Registry
Software
Rootkit
Registry settings of a scanned network device are listed. Links to support documentation and short vulnerability descriptions are provided.
Enumerates software installed on the scanned network device(s). Links to supporting documentation and short vulnerability descriptions are provided.
Enumerates discovered vulnerabilities because of having a rootkit installed on the scanned network device(s). Links to supporting documentation and short vulnerability descriptions are provided.
Potential vulnerabilities
Select Potential vulnerabilities sub–node to view scan result items classified as possible network weaknesses. Although not classified as vulnerabilities, these scan result entries still require particular attention since malicious users can exploit them during malicious activity.
For example, during vulnerability scanning GFI LanGuard enumerates all modems installed and configured on target computers. If unused, modems are of no threat to your network. If connected to a telephone line these modems can however be used to gain unauthorized and unmonitored access to the Internet. Users can potentially bypass corporate perimeter security including firewalls, anti–virus, website rating and web content blocking. This exposes the corporate IT infrastructure to a wide range of threats including hacker attacks. GFI LanGuard considers installed modems as possible threats and enumerates them in the Potential Vulnerabilities sub–node.
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Missing Service Packs
Click Missing Service Packs and Update Rollups or Missing Security Updates sub–nodes to check any missing software updates or patches. For a full list of missing service packs and missing patches that can be identified by GFI LanGuard, refer to http://go.gfi.com/?pageid=ms_app_fullreport
Bulletin information.
To access bulletin information, right–click on the respective service pack and select More details >
Bulletin Info.
Screenshot 66: Bulletin info dialog
7.1.4 Network & Software Audit
Screenshot 67: The network and software audit node
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Click Network & Software Audit to view security vulnerabilities identified on scanned targets. In this section, vulnerabilities are grouped by type and severity.
System Patching Status
Click System Patching Status to view all missing and installed patches on a target machine. Available links are:
Missing Service Packs and Update Rollups
Missing Security Updates
Missing Non-Security Updates
Installed Service Packs and Update Rollups
Installed Security Updates
Installed Non-Security Updates.
Screenshot 68: System patches status
Ports
Click Ports to view all open TCP and UDP ports detected during a scan. If a commonly exploited port is discovered to be open, GFI LanGuard marks it in red.
Note
Some software products may use the same ports as known Trojans. For additional security, GFI LanGuard identifies these ports as a threat.
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Apart from detecting open ports, GFI LanGuard uses service fingerprint technology to analyze the service(s) that are running behind the detected open port(s). With service fingerprint, GFI LanGuard can detect if malicious software is using the detected open port.
Screenshot 69: All UDP and TCP ports, found during a scan
Hardware
Click Hardware to view all details discovered by the hardware audit. The hardware audit, amongst others, displays information such as MAC addresses, IP addresses, device type; device vendor etc. The table below describes the hardware information groups:
Table 44: Hardware information from an audit
Information Description
Network
Devices
Includes information of all physical, virtual and software–enumerated devices.
Local Drives Includes information on local drives such as available disk space and file system type.
Processors Includes information regarding the processor of a target machine, such as vendor name and processor speed.
Motherboard Includes information regarding the motherboard of a target machine, such as product name, manufacturer, version and serial number.
Memory details
Includes information regarding the memory allocation of a target machine, such as free physical/virtual memory available.
Storage details
Display adapters
Other devices
Includes information regarding the storage of a target machine, such as floppy disk drive, CD/ROM and hard drives.
Includes information regarding the display and video devices of a target machine, such as the device manufacturer.
Includes information of devices that does not fall under the mentioned categories above, such as keyboard, ports, mouse and human interface devices.
Software
Click Software to view all details involved in the software audit. The software audit amongst others displays information such as:
Application name
Publisher
Version.
The table below describes the hardware information groups:
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Table 45: Software information from an audit
Icon Description
General Applications
Antivirus Applications
Enumerates installed software on scan targets.
Lists installed antivirus engines on scan targets.
Instant Messenger Applications
Patch Management Applications
Web Browser Applications
Firewall Applications
Anti–phishing Applications
VPN Client Applications
Peer–To–Peer Applications
Lists all detected instances of Instant messenger applications on scan targets.
Lists all the installed patch management applications, detected on your scan targets during a scan.
Contains scanned targets that have Internet browsers installed.
Enumerates information on installed Firewall applications on scan targets.
Lists information of installed anti–phishing engines on scan targets.
Includes information on installed Virtual Private Network clients on scan targets.
Shows installed Peer–To–Peer applications on scan targets.
System Information
Click System Information to view all details related to the operating system installed on a target machine. Table below describes the system information groups:
Table 46: System information from an audit
Category Information
Shares Share name
Share remark (extra details on the share).
Folder which is being shared on the target computer
Share permissions and access rights
Password
Policy
Security
Audit Policy
NTFS permissions and access rights.
Minimum password length
Maximum password length
Minimum password expiry date
Force logoff
Password history.
Audit account logon events
Audit account management
Audit directory service access
Audit logon events
And more…
Identify
Users sharing entire hard–drives, shares that have weak or incorrectly configured access permissions.
Start-up folders, and similar system files, that are accessible by unauthorized users, or through user accounts, that do not have administrator privileges, but are allowed to execute code on target computers.
Unnecessary or unused shares.
Incorrectly configured lockout control
Password strength enforcement policies.
Security holes or breaches.
Note
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Category Information
Registry Registered owner
Registered organization
Product name
NETBIOS
Names
Groups
Users
Logged
On Users
Sessions
Services
Processes
Remote
TOD
(time of day)
Current build number.
Workstation service
Domain name
Domain controllers
File server service.
Account operators
Administrators
Backup operations
Guest.
Full name
Privilege
Flags
Login.
List of logged on users.
Lists hosts remotely connected to the target computer during scanning.
List of active services.
List of active processes.
Time of remote workstation, server or laptop.
Identify
Hardware and software settings such as which drivers and applications will be automatically launched at system startup.
Rogue computers
Wrong configurations.
Wrong configurations
Security flaws due to rogue or obsolete user groups.
Rogue, obsolete or default user accounts.
Authorized and unauthorized users currently logged on computers.
Authorized and unauthorized remote connections.
Rogue or malicious processes; redundant services.
Rogue or malicious processes.
Time inconsistencies and regional settings
Wrong configurations.
7.2 Loading results from the database
By default, saved scan results are stored in a database. GFI LanGuard stores the results data of the last 10 scans performed per scanning profile. You can configure the number of scan results that are
stored in a database file. For more information, refer to Configuring Database Maintenance Options
To load saved scan results from the database backend or from XML files:
1. Launch GFI LanGuard.
2. Click the GFI LanGuard button > File > Load Scan Results from > Database…
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Screenshot 70: Reloaded scan results
3. Select the saved scan result and click OK.
4. Analyze loaded results. For more information on how to interpret results. refer to the following sections:
Vulnerability Assessment
Network and Software Audit.
7.3 Saving and loading XML results
Scan results are an invaluable source of information for systems administrators. GFI LanGuard results are stored in a SQL Server
® or a Access
™ database. In addition, scan results can also be exported to
XML.
To save scan results to XML file:
1. Launch GFI LanGuard.
2. Perform a manual scan. For more information, refer to Manual scans (page 66).
3. Once the scan is completed, click GFI LanGuard button > File > Save Scan Results.
4. Locate the destination where you want to save the XML and click Save.
To load saved scan results from an XML file:
1. Click the GFI LanGuard button > File > Load Scan Results from > XML File…
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2. Locate the scan results to load and click OK.
3. Analyze loaded results.
Note
For more information on how to interpret results, refer to the following sections:
Vulnerability Assessment
Network and Software Audit
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8 Remediate Vulnerabilities
GFI LanGuard enables you to manually or automatically fix vulnerabilities on network computers. Use the information in this chapter to learn how to configure and manage remediation operations to maintain a high level of security amongst your scan targets.
Topics in this chapter:
8.1 Automatic Remediation
Automatic-Remediation enables you to automatically download and deploy missing patches as well as uninstall unauthorized applications during scheduled operations, automatically.
IMPORTANT
Auto–remediation and un–installation of un–authorized applications only work with scanning profiles that detect missing patches and/or installed applications.
Automatic Remediation tasks:
Review Auto-Remediation Considerations
Configure Missing Updates Auto-Deployment
Configure Unauthorized Applications Auto-Uninstall
Configure Auto-Remediation options
Configure Wake-on-LAN on client machines
Configure End-User reboot and shut down options
Define Auto-Remediation Messages
Configure Agents Auto-remediation
8.1.1 Auto-remediation notes
Before enabling and configuring auto-remediation options, review the following notes about:
Installing software
Always test patches in a test environment before deployment.
By default, Microsoft
® updates are not enabled for automatic deployment. Manually approve each patch (as it is tested) or set all Microsoft
® updates as approved.
Uninstalling software
To uninstall software, a 3–stage process is required in order to identify whether the selected application supports silent uninstall:
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Table 47: Automatic remediation stages
Stage Description
Stage 1 Select the application to auto–uninstall.
Stage 2 Ensure that application supports silent uninstall. Test this by trying to remotely uninstall the application. This is the validation process.
Stage 3 Setup a scheduled audit that will remove the unauthorized application. This is done automatically (using agents) or manually (agent–less approach).
Auto–remediation and un–installation of un–authorized applications only work with scanning profiles that detect missing patches and/or installed applications.
8.1.2 Configuring missing updates auto-deployment
GFI LanGuard ships with a patch auto–deployment feature, that enables you to automatically deploy missing patches and service packs in all 38 languages supported by Microsoft
® products. GFI LanGuard also supports patching of third party (Non–Microsoft
®
) patches. For a complete list of supported third party applications visit refer to http://go.gfi.com/?pageid=3p_fullreport . Refer to the following section for information about:
Enabling Patch Auto-Deployment
Configuring Patch Auto-Deployment advanced options
Configuring Patch Auto-download settings
Enabling Patch Auto-Deployment
To configure patch auto–deployment:
1. Click on the Configuration tab > Software Updates > Patch Auto–Deployment.
2. In the right pane, select the patches to auto–deploy.
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Screenshot 71: Patch auto–deployment
Note
Key-in a search criteria and click Find to search for a specific application.
Configuring Patch Auto-Deployment advanced options
To configure auto–remediation:
1. Click Configuration tab > Software Updates > Patch Auto–Deployment and from Common Tasks, click Advanced options.
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Screenshot 72: Patch Auto–Deployment Advanced Options
2. Configure the following options:
Table 48: Patch Auto-Deployment Advanced Options
Option Description
Send an email when new patches are identified.
Send an email when new patches or service packs are available.
Enable automatic approval for: Selected updates are automatically downloaded and installed on target computers. Select from the following:
Security updates
Non-security updates
Disable automatic approval for
Service packs and update rollups.
Selected updates are downloaded but not installed automatically on target computers. Select from the following:
Microsoft
® updates
Non-Microsoft
® updates
Major version upgrades.
Note
3. Select the appropriate check boxes and click OK to save changes.
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Configuring Patch Auto-download settings
GFI LanGuard ships with a patch auto–download feature, that enables the automatic download of missing patches and service packs in all 38 languages supported by Microsoft
® products. In addition, you can also schedule patch auto–download by specifying the timeframe within which the download of patches is performed.
To configure patch auto–download:
1. Click Configuration tab > Software Updates > Patch Auto–Download.
2. From the right pane, click the link.
Screenshot 73: Configuring Patch Auto–download Properties
3. In the General tab, select between All patches or Only needed patches.
Note
Selecting All patches, downloads all patches issued by Microsoft
®
, regardless of whether these are required for deployment. The Only needs patches option downloads only patches required for deployment.
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Screenshot 74: Patch Repository settings
4. To change the location where the downloaded patches are stored click the Patch Repository tab and specify the required details.
5. Select Use files downloaded by WSUS when available, if you are using an existing setup of WSUS.
6. To change the timeframe during which patch downloads are performed, click Timeframe tab and specify the required details.
7. Click Apply and OK.
8.1.3 Configuring unauthorized applications auto-uninstall
Application auto–uninstall entails that applications marked as unauthorized for specific scanning profiles are first validated for a successful uninstall on a test machine. Subsequently a scheduled scan based on the scanning profile for which the application is marked as unauthorized, is configured to auto–uninstall applications.
GFI LanGuard applications inventory provides a list of all applications detected during past scans. The list is used to specify unauthorized applications. You can also manually add applications to the list.
You can do this by specifying the entire name as well as a partial name, specify generic names or part of an application name. GFI LanGuard automatically scans the list of applications and detects partial names. Refer to the following sections for information about:
Setting an application as unauthorized
Adding new applications to the unauthorized list
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Validating unauthorized applications for auto-uninstall
Managing applicable scheduled scans
Setting an application as unauthorized
1. Click on Configuration tab > Applications inventory sub–node.
2. From the list of applications detected on the right, double click the application to set as unauthorized.
Screenshot 75: Unauthorized application
3. Select the scanning profile for which this application will be set as unauthorized and click Next.
4.GFI LanGuard can associate partial names with entries already in the list. As a result, the system will prompt you to confirm whether to apply the same changes also to applications partially have the same name.
5. Click Finish to finalize settings.
Adding new applications to the unauthorized list
1. Click Configuration tab > Applications inventory sub–node.
2. From Common Tasks, click Add a new application.
3. In the welcome screen, click Next.
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Screenshot 76: Applications inventory wizard
4. Specify application name. Optionally provide the version number and publisher name. Click Next.
5. Select the scanning profiles that will detect unauthorized applications (Example: Full Scan) and click Next.
6. Specify whether changes made will effect applications, which have partial/full name match. Click
Next to continue.
7. Review the information and click Finish.
Validating unauthorized applications for auto-uninstall
Application auto–uninstall validation enables you to validate the uninstallation procedure for the applications which are to be automatically uninstalled by GFI LanGuard. This is a requirement prior to the actual uninstallation process and no applications are un–installed during scans unless verified.
1. Click Configuration tab > Applications Inventory > Auto–Uninstall Validation
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Screenshot 77: Application auto–uninstall validation
2. From the right pane, select an application to validate and click Validate.
3. In the Application auto–uninstall validation wizard, click Next.
4. Select the computer where to test the application auto–uninstall and click Next.
5. Provide the authentication details for the validation operation and click Next.
6. Review the Auto–uninstall validation wizard information and click Start.
Managing applicable scheduled scans
The Manage applicable scheduled scans button enables you to review or edit scheduled scans, which will perform the validated applications auto install. To manage a scheduled scan:
1. From the Auto–Uninstall validation pane, click Manage applicable scheduled scans.
2. From, Manage applicable schedule scans dialog, click one of the options described below:
Table 49: Manage applicable schedule scans
Option Description
Edit selected scan…
Create a new scheduled scan…
View all scheduled scans…
Add a new scheduled scan using the new scheduled scan wizard. For more information, refer to
Creating a scheduled scan (page 71).
Manage scheduled scans. For more information, refer to Editing scheduled scan settings (page
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8.1.4 Configuring auto-remediation options
To edit the general deployment options:
1. Launch GFI LanGuard.
2. From the computer tree, right-click a computer/computer group and select Properties.
Screenshot 78: Computer properties
3. Select the Agent Status tab and from Auto remediation settings, click Change settings...
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Screenshot 79: General auto-remediation settings
4. Select the action to take after receiving scan results from the agent. Click Configure auto- remediation options...
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Screenshot 80: Before deployment options
5. Configure Before Deployment options described below:
Table 50: Before deployment
Option
Wake up offline computers
Warn user before deployment (show message)
Wait for user’s approval
Messages
Description
Start computers if they are turned off. For more information, refer to Configuring Wake-on-
LAN on scan targets (page 130).
Displays a message on the target machine to warn the user before deploying software.
Wait for user’s approval Waits for user approval before deploying software.
Administrative shares
Custom shares
Remember settings
Click Messages to select the end-user’s computer language and define the warning message.
For more information, refer to Configuring auto-remediation messages (page 132).
Make a copy of the software on the default network shares.
Make a copy of the software in a custom share. Key–in the folder name in the text box.
Saves your configured settings and uses them during the next remediation job.
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Screenshot 81: After deployment options
6. Click After Deployment tab. Configure After Deployment options described below:
Table 51: After deployment
Option Description
Select this option to leave scan target(s) turned on after remediating vulnerabilities.
Do not reboot/shutdown the computer
Reboot the target computers
Shut down the target computers
Reboots the computers after remediating vulnerabilities.
Target machine will shut down after deploying software.
Reboots/shuts down computers immediately after remediating vulnerabilities.
Immediately after deployment
At the next occurrence of
When between
Specify the time when the computers reboot/shut down.
Let the user decide
Show notification before shut down for
This option enables you to specify two time values. If the remediation job is completed between the specified times, the computer(s) will reboot/shut down immediately. Otherwise, the reboot/shut down operation is postponed until the next entrance into the specified time interval.
Click Preview to view a screenshot of the dialog in the user manual. This dialog opens on the end-
Shows a custom message on the end user’s computer for a specified number of minutes before reboot/shut down.
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Option
Delete copied files from remote computers after deployment
Description
Deletes the downloaded patches / service packs after they are deployed.
Remember settings Saves your configured settings and uses them during the next remediation job.
Screenshot 82: Advanced deployment options
7. (Optional) Select Advanced tab. Configure the options described below:
Table 52: Advanced deployment options
Option Description
Number of deployment threads
Specify the maximum number of processing threads allowed to start when deploying software updates. The number of threads determines the number of concurrent deployment operations an agent can handle.
Deployment timeout (seconds)
Deploy patches under the following administrative account
Specify the time (in seconds) an agent attempts to deploy an update. If the specified time is exceeded, the agent stops the unresponsive deployment and starts a new deployment thread.
This feature enables you to stop the process thread so that if an update is taking longer than normal deployment time, the remediation operation continues without jeopardizing the rest.
Select this option to use a custom administrative account to log and deploy patches on target machines. The account selected must have Log–on as service privilege on the target computers. For more information on how to configure an account with log–on as service privilege, refer to http://go.gfi.com/?pageid=LAN_LogonService .
8. Click OK to apply changes.
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Configuring Wake-on-LAN on scan targets
Wake-on-LAN enables GFI LanGuard to wake machines from the following states:
Powered off
Sleep
Hibernated.
The motherboard and the network interface card of the computer running GFI LanGuard, must support Wake-on-LAN. To configure Wake-on-LAN on Windows
®
7:
1. Click Start, right click Computer and select Manage.
2. From the left panel, expand System Tools and click Device Manager.
Screenshot 83: Device Manager
3. Right click the Network Interface Card and select Properties.
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Screenshot 84: Power Management
4. From the Power Management tab, select the following options:
Allow this device to wake up the computer
Only allow a magic packet to wake the computer
Note
Magic Packet is the wake up signal that is sent by GFI LanGuard to the scan target network card.
5. Click OK.
Once the Network Interface Card is configured, run a FULL scan on the client machine. This enables
IMPORTANT
If you have routers between the client machine and the GFI LanGuard machine, the router and the GFI LanGuard machine must be configured to allow Wake-on-LAN broadcast packets on UDP port 9.
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8.1.5 Configuring end-user reboot and shut down options
When configuring After Deployment settings, in Auto-remediation options, you can configure GFI
LanGuard to notify and let the user decide when to reboot or shut down the computer after completing an administrative task. The below dialog opens on the user’s computer and enables him/her to select one of the following options:
Screenshot 85: Reboot/shut down options
The table below describes the available options:
Table 53: Advanced deployment options
Option Description
Restart now
Remind me in
Reboots/shuts down the computer immediately after completing an administrative task.
Specify a time interval (in minutes), when to remind the end-user.
Restart on Specify the date and time when the machine reboots/shuts down.
Don’t bother me again The user is not prompted again.
8.1.6 Configuring auto-remediation messages
GFI LanGuard enables you to automatically display warning messages before and after remediation operations. These messages are displayed on the end-users' computer and in some cases, allows them to select after deployment options, or notify them about the operations to be carried out. You can customize predefined messages and set the language according to the scan target's computer language.
To configure warning messages:
1. Launch GFI LanGuard.
2. Click Remediate tab > Remediation Center.
3. From Remediation Center, select a remediation action, such as Deploy Software Updates.
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Screenshot 86: Remediation Center - Deploy Software Updates
4. Click Remediate.
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Screenshot 87: Deployment options dialog
5. Click Advanced options.
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Screenshot 88: Before Deployment Message options
6. From the Remediation options dialog, click Before Deployment tab > Messages....
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Screenshot 89: Customizing warning messages
7. Customize any of the following options:
Table 54: Warning messages
Option
Language
When not waiting for user approval
When waiting for user approval
Description
Select the message language.
Use or customize the pre-defined message that launches on the end user’s computer when
GFI LanGuard is not waiting for approval.
Use or customize the pre-defined message that launches on the end user’s computer when
GFI LanGuard is waiting for approval.
8. Click Apply and OK.
8.1.7 Configuring Agent auto-remediation
In an agent–based environment, automatic remediation options can be set for every deployed agent.
This enables you to configure every agent with specific auto–remediation options to suit your requirements.
To configure agent auto-remediation actions:
1. Launch GFI LanGuard.
2. Click Configuration tab > Agents Management.
3. From the right pane, right–click an agent and select Properties.
4. Select the Agent Status tab and in the Auto remediation settings section click Change Settings.
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Screenshot 90: Agent auto–remediation
5. Select Download and deploy missing updates to enable automatic remediation for missing patches.
6. Select Download and deploy missing service packs and update rollups to enable automatic remediation for missing service packs.
7. Select Uninstall unauthorized applications to enable automatic remediation for unauthorized applications.
8. (Optional) Click Configure auto–remediation options… to further customize remediation options.
For more information, refer to Configuring auto-remediation options (page 125).
9. Click OK.
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8.2 Manual Remediation
Apart from automatically downloading patches and service packs, GFI LanGuard can also deploy these updates network–wide as well as recall any patches that were deployed.
Both patch deployment and patch rollback operations are managed by an agent service that manages all file transfers between GFI LanGuard and remote targets. This service is installed automatically on the remote target computer during the patch deployment process.
Manual Remediation tasks:
Review Manual Remediation important notes
Learn more about the Remediation Center
Connect remotely to a machine using GFI LanGuard.
8.2.1 Manual remediation notes
1. While an infrequent occurrence, patches may be recalled due to newly discovered vulnerabilities or problems caused by the installation of these updates such as conflict issues with present software or hardware. Examples of updates recalled by the manufacturer include patches MS03–045 and MS03–047 for Exchange that were released by Microsoft
® on October 15, 2006.
3. A complete list of Microsoft products for which GFI LanGuard can download and deploy patches is available at http://go.gfi.com/?pageid=ms_app_fullreport
4. Non–Microsoft software update patches supported by GFI LanGuard is available at http://go.gfi.com/?pageid=3p_fullreport
5. GFI LanGuard can be set to automatically download missing patches and service packs discovered
8.2.2 Using the Remediation Center
The Remediation Center enables you to fix security issues found during a network scan by deploying or uninstalling applications from target machines. To access the Remediation Center, select
Remediate tab > Remediation Center.
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Screenshot 91: Remediation center
From the left panel, expand and locate a computer or a domain to perform remediation actions. The available remediation actions are described below:
Table 55: Remediation actions
Action Description
Deploy Software Updates
Uninstall Software
Updates
Uninstall service packs from target computers. For more information, refer to Uninstalling
Deploy Custom Software
Uninstall Applications
Deploy custom applications and scripts on target computers. For more information, refer to
Deploying Custom Software (page 144).
Uninstall applications from target computers. For more information, refer to Uninstalling
Custom Applications (page 145).
Malware Protection
Remote Support via
Remote Desktop Connection
Perform Malware protection actions on target computers. For more information, refer to
Malware Protection (page 147).
Connect to a target machine and perform administrative tasks using remote desktop con-
nection. For more information, refer to Using Remote Desktop Support (page 149).
8.2.3 Deploying Software Updates
Use the Deploy Software Updates feature to manually deploy:
Missing Service Packs and Update Rollups
Missing Security Updates
Missing Non-Security Updates.
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This feature enables you to specifically select the items you want to deploy and provides you with a detailed description for each.
Note
To view additional information about an update, right-click on an update and select
More details > Bulletin info...
To manually deploy software updates:
1. Launch GFI LanGuard.
2. Click Remediate tab and expand Deploy Software Updates.
Screenshot 92: Deploying software updates
3. From the computer tree, select the computer/group where to deploy software updates.
4. From the List of missing updates, select the updates to deploy.
Note
Use the search bar to look for specific missing updates or use the filtering options for each column heading to view the required data only.
5. Click Remediate.
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Screenshot 93: Deploy software updates options
6. The Deploy software updates dialog, enables you to edit deployment options before starting the deployment operation. Review the options described below:
Table 56: Deploy software updates options
Option
Deploy immediately
Description
Selected by default. Leave selected to deploy missing updates immediately.
Deploy on Specify a date and time when to deploy missing updates .
Credentials
Before deployment options
Provides you with the credentials settings for updates. Click Customize to change settings .
Provides you with the actions taken before deploying software updates. Click Customize to edit the before deployment message, and the type of share created to transfer updates and scan details files.
After deployment options
Advanced options
Provides you with the actions taken after deploying missing software updates. Click Customize to configure whether the computer(s) reboot, shutdown or display a message to the end-user.
Click Advanced options to configure the:
Number of deployment threads. Maximum = 10
Deployment timeout
Alternate credentials.
7. Click OK to start deploying updates. You are automatically taken to the Remediation Jobs tab where you can monitor the progress of the deployment operation.
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8.2.4 Uninstalling Software Updates
The Uninstall Software Updates feature enables you to manually remove:
Installed Service Packs and Update Rollups
Installed Security Updates
Installed Non-Security Updates.
To manually uninstall software updates:
1. Launch GFI LanGuard.
2. Click Remediate tab and expand Uninstall Software Updates.
Screenshot 94: Uninstalling software updates
3. From the computer tree, select the computer/group where to uninstall software updates.
4. From the List of installed updates, select the updates you want to uninstall.
Note
Use the search bar to look for specific installed updates or use the filtering options for each column heading to view the required data only.
5. Click Remediate.
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Screenshot 95: Uninstall software updates options
6. The Uninstall software updates dialog, enables you to edit uninstall options before starting the uninstall operation. Review the options described below:
Table 57: Uninstall software updates options
Option
Uninstall immediately
Description
Selected by default. Leave selected if you want to uninstall updates immediately.
uninstall on Specify a date and time for when updates are uninstalled.
Credentials
Before deployment options
After deployment options
Advanced options
Provides you with the credentials settings that are used to uninstall updates. Click Customize to change settings and use alternate credentials.
Provides you with the actions taken before uninstalling software updates. Click Customize to edit the before deployment message, and shares mode used to transfer updates.
Provides you with the actions taken after uninstalling software updates. Click Customize to configure whether the computer(s) reboot, shutdown or display a message to the end-user.
Click Advanced options to configure the:
Number of deployment threads. Maximum = 10
Deployment timeout
Alternate credentials.
7. Click OK to start uninstalling the selected updates. You are automatically taken to the
Remediation Jobs tab where you can monitor the progress of the uninstall operation.
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8.2.5 Deploying Custom Software
Apart from security updates and patches, GFI LanGuard also enables you to remotely deploy third party or custom software network–wide. Software that can be remotely deployed includes:
Security applications such as anti–virus/anti–spyware solutions and software firewalls
Third party software updates and patches such as anti–virus/anti–spyware signature file updates
Custom code such as scripts and batch–files
Desktop applications such as Microsoft
®
Office 2007 and more.
To specify which software to deploy:
1. Click on Remediate tab > Remediation Center.
2. From the computer tree, select the computers where the new software will be deployed and click
Deploy Custom Software.
Screenshot 96: List of software to be deployed
3. Use the options described in below to add the applications to deploy:
Table 58: Options available in Deploy Custom Software
Option Description
Add Click this button to launch the Add custom software dialog. This dialog enables you to add an application to the list and if required configure parameters.
Edit Select an application and click this button to launch the Add custom software dialog. This dialog enables you to modify the existing installation parameters.
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Option Description
Remove Select an application from the list and click this button to remove the application.
Import Click this button to import the applications parameters from an XML file.
Export Click this button to export the applications parameters to XML file.
4. Click Deploy and configure the options described below:
Table 59: Deployment options
Option Description
Deploy immediately
Deploy the selected applications immediately.
Deploy on Deploy the selected applications on a specific date and time. Configure when to deploy the applications.
Credentials Select the authentication method to use or specify a username and password. Select Use per computer
Before deployment options
After deployment options
Advanced options
Configure other options related to reboot/shut down and delete copied files from remote computers.
For more information, refer to Configuring auto-remediation options (page 125).
5. Click OK.
6. To view the deployment progress, click Remediation Jobs from the right panel.
8.2.6 Uninstalling Custom Applications
Using this feature, you can control the installed applications, on which computers, and uninstall any unauthorized applications present on network computers.
To uninstall applications:
1. Select Remediate tab > Remediation Center and click Uninstall Applications.
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Screenshot 97: Uninstall applications
2. Expand the application to display the list of computers and select the computers where the application will be uninstalled.
Note
The list of applications displayed relies on the unauthorized applications set up for the
3. Repeat step 2 for all applications that will be uninstalled and click Uninstall.
Note
Key in a criteria and click Find to search a vulnerability. Click Clear to clear previous search results.
4. Configure the options described below:
Table 60: Uninstall applications
Option Description
Uninstall immediately
Uninstall the selected applications immediately.
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Option Description
Uninstall on Uninstall the selected applications on a specific date and time. Configure when to uninstall the applications.
Credentials Select the authentication method to use or specify a username and password. Select Use per computer
Before deployment options
After deployment options
Advanced options
Configure other options related to reboot/shut down and delete copied files from remote computers.
For more information, refer to Configuring auto-remediation options (page 125).
5. Click OK.
6. To view the un–installation progress, click Remediation Jobs from the right panel.
8.2.7 Malware Protection
Use the Malware Protection section to remediate vulnerabilities related to malware protection identified on target computers. Amongst others, this section enables you to scan target machines for spyware, viruses and enable local firewall.
Note
To scan a machine for viruses and spyware, the target machine must have anti–virus and anti–spyware installed.
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Screenshot 98: Malware protection
To remediate malware protection vulnerabilities:
1. Select Remediate tab > Remediation Center and click Malware Protection.
2. Locate and expand the malware vulnerability and select the computers to remediate.
Note
Key in a criteria and click Find to search a vulnerability. Click Clear to clear previous search results.
3. Click Remediate and configure the options described below:
Table 61: Deployment options
Option Description
Deploy immediately
Deploy the selected applications immediately.
Deploy on Deploy the selected applications on a specific date and time. Configure when to deploy the applications.
Credentials Select the authentication method to use or specify a username and password. Select Use per computer
Before deployment options
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Option
After deployment options
Advanced options
Description
Configure other options related to reboot/shut down and delete copied files from remote computers.
For more information, refer to Configuring auto-remediation options (page 125).
4. Click OK.
5. To view the action progress, click Remediation Jobs from the right panel.
8.2.8 Using Remote Desktop Support
Through Remote Support, you can control remote computers using Terminal Services and Remote
Desktop Protocol. Remote Support enables you to install missing patches, service packs and custom software through a remote connection.
Screenshot 99: Remote desktop connection
To connect remotely to a target machine:
1. Click Remediate tab and from the left panel select a computer or domain/workgroup.
2. Expand Remote Support via Remote Desktop Connection from the right panel.
3. Depending on your selection, the list contains the available computers that allow remote desktop connection.
4. Double-click a machine from the list to connect.
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Note
To disconnect a machine, select Remediation Center >Remote Support via…, right– click a machine from the list and select Disconnect.
Note
To disable remote connection, right click a machine and select Disable Remote
Connection.
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9 Activity Monitoring
Monitoring enables you to learn more about how GFI LanGuard is performing in your infrastructure.
The Activity Monitor tab in GFI LanGuard enables you to monitor active security scans, remediation jobs and download operations of missing updates and security definitions.
Topics in this chapter:
9.2 Monitoring Software Updates Download
9.3 Monitoring Remediation Operations
9.4 Monitoring Product Updates
9.1 Monitoring Security Scans
The Security Scans section enables monitoring of all the security scans that are currently in progress.
To monitor active security scans:
1. Launch GFI LanGuard.
2. Click Activity Monitor tab and from the left panel click Security Scans.
Screenshot 100: Monitoring security scans
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Note
To stop a scan right–click the security scan and select Stop selected scans.
Note
Drag and drop a column header in the designated area to group data by criteria.
9.1.1 Filter Security Scans
The Security Scan section enables you to configure what type of scans to monitor. To configure what type of scans are displayed:
1. Launch GFI LanGuard.
2. Click Activity Monitor tab and from Common Tasks, click Filter security scans.
Screenshot 101: Filter security scan dialog
3. Configure the options described below:
Table 62: Filter security scan dialog
Option Description
All scans Displays all scans.
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Option
Only last X scans
Only scans performed in the last X days
Interactive scans
Scheduled scans
Agent scans
Description
Displays only the last X scans.
Displays only the scans performed in the last X days.
Displays only manual scans. For more information, refer to Manual scans (page 66).
Displays only scheduled scans. For more information, refer to Scheduled scans (page 70).
4. Click OK.
9.2 Monitoring Software Updates Download
The Software Updates Download screen enables you to monitor, pause, cancel or change priority to all the scheduled patch downloads.
Screenshot 102: Security updates download
The icon in the first column indicates the download status. The table below describes the different states:
Table 63: Updates download status
Icon Description
Downloaded
Update downloaded successfully.
Downloading
Update is being downloaded.
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Icon Description
Failed
An error occurred while downloading the update. Refer to Error column for more details regarding the error encountered.
Pending
Update is queued for download.
Cancelled
User cancelled update download.
Right–click an entry and select one of the options described below:
Table 64: Security updates download
Option Description
Configure Patch
Auto–Download
Enables or disables auto–patch download and used to configure where the patches are stored. For more information, refer to
.
Edit proxy settings…
Change download priority…
Cancel selected downloads
Pause all downloads
Change the download priority. Select between, High, normal or low priority.
Stop and remove the selected download.
Temporarily pause all downloads.
9.2.1 Troubleshooting failed Software Updates
This section provides you with information about three software update errors, which are likely to cause software updates to fail from downloading and/or installing.
The table below provides you with the actual error message that you will receive if one of the errors has to occur and a possible cause and solution, for each:
Table 65: Troubleshooting failed Software Updates
Error Message Cause
The file URL points to a different file than expected. Try re-scanning with the latest program updates
The Third-Party vendor replaces old patches with updated patches, using the same URL. GFI has no control over how Third-Party vendors replace updates and URLs.
Solution
Download the latest Product Updates manually and re-
scan your targets. For more information, refer to Configuring Program Updates (page 184).
Note
There is a 12 to 24 hour delay between Third-Parties releasing new updates and GFI LanGuard adding support for them. During this time, you will continue to receive the error message, even though you download and scan your targets using the latest product updates.
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Error Message
The repository folder is not accessible. See Configuration - Patch
Auto-download
Internet connection not available
Cause
The repository folder is the location where updates are downloaded to. GFI LanGuard enables you to specify alternate repositories than the default location.
This error is generally caused after specifying an invalid or inaccessible repository path
(example, the given path refers to a location on a shutdown computer).
The computer where GFI LanGuard is installed, does not have Internet access.
There are many possible causes to this problem.
Solution
1. Manually check that you can access the folder path, using the same logon credentials.
2. Ensure that the specified path is a valid:
Local path - example: C:\Share or C:\Folder
UNC path - example: \\NetworkShare\Folder
3. Ensure that the path is keyed in correctly.
Note
For more information, refer to Configuring Patch
Auto-download settings, from
Establish an Internet connection and attempt to download the failed updates.
9.3 Monitoring Remediation Operations
Remediation operations can be monitored from the following places:
9.3.1 Remediation Jobs sub-tab
The Remediation Jobs section enables you to monitor the remediation actions currently in progress.
To view remediation jobs in progress:
1. Launch GFI LanGuard.
2. Click Remediate tab > Remediation Jobs sub-tab.
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Screenshot 103: Monitoring jobs from the Remediation jobs sub-tab
3. From the computer tree, select Entire Network to view all the running, as well as completed operations. Select specific computers/groups to view remediation jobs history and/or remediation progress for the selected item(s).
Note
Right-click a remediation job and select Cancel selected deployment to stop the operation.
Note
Right-click a remediation job and select Go to associated schedule scan to view the pre-configured scan which triggered the remediation.
Note
The Remediation job details section provides you with granular progress details indicating the total number of files that have to be downloaded, download progress for each file and the current operation being executed as part of the remediation job.
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9.3.2 Remediation Operations view
The remediation operations screen enables you to monitor as well as cancel all the scheduled remediation features within GFI LanGuard.
To view remediation job activity:
1. Launch GFI LanGuard.
2. Click Activity Monitor > Remediation Operations.
Screenshot 104: Monitoring jobs from the Remediation Operations view
3. Use the view to monitor the status and history of all the running and complete remediation jobs.
Note
Right-click a remediation job and select Cancel selected deployment to stop the operation.
Note
Right-click a remediation job and select Go to associated schedule scan to view the pre-configured scan which triggered the remediation.
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Note
The Remediation job details section provides you with granular progress details indicating the total number of files that have to be downloaded, download progress for each file and the current operation being executed as part of the remediation job.
9.4 Monitoring Product Updates
The Product Updates Activity screen enables you to view a history of the product updates,
performed by GFI LanGuard. For more information, refer to Configuring Program Updates (page 184).
Screenshot 105: Product updates activity
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10 Reporting
GFI LanGuard includes a reporting module which enables you to generate text and graphical reports based on information obtained from network security scans. This chapter provides you with an overview of the available reports as well as how to create your own reports for a tailored solution.
Through the Reports tab, you are able to generate technical activity reports for IT staff and also executive reports that normally contain less technical details and focus more on overall statistics.
Topics in this chapter:
10.4 Customizing default reports
10.1 Available reports
This section provides you with information about the reports that are available by default in the
Reports tab of GFI LanGuard. There are two main types of reports:
General Reports - provide detailed technical reports as well as executive summary reports about
LAN security and patch management activity
Legal Compliance Reports - provide system and network audit information that enable you to be compliant with standards, laws and regulations related to corporate network usage and management conventions.
Refer to the following sections for information about:
Available legal compliance reports
10.1.1 General reports
To view General reports:
1. Click Reports tab.
2. From the list of reports, expand General and select any of the following reports:
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Table 66: Available General Reports
Report Title Description
Network Security Overview
An executive summary report showing:
Network vulnerability level
Most vulnerable computers
Agent status
Computer Security Overview
Vulnerability
Status
Audit status
Vulnerability trends over time
Information on operating systems
Servers and workstations.
An executive summary report showing:
Computer vulnerability level
Agent status
Audit status
Vulnerability trends over time
Computer summary and details.
Shows statistical information related to the vulnerabilities detected on target computers.
Vulnerabilities can be grouped by:
Computer name
Vulnerability severity
Timestamp
Category.
Patching Status Shows statistical information related to missing and installed updates detected on your scan targets.
Updates can be grouped by name, severity, timestamp, vendor and category. Use this report to get:
Missing vs. Installed updates comparison
Missing Microsoft
®
Security
Updates
Charts and tables displaying missing updates distribution for each item from the first and second grouping criteria
Charts and tables displaying installed updates distribution for each item from the first and second grouping criteria
Patching details for missing and installed patches.
Shows statistical information related to missing Microsoft ® security updates, detected on your scan targets. Select items to include in your report:
General missing updates distribution chart
Distribution table
Missing Non-
Microsoft
®
Security Updates
Vulnerability list.
Shows statistical information related to missing non-Microsoft
® security updates, detected on your scan targets. Select items to include in your report:
General missing updates distribution chart
Distribution table
Missing Security
Updates
Vulnerability list.
Lists statistical information related to missing security updates, found on scanned computers.
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Report Title
Full Audit
Computer Summary
Description
A technical report showing information retrieved during an audit. Amongst others, the report contains information on:
Vulnerabilities
Open ports
Hardware and software.
A summary of scan target information, including:
Operating system information
Agent status
Vulnerabilities severity.
Hardware Audit Illustrates information related to the hardware found during an audit.
Computer
Details
Provides a detailed list of computer properties, including:
MAC Address
Time to Live
Network Role
Domain
Lan Manager
Is relay agent
Uses relay agent
Attributes
Operating system
Open Shares
Open Ports
Scan Based –
Full Audit
Last Scan Summary
Last Scan
Details
IP address.
Lists all the shared folders found during an audit. The results are grouped by computer name.
Lists all the open ports found during an audit. The result are grouped by port type (TCP and UDP).
A technical report showing information retrieved during a specified scan. The report contains full details of the scanned computers and also auto–remediation performed after that scan.
A technical report containing the summary of the information retrieved during the last scan.
Last Auto–remediation
Last Scan Security Changes
A technical report containing all the information during the last scan. The report contains full details for the scanned target.
A technical report containing all the information related to auto–remediation performed after the last scan.
Shows all changes detected during the last scan.
Software Audit Shows all unauthorized applications installed on target machines found during an audit. Amongst others, the report includes information on:
Antivirus
Anti–spyware
Applications inventory.
Lists all unauthorized applications installed scan targets.
Unauthorized
Applications
Antivirus Applications
Shows information related to the antivirus installed on scan targets.
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Report Title
Scan History
Remediation
History
Network Security History
Baseline Comparison
Description
An overview of the network security audits performed over time. Amongst others, the report includes information on:
Most scanned computers
Least scanned computers
Auditing status
History listing.
Shows information related to remediation actions performed on target computers. Amongst others, the report includes information on:
Remediation actions per day
Remediation distribution by category
Remediation list grouped by computers.
Shows the changes done on scan targets between audits. Amongst others, the report includes changes related to:
The vulnerability level
User accounts
Groups
Ports
Shares
Registry entries.
Enables you to compare the results of all scan targets to a base computer. From the drop down list select the base computers and click Generate. The results are grouped by computer name and amongst others includes information on:
Registry
Installed Service Packs and Update Rollups
Missing Security/Non-Security Updates
Vulnerability level.
10.1.2 Legal Compliance reports
To view Legal Compliance reports:
1. Click Reports tab.
2. From the list of reports, expand any of the following compliance reports suites and select the report you want to generate:
Table 67: Available Legal Compliance Reports
Report Suite Title Description
PCI DSS Compliance
Reports
The Payment Card Industry Data Security Standard (PCI DSS) is an information security standard for organizations that handle cardholder information for the major debit, credit, prepaid, epurse, ATM, and POS cards. GFI LanGuard provides you with a number of reports that cater for PCI
DSS compliance, including:
PCI DSS Requirement 1.4 - Installed Firewall Applications
PCI DSS Requirement 2.2.3 - Disk Encryption Applications
PCI DSS Requirement 5.2 - Antivirus Applications
PCI DSS Requirement 6.1 - Remediation History by Date
PCI DSS Requirement 12.12 - Open Trojan Ports by Host.
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Report Suite Title Description
HIPAA Compliance
Reports
The Health Insurance Portability and Accountability Act (HIPAA) is a requirement of all healthcare providers that regulates the exchange of private patient data. This helps prevent unlawful disclosure or release of medical information. To help you follow HIPAA regulations, GFI
LanGuard provides you with a suite of HIPAA compliance reports, including:
HIPAA 164.308(a)(1)(ii)(A) - Missing Security Updates by Host
HIPAA 164.308(a)(1)(ii)(A) - Vulnerability Distribution by Host
HIPAA 164.308(a)(4)(ii)(A) - Open Ports
SOX Compliance
Reports
HIPAA 164.308(a)(5)(ii)(D) - Audit Policy
HIPAA 164.308(a)(8) - Baseline Changes Comparison.
The Sarbanes-Oxley Act (SOX) is regulation created in response to high-profile financial scandals as well as to protect shareholders and the general public from accounting errors and fraudulent practices in the enterprise. GFI LanGuard provides a list of SOX compliance reports, including:
SOX 302.a - Network Vulnerability Summary
GLBA Compliance
Reports
PSN CoCo Compliance Reports
FERPA Compliance
Reports
SOX 302.a - Remediation History by Host
SOX 302.a - Security Scans History
SOX 404 - Vulnerability Listing by Category
SOX 404 - Missing Security Updates by Host.
The Gramm–Leach–Bliley Act (GLBA) is an act that allows consolidation between Banks and
Insurance companies. Part of the act focuses on IT network compliance for such companies. GFI
LanGuard offers a list of GLBA Compliance reports, including:
GLBA 501.b - Baseline Changes Comparison
GLBA 501.b - Network Patching Status
GLBA 501.b - Open Trojan Ports by Host
GLBA 501.b - Vulnerable Hosts Based on Open Ports
GLBA 501.b - Vulnerable Hosts by Vulnerability Level.
The Public Service Network - Code of Connection (PSN CoCo) is simply a list of conditions that should be met before connecting an accredited network to another accredited network. GFI
LanGuard helps you monitor the status of such connections through the list of PSN CoCo
Compliance reports, which include:
PSNCoCo RIS. 1 - Baseline Changes Comparison
PSNCoCo MAL. 1 - Disk Encryption Applications
PSNCoCo MAL. 1 - Installed Firewall Applications
PSNCoCo PAT. 1 - Installed Security Updates by Host
PSNCoCo PAT. 1 - Installed Security Updates by Severity.
The Family Educational Rights and Privacy Act (FERPA) is a Federal law that protects the privacy of student education records. The law applies to all schools that receive funds under an applicable program of the U.S. Department of Education. GFI LanGuard provides a list of FERPA
Compliance reports, including:
FERPA 20 USC 1232g (b) - Network Patching Status
FERPA 20 USC 1232g (b) - Network Security Log by Host
FERPA 20 USC 1232g (b) - Remediation History by Date
FERPA 20 USC 1232g (b) - Vulnerability Distribution by Host
FERPA 20 USC 1232g (b) - Vulnerable Hosts Based on Open Ports.
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Report Suite Title Description
ISO/IEC 27001 &
27002 Compliance
Reports
The Information technology – Security techniques – Information security management systems
(ISO/IEC) standard formally specifies a management system that is intended to bring information security under explicit management control. GFI LanGuard offers an extensive list of ISO/IEC
Compliance reports, including:
ISO/IEC 27001 A. 10.4 - Antivirus Applications
ISO/IEC 27001 A. 10.7.2 - Disk Encryption Applications
ISO/IEC 27001 A. 10.6.2 - Open Shares
FISMA Compliance
Reports
ISO/IEC 27001 A. 10.6.2 - Services
ISO/IEC 27001 A. 10.6.2 - System Information.
The Federal Information Security Management Act (FISMA) assigns specific responsibilities to federal agencies, the National Institute of Standards and Technology (NIST) and the Office of
Management and Budget (OMB) in order to strengthen information system security. In particular,
FISMA requires the head of each agency to implement policies and procedures to cost-effectively reduce information technology security risks to an acceptable level. GFI LanGuard helps you be compliant to FISMA standards through the provided reports, which include:
FISMA NIST SP 800-53 AC-2 - Groups and Users
FISMA NIST SP 800-53 PM-5 - Computer Details
FISMA NIST SP 800-53 PM-5 - Computer Summary
CAG Compliance
Reports
NERC CIP Compliance Reports
FISMA NIST SP 800-53 SI-5 - Missing Security Updates by Host
FISMA NIST SP 800-53 SI-7 - Antivirus Applications.
The Consensus Audit Guidelines (CAG) is a publication of best practice guidelines for computer security. The project was initiated as a response to extreme data losses experienced by organizations in the US defense industrial base. GFI LanGuard offers a list of CAG Compliance reports, including:
CAG CC1 - Hardware Audit
CAG CC1 - Scan History
CAG CC3 - Audit Policy
CAG CC3 - Low Security Vulnerabilities
CAG CC11 - Open Ports.
The North American Electric Reliability Corporation (NERC) develops standards for power system operation, monitoring and enforcing compliance with those standards, assessing resource adequacy, and providing educational and training resources as part of an accreditation program to ensure power system operators remain qualified and proficient. GFI LanGuard provides a list of
NERC CIP Compliance reports, including:
NERC CIP-005 R2 - Installed Firewall Applications
NERC CIP-005 R2 - Open Ports
NERC CIP-007 R2 - Open Shares
NERC CIP-007 R2 - Services
NERC CIP-007 R2 - System Information.
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10.2 Generating reports
GFI LanGuard ships with an extensive list of default reports. These can be used as they are, or modified to provide information precisely to your requirements.
Note
For more information, refer to Customizing default reports (page 170).
To generate a report:
1. Click Reports tab.
2. From the computer tree, select the computer/group you want to report on.
Note
Select Entire Network to report on all the computers listed under the computer tree.
3. From the reports list, select the report you want to generate.
4. (Optional) From the right pane, click Customize report if changes to report items are required.
5. Click Generate report.
Screenshot 106: Report sample - Part 1
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Screenshot 107: Report sample - Part 2
Screenshot 108: Report sample - Part 3
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10.3 Scheduling Reports
To automate reporting tasks, GFI LanGuard enables you to generate and optionally send reports, based on a schedule. You can configure schedules for existing or custom reports.
This section contains information about:
Creating new scheduled reports
Configuring scheduled reports options
10.3.1 Creating new scheduled reports
To create a new scheduled report:
1. Click Reports tab.
2. From Actions, select New scheduled report.
Screenshot 109: Select scheduled report template
3. From the Report Template section, configure the following options:
Table 68: Scheduled report template options
Option Description
Schedule Report
Template
Select an existing report from the drop-down menu. This enables you to create a new report based on the settings of an existing one.
Schedule Report
Name
Schedule Report
Description
Key in a unique name for the new report.
Optionally, key in some information about the report such as report items or schedule settings.
Screenshot 110: Add or remove target domains and/or computers
4. From the Target Domains & Computers section, configure the following options:
Table 69: Target Domains & Computers options
Option Description
From the computer tree, select a domain or workgroup and click Add Domain. The selected domains/workgroups are added to the report.
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Option Description
Click Add IP to open the Add IP address range dialog. From the Add IP address range dialog, key in an IP range or Subnet and click OK.
Select the Domain/Workgroup/IP range you want to remove and click Remove Domain/IP.
5. From the Filter drop-down menu, select a filter that you want to apply to the new scheduled report. This enables you to generate reports based on data pertaining to scan targets included in the filter.
Note
Only custom filters can be applied to scheduled reports. For more information, refer to
Using the Dashboard (page 84).
6. From Scheduling Settings, configure the following options:
Table 70: Scheduling options
Option Description
Enable Schedule Select to turn on report scheduling and generate the report according to schedule settings.
One time only, on
Recurrence pattern
Specify a date and time when the report is generated. This option generates the report once, on the specified date.
Select recurrence frequency and specify the time the scheduled report is generated.
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7. From Alerting & Saving Settings, configure the following options:
Table 71: Alerting & Saving Settings
Option
Export to file
Export Settings
Send by email
Alerting Options
Override general alerting options, and send email to
Description
Select to save the report in a folder.
Click Export Settings and from the Scheduled Reports Storage Options dialog, specify the folder where the report is saved and the format the report is saved in.
Select to send report by email. The report is sent to recipients configured in Alerting
Options.
Select to use email recipients other than the ones configured in Alerting Options.
8. Click Add Schedule to save the report.
Note
10.3.2 Configuring scheduled reports options
To configure additional scheduled reports settings:
1. From the Scheduled Reports section, click Scheduled Reports Options.
3. Click Storage Options to specify the format and the location where generated reports are saved.
Note
By default, all generated reports are stored as PDF in: <GFI LanGuard install directory>\Reports .
10.3.3 Managing scheduled reports
To manage scheduled reports:
1. Click Reports tab.
2. From Scheduled Reports, click Scheduled Reports List.
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Screenshot 111: Edit scheduled reports options
3. Double-click a report from the right pane to edit schedule report settings.
Screenshot 112: Monitor scheduled reports activity
4. Monitor schedule reports activity from the Scheduled Reports Activity Logs section at the bottom of the right pane.
10.4 Customizing default reports
GFI LanGuard enables you to create new reports based on the settings of an existing report. This saves you time and enables you to fine-tune existing reports, so that the data-set used to build the report precisely matches your requirements.
This section contains information about:
Customizing Email Report Format
10.4.1 Creating custom reports
To create a custom report:
1. Click Reports tab.
2. From the Reports list, select an existing report on which settings of the new reports are based on.
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Note
Not all reports are editable.
Screenshot 113: Edit report settings from the report sample preview
3. From the right pane, click Customize report to show advanced report options.
Screenshot 114: Configuring report items
4. Click Report Items tab and select the related items that you want to include in the report.
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Screenshot 115: Configuring report filtering options
5. Click Filters tab and configure the available filters that relate to the report.
Screenshot 116: Configure report grouping and sorting options
6. Click Grouping & Sorting tab and configure:
First category grouping - report information is grouped by the selected field
Second category grouping - grouped information is sub-grouped by the selected field
Additional ordering - order report information according to the selected field.
7. Click Save as new report...
8. From the Add report dialog, key in a name and an optional description for the new custom report.
Click OK.
10.4.2 Customizing report logos
GFI LanGuard enables you to use your company/custom logo in the built–in reports included in the product. Logos can be placed in the header or footer sections of the report.
Customizing Report Header Logo
1. Create / select your image.
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2. Resize image to: Width = 624, Height = 25.
3. Rename the image to headerlogo.png.
4. Copy / paste image in <GFI LanGuard install directory> \ Graphics \ Logo.
Customizing Report Footer Logo
1. Create / select your image.
2. Resize image to: Width = 109, Height = 41.
3. Rename the image to footerlogo.png.
4. Copy / paste image in <GFI LanGuard install directory> \ Graphics \ Logo.
10.4.3 Customizing Email Report Format
For each scheduled email report type, there is a predefined HTML format file that includes placeholders delimited with ‘%’ symbol (for example: %TITLE%, %NAME%). You can edit the HTML format, edit HTML style, move and delete placeholders to further customize the e mail body of generated reports. The default template location is: <GFI LanGuard install directory> \
LanGuard 11 \ Templates \ template_mailbody.xml
.
Take into consideration that GFI LanGuard can only manage known placeholders (listed below) with their predefined role. Placeholders are usable in all scheduled report types. The table below describes the customizable placeholders:
Table 72: Report placeholders
Placeholder
%TITLE%
%NAME%
%DESCRIPTION%:
%TARGET%
%LAST_RUN%
%NEXT_RUN%
Description
Email title for the generated report.
Scheduled report name.
Scheduled report description.
Targets (computers, domains) represented in the scheduled report.
Last run date and time of the scheduled report.
Next run date and time of the scheduled report.
%PROFILE%
%DURATION%
%ITEMS_COUNT%
%AUTOREMED_MISS-
INGPATCHES%
Note
This placeholder is used only for daily digest reports.
Scanning profile used whilst running the scheduled scan.
Note
This placeholder is used only for post–scheduled scan reports.
Scheduled scan duration.
Note
This placeholder is used only for post–schedules scan reports.
Collected items count.
Note
This placeholder is used only for post–scheduled scan reports.
Used in the report if Auto–remediate Missing Patches option is enabled for the scheduled scan.
Note
This placeholder is used only for post–scheduled scan reports.
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Placeholder Description
%AUTOREMED_MISSINGSPS% Used in the report if Auto–remediate Missing Service Packs option is enabled for the scheduled scan.
Note
This placeholder is used only for post–scheduled scan reports.
%AUTOREMED_UNINSTAPPS% Used in the report if Auto–remediate Uninstall Applications option is enabled for the scheduled scan.
Note
This placeholder is used only in post–scheduled scan reports.
10.5 Full text searching
The full text search feature returns results in a structured and configurable manner. Any returned results offer clickable links for further details.
To use the full text search feature:
1. Click Reports tab > Search sub-tab.
Note
Search can also be accessed from Computer tree> Search.
2. Enter you search item and click Search.
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Screenshot 117: Customize the report parameters
3. (Optional) Click Advanced search to configure filters to narrow your search results to something more specific.
4. Analyze the search results from the results section at the bottom.
The result contains links that enable you to navigate between computers, software products and vulnerabilities. For example, you can click a missing service pack link to open the missing patches for a specific computer.
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Screenshot 118: Navigate using report links
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11 Customizing GFI LanGuard
GFI LanGuard enables you to run vulnerability scans straight out of the box – using the default settings configured prior to shipping. If required you can also customize these settings to suit any particular vulnerability management requirements that your organization might need. You can customize and configure various aspects of GFI LanGuard including scan schedules, vulnerability checks, scan filters and scan profiles.
Topics in this chapter:
11.1 Configuring Alerting Options
11.2 Configuring Database Maintenance Options
11.3 Configuring Program Updates
11.1 Configuring Alerting Options
To configure alerting options:
1. Click Configuration tab > Alerting options.
2. Click the link in the right pane.
Screenshot 119: Configuring Alerting Options
3. Key–in the parameters described below:
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Table 73: Mail settings parameters
Option Description
To
CC
The recipient email address. Emails sent by GFI LanGuard are received by this email address.
Key–in another email address in this field if you need to send a copy to another email address.
From
Server
Port
SMTP Server requires login
The sender email address. GFI LanGuard will use this email account to send the required emails.
Defines the server through which emails are routed. This can be either an FQDN (Fully Qualified
Domain Name) or an IP Address.
Defines the IP port through which emails are routed. Default value is 25
Select this option if the SMTP server requires a username and password to authenticate.
4. Click on the Verify Settings button to verify email settings.
5. Select Notifications and configure the following options:
Table 74: Notifications options
Option
Enable daily digest
Report format
Send an email on new product news
Description
Receive daily report with all changes made on the entire network. Configure the time when the daily digest email is received.
Specify the report format received by email.
Receive an email containing new product news.
6. Click OK.
11.2 Configuring Database Maintenance Options
GFI LanGuard ships with a set of database maintenance options through which you can maintain your scan results database backend in good shape.
For example, you can improve product performance and prevent your scan results database backend from getting excessively large by automatically deleting scan results that are older than a specific number of months.
If you are using an Access
™ database backend, you can also schedule database compaction.
Compaction enables you to repair any corrupted data and to delete database records marked for deletion in your database backend; ensuring the integrity of your scan results database. The following sections provide you with information about:
Configure advanced database maintenance options
Configure database retention options
11.2.1 Using Access™ as a database backend
GFI LanGuard supports both Access
™ and SQL Server
®
(2000 or higher) based database backend.
To store scan results in an Access
™ database:
1. Click Configuration tab > Database Maintenance Options > Database backend settings.
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Screenshot 120: The database maintenance properties dialog
2. Select the MS Access option and specify the full path (including the file name) of your Access
™ database backend.
Note
The specified database file is created if it does not exist.
Note
If the specified database file already exists and belongs to a previous version of GFI
LanGuard, you are asked to over–write the existing information.
3. Click OK.
11.2.2 Using SQL Server
®
as a database backend
To store scan results in an SQL Server
® database:
1. Click Configuration tab > Database Maintenance Options > Database backend settings.
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Screenshot 121: SQL Server
® database backend options
2. Select the MS SQL Server option and choose the SQL Server that will be hosting the database from the provided list of servers discovered on your network.
3. Specify the SQL Server credentials or select the Use NT authority credentials option to authenticate to the SQL server using windows account details.
4. Click OK to finalize your settings.
Note
If the specified server and credentials are correct, GFI LanGuard will automatically log on to your SQL Server and create the necessary database tables. If the database tables already exist, it will re–use them.
Note
When using NT authority credentials, make sure that GFI LanGuard services are running under an account that has both access and administrative privileges on the SQL Server databases.
5. Click Yes to stop all current scans.
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6. If the current Access
™ database contains data, click OK to transfer all scan data to the SQL Server
® database.
11.2.3 Managing saved scan results
Use the Saved Scan Results tab to maintain your database backend and delete saved scan results that are no longer required. Deletion of non–required saved scan results can be achieved manually as well as automatically through scheduled database maintenance.
During scheduled database maintenance, GFI LanGuard automatically deletes saved scan results that are older than a specific number of days/weeks or months. You can also configure automated database maintenance to retain only a specific number of recent scan results for every scan target and scan profile.
Screenshot 122: Database maintenance properties: Managed saved scan results tab
To manage saved scan results:
1. Click on the Configuration tab > Database Maintenance Options > Manage saved scan results.
2. To delete saved scan results, select the particular result(s) and click Delete Scan(s).
3. To let GFI LanGuard manage database maintenance for you, select Scans generated during the
last to delete scan results, which are older than a specific number of days/weeks, or months or Scans
per scan target per profile in number of to retain only a specific number of recent scan results.
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11.2.4 List scanned computers
GFI LanGuard maintains a global list of scanned computers for licensing purposes. Any computers in excess of what is specified in the licensing information are not scanned.
GFI LanGuard enables systems administrators to delete scanned computers in order to release licenses that were previously utilized.
To delete computers previously scanned:
1. Click Configuration tab > Database Maintenance Options > Manage list of scanned computers.
2. Select the computers to delete and click Delete selected computer(s).
IMPORTANT
Deleting computers from the database is a one–way operation that will also delete all computer related data from the database. Once deleted, this data is no longer available.
11.2.5 Configure advanced database maintenance options
GFI LanGuard enables you to repair and compact the Access
™ database backend automatically to improve performance.
During compaction, the database files are reorganized and records that have been marked for deletion are removed. In this way, you can regain used storage space. During this process, GFI
LanGuard also repairs corrupted database backend files. Corruption may occur for various reasons. In most cases, a Access
™ database is corrupted when the database is unexpectedly closed before records are saved (for example, due to a power failure, unresponsive operations forced reboots, and so on).
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Screenshot 123: Database Maintenance properties: Advanced tab
To compact and repair a Access
™ database backend:
1. Click Configuration tab > Database Maintenance Options > Database maintenance plan.
2. To manually launch a repair and compact process on an Access
™
Now.
database backend, click Compact
3. To automate the repair and compact process on an Access
™ database backend select:
One time only - to schedule a onetime Access
™ database repair and compact
Every - to execute a repair and compact process on a regular schedule.
Specify the date, time and frequency in days/weeks or months at which the compact and repair operations will be executed on your database backend.
11.2.6 Configure database retention options
Database retention options enable you to keep your database clean and consistent, by configuring GFI
LanGuard to automatically delete unwanted scan results and scan history information while retaining important ones.
To configure retention settings:
1. Click Configuration tab > Database Maintenance Options > Database backend settings >
Retention tab.
2. Configure the options described below:
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Table 75: Database retention options
Option
Keep scans generated during the last
Keep scans per scan target per profile number of
Never delete history
Keep history for the last
Description
Keep scan results generated during the specified number of days/weeks/months.
Specify the number of scan results to keep, for every scan target by every scan profile.
Select this option if you want to keep all scan history.
Keep scan history for the specified number of days/weeks/months.
3. Click OK.
11.3 Configuring Program Updates
This tool enables GFI LanGuard to detect the latest vulnerabilities and maintain its scanning performance. Configure GFI LanGuard to auto–download updates released by GFI to improve functionalities in GFI LanGuard. These updates also include checking GFI web site for newer builds.
Updates can be enabled/disabled by selecting the checkbox in the Auto–download column.
GFI LanGuard can download all Unicode languages. This includes (but is not limited to) English,
German, French, Italian, Spanish, Arabic, Danish, Czech, Finnish, Hebrew, Hungarian, Japanese,
Korean, Dutch, Norwegian, Polish, Portuguese, Portuguese/Brazilian, Russian, Swedish, Chinese,
Chinese (Taiwan), Greek, and Turkish.
The following sections provide you with information about:
Configuring auto-update options
Installing program updates manually
11.3.1 Configuring proxy settings
To manually configure proxy server settings for Internet updates:
1. Click on Configuration tab > Program Updates.
2. From Common Tasks select Edit proxy settings.
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Screenshot 124: Configuring proxy server settings
3. Select Override automatic proxy detection; configure the options described below:
Table 76: Proxy settings
Option
Proxy server requires authentication
Description
Connect directly to the
Internet
A direct Internet connection is available.
Connect via a proxy server Internet access is through a proxy server. Update the Server name and port number using this format <server>:<port>
(Optional) Enter username and password if required by the proxy server.
4. Click OK.
11.3.2 Configuring auto-update options
GFI LanGuard can check for the availability of software updates at every program startup. To disable/enable this feature
1. Click on Configuration tab > Program Updates. From Common Tasks select Edit program updates
options.
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Screenshot 125: Configure updates at application startup
2. Select/unselect Check for updates at application startup to enable/disable auto update checks at application startup.
3. Select/unselect enable scheduled updates to configure the frequency of update checks.
4. Specify whether GFI LanGuard download updates from GFI website or from an alternative location.
5. Click OK.
11.3.3 Installing program updates manually
To start GFI LanGuard program updates manually:
1. Click on Configuration tab > Program Updates.
2. From Common Tasks click Check for updates.
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Screenshot 126: Check for Updates wizard
3. Specify the location from where the required update files will be downloaded.
4. (Optional) Change the default download path, select Download all update files… to this path to provide an alternate download path to store all GFI LanGuard updates.
5. Click Next to proceed with the update.
6. Select the updates and click Next.
7. Click Start to start the update process.
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12 Scanning Profile Editor
The scanning profiles that ship with GFI LanGuard are already pre–configured to run a number of vulnerability checks on selected target. You can however disable vulnerability scanning as well as customize the list of vulnerability checks executed during a scan. Scans can be modified through the
Scanning Profile Editor.
Topics in this chapter:
12.1 Create a new Scanning Profile
12.2 Configuring Vulnerabilities
12.4 Configuring Network & Software Audit options
12.5 Configuring security scanning options
12.1 Create a new Scanning Profile
The Scanning Profiles Editor enables you to create new scanning profiles. To create a new custom scanning profile:
1. Launch GFI LanGuard.
2. Click the GFI LanGuard button and select Configuration > Scanning Profile Editor. Alternatively, press CTRL + P to launch the Scanning Profiles Editor.
3. In Scanning Profiles Editor from Common Tasks, click New scanning profile.
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Screenshot 127: The Scanning Profile Editor
4. Specify the name of the new profile and optionally select Copy all settings from an existing profile to clone settings from an existing profile.
5. Click OK to save settings. The new scanning profile is added under Profiles in the left pane.
12.2 Configuring Vulnerabilities
The Vulnerability Assessment Options tab enables you to configure which Microsoft
®
/non-Microsoft
® and Security/non-Security updates are checked when scanning targets with the selected profile.
The following sections provide you with information about:
Enabling vulnerability scanning
Customizing the list of vulnerabilities to be scanned
Customizing vulnerability checks properties
Setting up vulnerability check conditions
12.2.1 Enabling vulnerability scanning
To enable vulnerability scanning:
1. Launch GFI LanGuard.
2. Click the GFI LanGuard button and select Configuration > Scanning Profile Editor. Alternatively, press CTRL + P to launch the Scanning Profiles Editor.
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Screenshot 128: Enabling vulnerability scanning for the selected scanning profile
3. From the Vulnerability Assessment Options tab, click Vulnerabilities sub–tab.
4. Select the scanning profile to customize from the left pane under Profiles.
5. In the right pane, select Enable Vulnerability Scanning.
Note
Vulnerability scanning is configured on a scan profile by scan profile basis. If in a particular profile this option is not selected, no vulnerability tests will be performed in the security audits carried out by this scanning profile.
12.2.2 Customizing the list of vulnerabilities to be scanned
To specify which vulnerabilities will be enumerated and processed by a scanning profile during a security audit:
1. From Vulnerability Assessment Options tab, select the scanning profile to customize from the left pane under Profiles.
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Screenshot 129: Select the vulnerability checks to be run by this scanning profile
2. In the right pane, select the vulnerability checks to execute through this scanning profile.
12.2.3 Customizing vulnerability checks properties
All the checks listed in the Vulnerabilities tab have specific properties that determine when the check is triggered and what details will be enumerated during a scan.
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Screenshot 130: Vulnerability properties dialog: General tab
To change the properties of a vulnerability check:
1. Right–click on the vulnerability to customize, select Properties.
2. Customize the selected vulnerability check from the tabs described below:
Table 77: Vulnerability properties dialog
Tab Description
General Use this tab to customize the general details of a vulnerability check including vulnerability check name, vulnerability type, OS family, OS version, Product, Timestamp and Severity.
Conditions Use this tab to configure the operational parameters of this vulnerability check. These parameters will define whether a vulnerability check is successful or not.
Description Use this tab to customize the vulnerability check description.
References Use this tab to customize references and links that lead to relevant information in the OVAL, CVE, MS
Security, Security Focus and SANS TOP 20 reports.
3. Click on OK to save your settings.
12.2.4 Setting up vulnerability check conditions
The Conditions tab enables you to add or customize conditions, which define whether the computer or network being scanned is vulnerable, or not. It is therefore of paramount importance that any custom checks defined in this section are set–up by qualified personnel that are aware of the ramifications of their actions.
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Screenshot 131: Vulnerability conditions setup tab
To add a vulnerability check condition:
1. From Vulnerability Assessment Options tab > Vulnerabilities sub-tab, right-click a vulnerability from the list of vulnerabilities and select Properties.
2. From the Edit vulnerability dialog, click Conditions tab > Add.
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Screenshot 132: Check properties wizard - Select check type
3. Select the type of check to be configured and click Next.
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Screenshot 133: Check properties wizard - Define the object to examine
4. Define the object to examine and click Next.
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Screenshot 134: Check properties wizard - Set required conditions
5. Specify required conditions and click Finish to finalize your settings.
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Screenshot 135: Check properties wizard - Defining conditional operators
6. If more than one condition is set up, define conditional operators and click OK to finalize your configuration settings.
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Screenshot 136: Advanced vulnerability options
7. (Optional) Click Advanced in the Vulnerabilities tab to launch the advanced vulnerabilities scanning options.
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Screenshot 137: Advanced vulnerability scanning dialogs
The options in Advanced Vulnerabilities Options are used to:
Configure extended vulnerability scanning features that check your target computers for weak passwords, anonymous FTP access, and unused user accounts.
Configure how GFI LanGuard handles newly created vulnerability checks.
Configure GFI LanGuard to send CGI requests through a specific proxy server. This is mandatory when CGI requests will be sent from a computer that is behind a firewall to a target web server that is ‘outside’ the firewall. For example, Web servers on a DMZ.
The firewall will generally block all the CGI requests that are directly sent by GFI LanGuard to a target computer that is in front of the firewall. To avoid this, set the Send CGI requests through
proxy option to ‘Yes’ and specify the name/IP address of your proxy server and the communication port which will be used to convey the CGI request to the target.
12.3 Configuring Patches
The Patches tab specifies the security updates checked during vulnerability scanning. The patches checked are selected from the complete list of supported software updates, included in this tab. This list is automatically updated whenever GFI releases a new GFI LanGuard missing patch definition file.
The following sections contain information about:
Enabling/disabling missing patch detection checks
Customizing the list of software patches to scan
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Searching for Bulletin Information
12.3.1 Enabling/disabling missing patch detection checks
Screenshot 138: Scanning Profiles properties: Patches tab options
To enable missing patch detection checks in a particular scanning profile:
1. Launch GFI LanGuard.
2. Click the GFI LanGuard button and select Configuration > Scanning Profile Editor. Alternatively, press CTRL + P to launch the Scanning Profiles Editor.
3. From the Vulnerability Assessment Options tab, click Patches sub–tab.
4. Select the scanning profile that you wish to customize from the left pane under Profiles.
5. In the right pane, select Detect installed and missing service packs/patches option.
Note
Missing patch scanning parameters are configurable on a scan profile by scan profile basis. Make sure to enable missing patch scanning in all profiles where missing patch scanning is required.
12.3.2 Customizing the list of software patches to scan
To specify which missing security updates will be enumerated and processed by a scanning profile:
1. From the Vulnerability Assessment Options tab, click Patches sub–tab
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2. Select the scanning profile to customize from the left pane under Profiles.
Screenshot 139: Select the missing patches to enumerate
3. In the right pane, select/unselect which missing patches are enumerated by this scanning profile.
12.3.3 Searching for Bulletin Information
Screenshot 140: Searching for bulletin information
To search for a particular bulletin:
1. From Vulnerability Assessment Options > Vulnerabilities > Find bulletin, specify the bulletin name (example: MS02–017) or QNumber (example: Q311987), in the search tool entry box included at the bottom of the right pane.
2. Click Find to search for your entry.
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Screenshot 141: Extended bulletin information
12.4 Configuring Network & Software Audit options
The scanning profiles that ship with GFI LanGuard are already pre–configured to run a number of network and software audit checks on selected target. You can however disable scanning as well as customize the list of network and software audits executed during a scan.
This section contains information about:
Configuring TCP/UDP port scanning options
Configuring System Information options
Configuring Device scanning options
Configuring Applications scanning options
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12.4.1 Configuring TCP/UDP port scanning options
Screenshot 142: Scanning Profiles properties: TCP Ports tab options
Table 78: TCP Port scanning options
Option
Enabling/disabling TCP Port scanning
Configuring the list of TCP ports to be scanned
Customizing the list TCP ports
Description
To enable TCP Port Scanning in a particular scanning profile:
1. From the Network & Security Audit Options tab, click TCP Ports sub–tab.
2. Select the scanning profile that you wish to customize from the left pane under Profiles.
3. Select Enable TCP Port Scanning option.
To configure which TCP ports will be processed by a scanning profile:
1. From Network & Security Audit Options tab, click TCP Ports sub–tab.
2. Select scanning profile to customize from the left pane under Profiles.
3. Select TCP ports to analyze with this scanning profile.
1. From the Network & Security Audit Options tab, click TCP Ports sub–tab.
2. Select the scanning profile that you wish to customize from the left pane under Profiles.
3. Customize the list of TCP Ports through Add, Edit or Remove.
Note
The list of supported TCP/UDP Ports is common for all profiles. Deleting a port from the list will make it unavailable for all scanning profiles
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12.4.2 Configuring System Information options
Screenshot 143: Scanning Profiles properties: System Information tab options
To specify what System Information is enumerated by a particular scanning profile:
1. From the Network & Security Audit Options tab, click System Information sub–tab.
2. Select the scanning profile that you wish to customize from the left pane under Profiles.
3. From the right pane, expand the Windows System Information group or Linux System Information group accordingly.
4. Select which Windows/Linux OS information is retrieved by the security scanner from scanned targets.
For example, to enumerate administrative shares in scan results, expand the Enumerate shares option and set the Display admin shares option to ‘Yes’.
12.4.3 Configuring Device scanning options
Use the Devices tab to enumerate network devices. Together with device enumeration, you can further configure GFI LanGuard to generate high security vulnerability alerts whenever a USB or
Network device is detected.
This is achieved by compiling a list of unauthorized/blacklisted Network and USB devices that you want to be alerted.
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Screenshot 144: The network devices configuration page
GFI LanGuard can also exclude from the scanning process specific USB devices that you consider safe.
Such devices can be a USB mouse or keyboard. This is achieved through a safe/white list of USB devices to ignored during scanning.
Similarly you can create a separate scanning profile that enumerates only Bluetooth dongles and wireless NIC cards connected to your target computers. In this case however, you must specify
‘Bluetooth’ and ‘Wireless’ or ‘WiFi’ in the unauthorized network and USB lists of your scanning profile.
All the device scanning configuration options are accessible through the two sub–tabs contained in the devices configuration page. These are the Network Devices tab and the USB Devices tab.
Use the Network Devices sub–tab to configure the attached network devices scanning options and blacklisted (unauthorized)/white–listed (safe) devices lists.
Use the USB Devices sub–tab to configure the attached USB devices scanning options and unauthorized/safe devices lists.
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Table 79: Device scanning options
Option Description
Enabling/disabling checks for all installed network devices
To enable network device (including USB device) scanning in a particular scanning profile:
1. From the Network & Security Audit Options tab, click Devices sub–tab.
2. Click Network Devices tab.
3. Select the scanning profile to customize from the left pane under Profiles.
4. From the right pane, select Enable scanning for hardware devices on target computer(s).
Note
Network device scanning is configurable on a scan profile by scan profile basis. Make sure to enable network device scanning in all profiles where this is required.
Compiling a network device blacklist/white–list
To compile a network device blacklist/white–list for a scanning profile:
1. From the Network & Security Audit Options tab, click Devices sub–tab.
2. Click Network Devices tab.
3. Select the scanning profile to customize from the left pane under Profiles.
4. In the right pane: to create a network device blacklist, specify which devices you want to classify as high security vulnerabilities in the space provided under Create a high security
vulnerability for network devices which name contains.
For example, if you enter the word ‘wireless’ you will be notified through a high security vulnerability alert when a device whose name contains the word ‘wireless’ is detected. To create a network device white–list, specify which devices you want to ignore during network vulnerability scanning in the space provided under Ignore (Do not list/save to db) devices which name contains.
Configuring advanced network device scanning options
Scanning for USB devices
Note
Only include one network device name per line.
From the Network Devices tab, you can also specify the type of network devices checked by this scanning profile and reported in the scan results. These include ‘wired network devices’,
‘wireless network devices’, ‘software enumerated network devices’ and ‘virtual network devices’.
To specify which network devices to enumerate in the scan results:
1. From the Network & Security Audit Options tab, click Devices sub–tab.
2. Click on the Network Devices tab (opens by default).
3. Select the scanning profile that you wish to customize from the left pane under Profiles.
4. Click Advanced at the bottom of the page.
5. Set the required options to Yes. Click OK to finalize your settings.
To compile a list of unauthorized/unsafe USB devices:
1. From the Network & Security Audit Options tab, click the Devices sub–tab.
2. Click USB Devices tab.
3. Select the scanning profile that you wish to customize from the left pane under Profiles.
4. In the right pane. specify which devices you want to classify as high security vulnerabilities in the space provided under Create high security vulnerability for USB devices which name
contains:.
For example, if you enter the word ‘iPod’, you will be notified through a high security vulnerability alert when a USB device whose name contains the word ‘iPod’ is detected.
To create a USB device white–list, specify which USB devices you want to ignore during network vulnerability scanning in the space provided under Ignore (Do not list/save to db) devices which
name contains.
Note
Only include one USB device name per line.
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12.4.4 Configuring Applications scanning options
The Applications tab enables you to specify which applications will trigger an alert during a scan.
Screenshot 145: The applications configuration page
Through this tab, you can also configure GFI LanGuard to detect and report unauthorized software installed on scanned targets and to generate high security vulnerability alerts whenever such software is detected.
Table 80: Applications scanning options
Option Description
Scanning installed applications
Enabling/disabling checks for installed applications
By default,GFI LanGuard also supports integration with particular security applications. These include various anti–virus and anti–spyware software.
During security scanning, GFI LanGuard checks the correct configuration of virus scanner(s) or anti– spyware software and that the respective definition files are up to date.
Application scanning is configurable on a scan profile by scan profile basis and all the configuration options are accessible through the two sub–tabs contained in the Applications tab. These are the
Unauthorized Applications sub–tab and the Advanced Options sub–tab.
To enable installed applications scanning in a particular scanning profile:
1. From the Network & Security Audit Options tab, click on the Applications sub–tab.
2. Click on the Unauthorized Applications sub–tab.
3. Select the scanning profile that you wish to customize from the left pane under Profiles.
4. Select the Enable scanning for installed applications on target computer(s) checkbox.
Note
Installed applications scanning are configurable on a scan profile by scan profile basis. Make sure to enable installed applications scanning in all profiles where this is required.
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Option
Compiling installed applications blacklist/white–list
Advanced application scanning options
Description
To compile installed applications blacklist/white–list:
1. From the Network & Security Audit Options tab, click Applications sub–tab.
2. Select Unauthorized Applications sub–tab.
3. Select the scanning profile to customize from the left pane under Profiles.
4. From the right pane, select Enable scanning for installed applications on target computer(s) checkbox.
5. Specify the applications that are authorized for installation. Select from:
Only the applications in the list below - Specify names of applications that are authorized for installation. These applications will be ignored during a security scan
All applications except the ones in the list below - Specify the names of the applications that are unauthorized for installation. Applications not in this list will be ignored during a security scan.
6. In the Ignore (Do not list/save to db) applications from the list below options key in applications by clicking Add. Any application listed is white–listed.
Note
Include only one application name per line.
GFI LanGuard ships with a default list of anti–virus and anti–spyware applications that can be checked during security scanning.
The Advanced Options tab enables you to configure when GFI LanGuard will generate high security vulnerability alerts if it detects certain configurations of a security application.
Alerts are generated when:
No anti–virus, anti–spyware or firewall is detected
A fake anti–virus or anti–spyware is detected
Anti–virus or anti–spyware definitions are not up to date
Anti–virus or anti–spyware real–time monitoring is turned off
Anti–virus or anti–spyware product is expired
Anti–virus or anti–spyware product detects malware on the scanned computer(s)
Firewall is disabled
HTTP/FTP timeout when checking for product updates on remote sites. This option generates an alert if the number of seconds defined for timeout is exceeded.
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Option
Enabling/disabling checks for security applications
Description
To enable checks for installed security applications in a particular scanning profile:
1. From the Network & Security Audit Options tab, click on the Applications sub–tab.
2. Click on the Advanced Options tab.
3. Select the scanning profile that you wish to customize from the left pane under Profiles.
4. Select Enable scanning for installed applications on target computer(s) checkbox.
5. (Agent–less scans) Select Enable full security applications audit for agent–less scans checkbox.
Note
1. Agent–less scans temporarily runs a small service on the remote computers in order to retrieve the relevant information.
2. Security applications scanning are configurable on a scan profile by scan profile basis. Make sure to enable security applications scanning in all profiles where this is required.
3. The number of supported security applications is constantly updated. Click the link available in order to get the latest version of the list. Configuring security applications – advanced options.
To configure alerting triggers for installed security applications in a particular scanning profile:
1. From Network & Security Audit Options tab, click Applications sub–tab.
2. Click Advanced Options tab.
3. Select the scanning profile that you wish to customize from the left pane under Profiles.
4. Select Enable scanning for installed applications on target computer(s) checkbox.
5. (Agent–less scans) Select Enable full security applications audit for agent–less scans checkbox.
6. From the bottom–right pane, select the trigger you want to configure and choose between Yes
or No from the drop down menu next to the respective alert trigger.
Note
Security applications scanning are configurable on a scan profile by scan profile basis. Make sure to enable security applications scanning in all profiles where this is required.
12.5 Configuring security scanning options
Use Scanner Options tab to configure the operational parameters of the security–scanning engine.
These parameters are configurable on a scan profile by scan profile basis and define how the scanning engine will perform target discovery and OS Data querying.
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Screenshot 146: Scanning Profiles properties: Scanner Options tab
Configurable options include timeouts, types of queries to run during target discovery, number of scanning threads count, SNMP scopes for queries and more.
Important
Configure these parameters with extreme care! An incorrect configuration can affect the security scanning performance of GFI LanGuard.
To configure scanner options:
1. From Scanning Profile Editor > Profile categories, select the category that contains the scanning profile you want to edit (example: Complete/Combination Scans).
2. From the Profiles section, select the scanning profile you want to edit (example: Full Vulnerability
Assessment).
3. From the right pane, click Scanner Options.
4. Configure the following parameters that determine the scanning behavior of GFI LanGuard:
Table 81: Scanner Options
Parameter Description
Network Discovery Methods
NetBIOS queries Enable/disable the use of NetBios queries to discover network devices.
SNMP queries Enable/disable the use of SNMP queries to discover network devices.
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Parameter
Ping sweep
Description
Enable/disable the use of Ping sweeps to discover network devices.
Custom TCP discovery Discover online machines by querying for the specified open TCP ports.
Network Discovery Options
Scanning delay
Network discovery query responses timeout
Number of retries
Key in the time interval (in milliseconds) between one scan and another.
Amount of time in milliseconds the security scanner will wait before timing out when performing a machine discovery query (NetBIOS/SNMP/Ping).
Number of times security scanner will retry to connect to a non-responsive machine before skipping it.
Run scans on all the PCs regardless of whether they are detected as being online or not.
Include non-responsive computers
Perform a TCP port probing in order to detect mobile devices
Perform a TCP port probing in order to detect mobile devices using known ports.
Network Scanner Options
Scanning threads count Key in the number of scan threads that can run simultaneously.
NetBIOS Query Options
Scope ID Used for NetBIOS environments requiring a specific scope ID in order to allow querying.
SNMP Query Options
Load SNMP enterprise numbers
Community strings
UDP port scan query timeout
WMI Options
Specifies whether security scanner should use the OID (Object Identifier database) containing ID to Vendor map to identify the various types of devices.
Specifies whether security scanner should use the specified community string for SNMP server detection and information retrieval.
Global Port Query Options
TCP port scan query timeout
Amount of time in milliseconds security scanner will wait during a TCP port scan before timing out and moving on to scan the next port.
Amount of time in milliseconds security scanner will wait during a UDP port scan before timing out and moving on to scan the next port.
WMI timeout Amount of time in milliseconds security scanner will wait for a reply from the remote WMI server before timing out and moving on to the next scan item.
SSH Options
SSH timeout Amount of time in milliseconds security scanner will wait for a SSH script to return before timing out and moving on to the next scan item.
Alternative SSH port
Scanner activity window
Alternative SSH ports to use when the default port 22 is unreachable.
Type of scanner activity output
Activity progress modes: simple (basic progress - start / stop of operations), or verbose (more detailed information on process flow).
Display received packets Output TCP packets in raw format as they were received by security scanner.
Display sent packets Output TCP packets in raw format as they were sent by security scanner.
OS Information Retrieval Options
Create custom share if administrative privileges are disabled
Start remote registry
If administrative shares are disabled the scanner will temporarily create a custom hidden share of the form <random GUID>$. The share is used to retrieve data that helps identifying vulnerabilities and missing patches.
If the remote registry service is stopped on the scanned machine, enable this option to temporarily open it during the security scanning.
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13 Utilities
GFI LanGuard provides you with a set of network utilities that enable you to monitor network activity, gather network information and audit network devices.
Topics in this chapter:
13.1 DNS Lookup
DNS lookup resolves domain names into the corresponding IP address and retrieves particular information from the target domain (for example, MX record, etc.).
To resolve a domain/host name:
1. Launch GFI LanGuard.
2. Click Utilities tab and select DNS Lookup in the left pane under Tools.
3. Specify the hostname to resolve in Hostname/IP to resolve.
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Screenshot 147: DNS Lookup tool
4. Under Common Tasks in the left pane, click on Edit DNS Lookup options or click Options on the right pane and specify the information described below:
Table 82: DNS lookup options
Option Description
Retrieve the host name and the relative IP address.
Basic Information
Host Information
Retrieve HINFO details. The host information (known as HINFO) generally includes target computer information such as hardware specifications and OS details.
Aliases Retrieve information on the ‘A Records’ configured on the target domain.
MX Records Enumerate all the mail servers and the order (i.e. priority) in which they receive and process emails for the target domain.
NS Records Specify the ‘name–servers’ that are authoritative for a particular domain or sub domain.
Note
Some DNS entries do not contain certain information for security reasons.
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Screenshot 148: DNS Lookup tool options
5. (Optional) Specify the alternative DNS server that will be queried by the DNS Lookup tool or leave as default to use the default DNS server.
6. Click Retrieve to start the process.
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13.2 Traceroute
Traceroute identifies the path that GFI LanGuard followed to reach a target computer.
Screenshot 149: Traceroute tool
To use the Traceroute tool:
1. Launch GFI LanGuard.
2. Click Utilities tab and select Traceroute in the left pane under Tools.
3. In the Trace (domain/IP/name), specify the name/IP or domain to reach.
4. (Optional) Under Common Tasks in the left pane, click on Edit Traceroute options or click Options on the right pane to change the default options.
5. Click on the Traceroute button to start the tracing process.
Traceroute will break down, the path taken to a target computer into ‘hops’. A hop indicates a stage and represents a computer that was traversed during the process.
The information enumerated by this tool includes the IP of traversed computers, the number of times that a computer was traversed and the time taken to reach the respective computer. An icon is also included next to each hop. This icon indicates the state of that particular hop. The icons used in this tool include:
Table 83: Traceroute icons
Icon Description
Indicates a successful hop taken within normal parameters.
Indicates a successful hop, but time required was quite long.
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Icon Description
Indicates a successful hop, but the time required was too long.
Indicates that the hop was timed out (> 1000ms).
13.3 Whois
Whois looks up information on a particular domain or IP address.
Screenshot 150: Whois tool
1. Launch GFI LanGuard.
2. Click Utilities tab and select Whois in the left pane under Tools.
3. In Query (domain/IP/name) menu, specify the name/IP or domain to reach.
4. (Optional) From Common Tasks in the left pane, click Edit Whois options or Options on the right pane to change the default options.
5. Click Retrieve to start the process.
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13.4 Enumerate Computers
Screenshot 151: Enumerate Computers tool
The enumerate computers utility identifies domains and workgroups on a network. During execution, this tool will also scan each domain/workgroup discovered so to enumerate their respective computers.
The information enumerated by this tool includes:
The domain or workgroup name
The list of domain/workgroup computers
The operating system installed on the discovered computers
Any additional details that might be collected through NetBIOS.
Computers are enumerated using one of the following methods:
Table 84: Enumerate computers options
Option Description
This method is much faster and will include computers that are currently switched off.
From Active
Directory
®
From Windows
Explorer
This method enumerates computers through a real–time network scan and therefore it is slower and will not include computers that are switched off.
To enumerate computers:
1. Launch GFI LanGuard.
2. Click Utilities tab and select Enumerate Computers in the left pane under Tools.
3. In the Enumerate computers in domain, select the desired domain.
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4. From Common Tasks in the left pane, click Edit Enumerate Computers options or Options on the right pane.
5. Select whether to enumerate computers from Active Directory
® or Windows Explorer.
6. Click Retrieve to start the process.
Note
For an Active Directory
® scan, you will need to run the tool under an account that has access rights to Active Directory
®
.
13.4.1 Starting a Security Scan
To start a security scan directly from the ‘Enumerate Computers’ tool, right–click on any of the enumerated computers and select Scan.
You can also launch a security scan and at the same time continue using the Enumerate Computers tool. This is achieved by right–clicking on any of the enumerated computers and selecting Scan in background.
13.4.2 Deploying Custom Patches
You can use the Enumerate Computers tool to deploy custom patches and third party software on the enumerated computers. To launch a deployment process directly from this tool:
1. Select the computers that require deployment.
2. Right–click on any of the selected computers and select Deploy Custom Patches.
13.4.3 Enabling Auditing Policies
The Enumerate Computers tool also enables you to configure auditing policies on particular computers. This is done as follows:
1. Select the computers on which you want to enable auditing policies.
2. Right–click on any of the selected computers and select Enable Auditing Policies. This will launch the Auditing Policies configuration Wizard that will guide you through the configuration process.
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13.5 Enumerate Users
Screenshot 152: The Enumerate Users tool dialog
To scan the Active Directory
® and retrieve the list of all users and contacts included in this database:
1. Launch GFI LanGuard.
2. Click Utilities tab and select Enumerate Users in the left pane under Tools.
3. In the Enumerate users in domain menu, select the desired domain.
4. From Common Tasks in the left pane, click Edit Enumerate Users options or Options on the right pane to filter the information to extract and display only the users or contacts details. In addition, you can optionally configure this tool to highlight disabled or locked accounts.
5. Click Retrieve to start the process.
Note
This tool can enable or disable enumerated user accounts. Right–click on the account and select Enable/Disable account accordingly.
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13.6 SNMP Auditing
Screenshot 153: SNMP Audit tool
This tool identifies and reports weak SNMP community strings by performing a dictionary attack using the values stored in its default dictionary file (snmp–pass.txt).
You can add new community strings to the default dictionary file by using a text editor (for example, notepad.exe).
You can also direct the SNMP Audit tool to use other dictionary files. To achieve this, specify the path to the dictionary file that you want to from the tool options at the right of the management console.
To perform SNMP audits on network targets and identify weak community strings:
1. Launch GFI LanGuard.
2. Click Utilities tab and select SNMP Audit in the left pane under Tools.
3. In the IP of computer running SNMP, specify the IP to reach.
4. From Common Tasks in the left pane, click on Edit SNMP Audit options or Options on the right pane to edit the default options.
5. Click Retrieve to start the process.
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13.7 SNMP Walk
Screenshot 154: SNMP Walk tool
To probe your network nodes and retrieve SNMP information (for example, OID’s):
1. Launch GFI LanGuard.
2. Click Utilities tab and select SNMP Walk in the left pane under Tools.
3. In the IP address menu, specify the IP address of the computer that you wish to scan for SNMP information.
4. From Common Tasks in the left pane, click Edit SNMP Walk options or Options on the right pane to edit the default options such as providing alternative community strings.
5. Click Retrieve to start the process.
IMPORTANT
SNMP activity is normally blocked at the router / firewall so that internet users cannot
SNMP scan your network. Malicious users can use information enumerated through SNMP scanning to hack your network / systems. Unless this service is required, it is highly recommended to disable it.
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13.8 SQL Server
®
Audit
This tool enables you to test the password vulnerability of the ‘sa’ account (i.e. root administrator), and any other SQL user accounts configured on the SQL Server
®
. During the audit process, this tool will perform dictionary attacks on the SQL Server
® accounts using the credentials specified in the
‘passwords.txt’ dictionary file. However, you can also direct the SQL Server
®
Audit tool to use other dictionary files. You can also customize your dictionary file by adding new passwords to the default list.
To perform a security audit on a particular SQL Server
® installation:
1. Launch GFI LanGuard.
2. Click Utilities tab and select SQL Server Audit in the left pane under Tools.
Screenshot 155: SQL Server
®
Audit
3. In the Audit MS SQL Server menu, specify the IP address of the SQL Server
® that you wish to audit.
4. From Common Tasks in the left pane, click Edit SQL Server
®
Audit options or Options button on the right pane to edit the default options such as performing dictionary attacks on all the other SQL user accounts.
5. Click Audit to start the process.
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13.9 Command Line Tools
The command line tools enable you to launch network vulnerability scans and patch deployment sessions as well as importing and exporting profiles and vulnerabilities without loading up the GFI
LanGuard management console. Use the information in this section to learn how to run patch management functions using the following CMD tools:
13.9.1 Using Insscmd.exe
The ‘lnsscmd.exe’ command line target–scanning tool allows you to run vulnerability checks against network targets directly from the command line, or through third party applications, batch files and scripts. The ‘lnsscmd.exe’ command line tool supports the following switches: lnsscmd <Target> [/profile=profileName] [/report=reportPath]
[/reportname=reportName] [/output=pathToXmlFile] [/user=username
/password=password] [/Email [/EmailAddress=EmailAddress]]
[/DontShowStatus] [/UseComputerProfiles] [/Wake] [/Shutdown
[/ShutdownIntervalStart=<hh:mm:ss>] [/ShutdownIntervalEnd=<hh:mm:ss>]]
[/?] lnsscmd command switches
Table 85: Insscmd command switches
Switch
Target
Description
Specify the IP / range of IPs or host name(s) to be scanned.
/Profile (Optional) Specify the scanning profile that will be used during a security scan. If this parameter is not specified, the scanning profile that is currently active in the GFI LanGuard will be used.
Note
In the management console, the default (i.e. currently active) scanning profile is denoted by the word (Active) next to its name. To view which profile is active expand the Configuration tab > Scanning Profiles node.
/Output
/Report
/ReportName
/User and /Password
(Optional) Specify the full path (including filename) of the XML file where the scan results will be saved.
(Optional) Directory or full file name for the output scan report.
(Optional) Name of the report to generate. If not specified, the report is saved with a default name.
(Optional) Specify the alternative credentials that the scanning engine will use to authenticate to a target computer during security scanning. Alternatively you can use the /UseComputerProfiles switch to use the authentication credentials already configured in the dashboard.
/EmailAddress
/DontShowStatus
(Optional) Send the resulting report by e-mail. The e-mail address and mail server specified in Configuration > Alerting Options are used.
(Optional) Dependent on /Email. Overrides the general alerting options and uses the specified email address.
(Optional) Include this switch if you want to perform silent scanning. In this way, the scan progress details will not be shown.
/UseComputerProfiles (Optional) Use per computer credentials when available.
/Wake (Optional) Wake up offline computers.
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Switch
/Shutdown
Description
(Optional) Shuts down computers after scan.
/ShutdownIntervalStart (Optional) Dependent on /Shutdown. The start time of the interval when shutdown is allowed. Use hh:mm:ss format.
/ShutdownIntervalEnd (Optional) Dependent on /Shutdown. The end time of the interval when shutdown is allowed.
Use hh:mm:ss format.
/?
(Optional) Use this switch to show the command line tool usage instructions.
Note
Always enclose full paths and profile names within double quotes. For example, “[path or path name]” or “C:\temp\test.xml”.
The command line target–scanning tool allows you to pass parameters through specific variables.
These variables will be automatically replaced with their respective value during execution. The table below describes the supported variables:
Supported variables
Table 86: Supported variables in lnssmcd
Variable Description
%INSTALLDIR% During scanning, this variable will be replaced with the path to the GFI LanGuard installation directory.
%TARGET% During scanning this variable will be replaced with the name of the target computer.
%SCANDATE% During scanning this variable will be replaced with the date of scan.
%SCANTIME% During scanning this variable will be replaced with the time of scan.
Example
1. To perform a security scan on a target computer having IP address ‘130.16.130.1’.
2. Output the scan results to ‘c:\out.xml’ (i.e. XML file).
3. Generate a PDF report and save it in ‘c:\result.odf’.
4. Send the PDF report via email to ‘[email protected]’
The command should be as follows: lnsscmd.exe 130.16.130.1 /Profile="Default" /Output="c:\out.xml"
/Report="c:\result.pdf" /Email /emailAddress="[email protected]"
13.9.2 Using deploycmd.exe
The ‘deploycmd.exe’ command line patch deployment tool allows you to deploy Microsoft
® patches and third party software on remote targets directly from the command line, or through third party applications, batch files or scripts. The ‘deploycmd.exe’ command line tool supports the following switches: deploycmd <target> </file=FileName> [/switches=Switches]
[/username=UserName /password=Password] [/warnuser] [/userapproval]
[/stopservices] [/customshare=CustomShareName] [/reboot]
[/rebootuserdecides] [/wake] [/shutdown] [/deletefiles] [/timeout=Timeout
(sec)] [/usecomputerprofiles] [/RebootCountdown=Time(sec)]
[/RebootCountdownMessage="Custom message"][/RebootAtFirstOccurenceOf=Time
(formatted as "hh:mm:ss")] [/ShutDownAtFirstOccurenceOf=Time(formatted as
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"hh:mm:ss")] [/RebootInInterval] [/ShutDownInInterval]
[/RebootIntervalStart=Time(formatted as "hh:mm:ss")]
[/RebootIntervalEnd=Time(formatted as "hh:mm:ss")] [/?] deploycmd command switches
Table 87: deploycmd command switches
Switch Description
Target
/File
/User and /Password
Specify the name(s), IP or range of IPs of the target computer(s) on which the patch
(es) will be deployed.
Specify the file that you wish to deploy on the specified target(s).
/warnuser
(Optional) Specify the alternative credentials that the scanning engine will use to authenticate to a target computer during patch deployment. Alternatively you can use the /UseComputerProfiles switch to use the authentication credentials already configured in the Dashboard.
(Optional) Include this switch if you want to inform the target computer user that a file/patch installation is in progress. Users will be informed through a message dialog that will be shown on screen immediately before the deployment session is started.
/useraproval
/stopservice
(Optional) Include this switch to request the user’s approval before starting the file/patch installation process. This allows users to postpone the file/patch installation process for later (for example, until an already running process is completed on the target computer).
(Optional) Include this switch if you want to stop specific services on the target computer before installing the file/patch.
Note
You cannot specify the services that will be stopped directly from the command line tool. Services can only be added or removed through the management console.
/customshare
/reboot
/rebootuserdecides
(Optional) Specify the target share where you wish to transfer the file before it is installed.
(Optional Parameter) Include this switch if you want to reboot the target computer after file/patch deployment.
(Optional Parameter) Include this switch to allow the current target computer user to decide when to reboot his computer (after patch installation).
/wake
/shutdown
/deletefiles
/timeout
Wakes up offline computers.
(Optional Parameter) Include this switch if you want to shut down the target computer after the file/patch is installed.
(Optional Parameter) Include this switch if you want to delete the source file after it has been successfully installed.
(Optional Parameter) Specify the deployment operation timeout. This value defines the time that a deployment process will be allowed to run before the file/patch installation is interrupted.
(Optional) Use data from computer profiles.
/usecomputerprofiles
/RebootCountdown
/RebootCountdownMessage
/RebootAtFirstOccurenceOf
(Optional) Display a reboot countdown window for a number of seconds to the remote user before rebooting.
(Optional) Used in conjunction with /RebootCountdown. Displays a custom message to the remote user before rebooting the computer.
(Optional) Reboot a computer at the first occurrence of a specified time. The time is expected in the 24 hour format "hh:mm:s s". Example, 18:30:00.
/ShutDownAtFirstOccurenceOf (Optional) Shutdown a computer at the first occurrence of a specified time. The time is expected in the 24 hour format "hh:mm:s s". Example, 18:30:00.
/RebootInInterval (Optional) Reboot the computer after deployment if deployment completes in the specified time interval. Otherwise wait to specify the interval manually. Requires parameters /RebootIntervalStart and /RebootIntervalEnd.
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Switch
/ShutdownIntervalStart
/ShutdownIntervalEnd
/ShutDownInInterval
/?
Description
(Optional) Dependent on /Shutdown. The start time of the interval when shutdown is allowed. Use hh:mm:ss format.
(Optional) Dependent on /Shutdown. The end time of the interval when shutdown is allowed. Use hh:mm:ss format.
(Optional) Shutdown the computer after deployment if deployment completes in the specified time interval. Otherwise wait to specify the interval manually.
(Optional) Use this switch to show the command line tool’s usage instructions.
Example
1. Deploy a file called ‘patchA001002.XXX’.
2. On target computer ‘TMJohnDoe’.
3. Reboot the target computer after successful deployment of the file.
The command should be as follows:: deploycmd TMJohnDoe /file=”patchA001002.XXX” /reboot
13.9.3 Using impex.exe
The Impex tool is a command line tool that can be used to Import and Export profiles and vulnerabilities from GFI LanGuard Network Security Scanner. The parameters supported by this tool are the following: impex [[/H] | [/?]] | [/XML:xmlfile [/DB:dbfile] [[/EX] [/MERGE]] | [/IM
[/ONLYNEWER]] [/PROFILES | /VULNS | /PORTS | /PROFILE:name | /VULNCAT:cat
[/VULN:name] | /PORTTYPE:type [/PORT:number]] [/SKIP | /OVERWRITE |
/RENAME:value]] impex command switches
Table 88: impex command switches
Switch Description
Displays help information.
/H
/?
Run impex without parameters
/XML:<xmlfile> This parameter specifies the name of the imported or exported XML file. <xmlfile> needs to be replaced with the name of the file the profile is being exported to.
/DB:<dbfile>
/EX
/MERGE
/IM
/ONLYNEWER
/PROFILES
/VULNS
/PORTS
/PROFILE:<name>
Note
This parameter is mandatory to import or export alerts.
Where <dbfile> is the database file to be used during the import/export operation. If this is not specified the default "operationsprofiles.mdb" file will be used.
Exports data from database to XML file (Default option)
If this is specified when the target XML for export already exists, the file will be opened and data will be merged; otherwise the XML file is first deleted.
Imports data from XML file to database
When specified only vulnerabilities newer than the newest vulnerability in the database will be imported.
Exports/Imports all scanning profiles.
Exports/Imports all vulnerabilities.
Exports/Imports all ports
Exports/Imports the specified scanning profile.
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Switch Description
/VULNCAT:<category> Exports/Imports all vulnerabilities of the specified category.
/VULN:<name>
/PORTTYPE:<type>
Exports/Imports the specified vulnerability (/VULNCAT must be specified).
Exports/Imports all ports of the specified type.
/PORT:<number>
/SKIP
/OVERWRITE
/RENAME:<value>
Exports/Imports the specified port (/PORTTYPE must be specified).
If an item already exists in the target XML/database, that item will be skipped
If an item already exists in the target XML/database, that item will be overwritten.
If an item already exists in the target XML/database, that item will be renamed to <value>. If
/PROFILE or /VULN was specified, port information merged with that item is a port or renamed by prefixing its name with <value> in any other case.
Example 1
To import specific entries from an XML file: impex /xml:regcheck.xml /vuln:"Blaster Worm" /vulncat:"Registry
Vulnerabilities"
Example 2
To import a whole XML file: impex /xml:regcheck.xml /im
Note
The Impex executable can be located in the GFI LanGuard installation folder.
Note
If the specified <xmlfile>, <dbfile>, <name>, <category> or <value> contain any space character, the whole value must be placed between double quotes. Example:
<xmlfile> containing space = "Vulnerability Checks Definitions.xml"
<xmlfile> without space = VulnerabilityChecksDefinitions.xml
Note
It is recommended that if the vulnerabilities are imported into another installed instance of GFI LanGuard; that installation will have the same build number as the one the database has been exported from.
IMPORTANT
It is highly recommended not to use the Impex tool if GFI LanGuard application
(LanGuard.exe) or LanGuard scanning profiles (scanprofiles.exe) are running.
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14 Script Debugger
Scripts that identify custom vulnerabilities can be created using any VBScript compatible scripting language. By default, GFI LanGuard ships with a script editor that you can use to create your custom scripts.
New checks must be included in the list of checks supported by GFI LanGuard. Use the Vulnerability
Assessment tab to add new checks to the default list of vulnerability checks on a scan profile by scan profile basis. GFI LanGuard also supports Python scripting.
Topics in this chapter:
14.1 Creating custom scripts using VBscript
14.2 Creating custom scripts using Python Scripting
14.1 Creating custom scripts using VBscript
GFI LanGuard supports and runs scripts written in VBscript compatible languages. Use VBscript compatible languages to create custom scripts that can be run against your network targets.
Security auditing scripts can be developed using the script editor that ships with GFI LanGuard. This built–in script editor includes syntax highlighting capabilities as well as debugging features that support you during script development. Open the script editor from Start > Programs > GFI LanGuard
> LanGuard Script Debugger.
Note
1. For more information on how to develop scripts using the built–in script editor, refer to the Scripting documentation help file included in Start > Programs > GFI LanGuard
> LanGuard Scripting documentation.
Note
GFI does not support requests related to problems in custom scripts. You can post any queries that you may have about GFI LanGuard forums at http://forums.gfi.com/ .
Through this forum, you are able to share scripts, problems and ideas with other GFI
LanGuard users.
14.1.1 Adding a vulnerability check that uses a custom VBScript (.vbs)
To create new vulnerability checks that use custom VBScripts, follow the steps described in this section:
Step 2: Add new vulnerability checks
Step 3: Test the vulnerability check/script
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Step 1: Create the script
1. Launch the Script Debugger from Start > Programs > GFI LanGuard > LanGuard Script Debugger.
2. Go on File > New.
3. Create a script. For this example, use the following sample script code.
Function Main echo "Script has run successfully"
Main = true
End Function
4. Save the script in <LanGuard installation folder path>
\Data\Scripts\myscript.vbs
.
Step 2: Add new vulnerability checks
1. Launch GFI LanGuard.
2. Click the GFI LanGuard button and select Configuration > Scanning Profile Editor. Alternatively, press CTRL + P to launch the Scanning Profiles Editor.
3. In the new window, add a new vulnerability by clicking Add under the list of vulnerability checks.
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Screenshot 156: Add vulnerability dialog
4. Go through the General, Description and References tabs while specifying the basic details such as the vulnerability name, short description, security level and OVAL ID (if applicable).
5. Click the Conditions tab and click on the Add button. This will bring up the check properties wizard.
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Screenshot 157: Adding vulnerability checks - Select type of check
6. Select Independent checks > VBScript node and click Next.
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Screenshot 158: Adding vulnerability checks - Select VB Script file
7. Click Choose file and select the custom VBscript file that will be executed by this check. Click Next.
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Screenshot 159: Adding vulnerability checks - Define conditions
8. Select the relative condition setup in the wizard to finalize script selection. Click Finish to exit wizard.
9. Click OK to save new vulnerability check.
Step 3: Test the vulnerability check/script
Scan your local host computer using the scanning profile where the new check was added.
In Scan tab > Results, a vulnerability warning will be shown in the Vulnerability Assessment node of the scan results.
14.2 Creating custom scripts using Python Scripting
GFI LanGuard also supports a new type of vulnerability checks – Python Script Test. This type of check is available under the Independent Checks type.
Important
For information about Python Scripting, refer to the GFI LanGuard scripting documentation from Start > Programs > GFI LanGuard 2012 > GFI LanGuard Scripting
Documentation.
To add a new python script check:
1. Launch GFI LanGuard.
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2. Click the GFI LanGuard button and select Configuration > Scanning Profile Editor. Alternatively, press CTRL + P to launch the Scanning Profiles Editor.
3. In the new window, add a new vulnerability by clicking Add under the list of vulnerability checks.
Screenshot 160: Add vulnerability dialog
4. Go through the General, Description and References tabs while specifying the basic details such as the vulnerability name, short description, security level and OVAL ID (if applicable).
5. Click the Conditions tab and click on the Add button. This will bring up the check properties wizard.
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Screenshot 161: Adding vulnerability checks - Select type of check
6. Select Independent checks > Independent Python Script Test node and click Next.
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Screenshot 162: Adding vulnerability checks - Select Python Script file
7. Click Choose file and select the custom Python Script file that will be executed by this check. Click
Next.
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Screenshot 163: Adding vulnerability checks - Defining conditions
8. Select the relative condition setup in the wizard to finalize script selection. Click Finish to exit wizard.
9. Click OK to save new vulnerability check.
14.3 SSH Module
GFI LanGuard includes an SSH module which handles the execution of vulnerability scripts on
Linux/UNIX based systems.
The SSH module determines the result of vulnerability checks through the console (text) data produced by an executed script. This means that you can create custom Linux/UNIX vulnerability checks using any scripting method that is supported by the target operating system.
14.3.1 Keywords
The SSH module can run security scanning scripts through its terminal window. When a security scan is launched on Linux/UNIX based target computers, vulnerability checking scripts are copied through an SSH connection to the respective target computer and run locally.
The SSH connection is established using the logon credentials (i.e. username and password/SSH
Private Key file) specified prior to the start of a security scan.
The SSH module can determine the status of a vulnerability check through specific keywords present in the text output of the executed script. These keywords are processed by the module and interpreted as instruction for the GFI LanGuard. Standard keywords identified by the SSH module include the following:
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Table 89: Vulnerability keywords
Keyword Description
TRUE: / FALSE These strings indicate the result of the executed vulnerability check/script. When the SSH module detects a TRUE: it means that the check was successful; FALSE: indicates that the vulnerability check has failed.
AddListItem This string triggers an internal function that adds results to the vulnerability check report (i.e. scan results). These results are shown in the GFI LanGuard management console after completion of a scan.
This string is formatted as follows:
AddListItem([[[[parent node]]]],[[[[actual string]]]])
[[[[parent node]]]]
[[[[actual string]]]]
Includes the name of the scan results node to which the result will be added.
Includes the value that will be added to the scan results node.
Note
Each vulnerability check is bound to an associated scan result node. This means that
‘AddListItem’ results are by default included under an associated/default vulnerability node. In this way, if the parent node parameter is left empty, the function will add the specified string to the default node.
SetDescription This string triggers an internal function that will overwrite the default description of a vulnerability check with a new description. This string is formatted as follows: SetDescription([New description])
!!SCRIPT_FIN-
ISHED!!
This string marks the end of every script execution. The SSH module will keep looking for this string until it is found or until a timeout occurs. If a timeout occurs before the ‘!!SCRIPT_FINISHED!!’ string is generated, the SSH module will classify the respective vulnerability check as failed.
Note
It is imperative that every custom script outputs the ‘!!SCRIPT_FINISHED!!’ string at the very end of its checking process.
14.3.2 Adding a vulnerability check that uses a custom shell script
In the following example a vulnerability check is created (for Linux based targets) which uses a script written in Bash. The vulnerability check in this example will test for the presence of a dummy file called ‘test.file’
Step 1: Create the script
1. Launch your favorite text file editor.
2. Create a new script using the following code:
#!/bin/bash if [ –e test.file ] then echo "TRUE:" else echo "FALSE:" fi echo "!!SCRIPT_FINISHED!!"
3. Save the file in <GFI LanGuard 2011 installation folder path>
..\Data\Scripts\myscript.sh
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Step 2: Add the new vulnerability check
1. Launch GFI LanGuard.
2. Click the GFI LanGuard button and select Configuration > Scanning Profile Editor. Alternatively, press CTRL + P to launch the Scanning Profiles Editor.
3. From the middle pane, select the category in which the new vulnerability check will be included
(for example, High Security Vulnerabilities…).
4. In the new window, add a new vulnerability by clicking Add in the middle pane.
Screenshot 164: Add vulnerability dialog
5. Go through the General, Description and Reference tabs while specifying the basic details such as the vulnerability name, short description, security level and OVAL ID (if applicable).
6. Choose the Conditions tab and click Add button. This will bring up the check properties wizard.
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Screenshot 165: Adding vulnerability checks - Select type of check
7. Select Unix checks > SSH Script Test node and click on Next button to continue setup.
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Screenshot 166: Adding vulnerability checks - Select SSH file
8. Click Choose file and select the custom SSH Script file that will execute during this check. Click
Next to proceed.
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Screenshot 167: Adding vulnerability checks - Define conditions
9. Select the relative condition setup in the wizard to finalize script selection. Click Finish to exit wizard.
10. Click OK to save new vulnerability check.
Step 3: Test the vulnerability check/script used in the example
Scan your local host computer using the scanning profile where the new check was added.
1. Log on to a Linux target computer and create a file called ‘test.file’. This check will generate a vulnerability alert if a file called 'test.file' is found.
2. Launch a scan on the Linux target where you created the file.
3. Check you scan results.
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15 Miscellaneous
This chapter contains information about configuring NetBIOS on your computers and how to uninstall
GFI LanGuard.
Topics in this chapter:
15.2 Uninstalling GFI LanGuard
15.1 Configuring NetBIOS
To check if your scan targets are using NetBIOS:
1. Navigate to Control Panel > Network and Internet > Network and Sharing Center > Change
adapter settings.
Note
In Windows
®
XP, click Control Panel > Network Connections.
2. Right–click on Local Area Connection and select Properties.
3. Click Internet Protocol (TCP/IP) and select Properties.
4. Click Advanced > WINS.
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Screenshot 168: Local Areas Connection properties: WINS tab
5. From the NetBIOS setting area, ensure that Default or Enable NetBIOS over TCP/IP are selected.
6. Click OK and exit the Local Area Properties dialog(s).
Note
If static IP is being used or the DHCP server does not provide NetBIOS setting, select the
Enable NetBIOS over TCP/IP option.
15.2 Uninstalling GFI LanGuard
To uninstall GFI LanGuard:
1. Click Start > Control Panel > Add or Remove Programs.
2. Select GFI LanGuard from the list, and click Remove.
3. In the uninstall wizard, click Next.
4. Select the configuration data files to remove during un–installation and click Next.
5. On completion, click Finish.
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16 Troubleshooting and support
This chapter explains how to resolve issues encountered while using GFI LanGuard. These issues can be resolved using the contents of this Administrator Guide. If any issues remain unresolved after reviewing the manual, check if your problem is listed below.
Refer to the following sections for information about resolving common issues and contacting our support team.
Topics in this chapter:
16.2 Using the Troubleshooter Wizard
16.5 Requesting technical support
16.1 Resolving common issues
The table below provides you with solutions to the most common problems you may encounter when using GFI LanGuard:
Table 90: GFI LanGuard common Issues
Issue Encountered
Failed to connect to database error is encountered when trying to configure the database backend.
The database structure is incorrect. Do you want to delete and recreate the database? Warning is encountered when trying to configure the database backend.
Solution/Description
Description
This issue may occur when the following two conditions are met:
1. GFI LanGuard is installed on Windows 2000 SP4 with MDAC 2.5 SP 3
2. The database backend is SQL Server
® different from the SQL Server
® having the database instance name machine name.
Solution
Install Microsoft ® Data Access Components (MDAC 2.6 or later) on GFI
LanGuard machine and try again.
MDAC can be downloaded from: http://go.gfi.com/?pageid=download_mdac
Description
This issue occurs when the database structure is corrupted.
Or
The database returns a timeout because the connection cannot be established.
Solution
When this message is encountered: Check that all SQL credentials are correct and there are no connectivity problems between the GFI LanGuard machine and the SQL server. It is important to note that when OK is clicked all saved scans are lost.
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Issue Encountered
When trying to access the Change database tab while configuring an SQL database, a Failed to connect to database error is encountered
Solution/Description
Description
This issue may occur when the following two conditions are met:
GFI LanGuard is installed on Windows 2000 SP4 with MDAC 2.5 SP 3.
The database backend is SQL Server
® name different from the SQL Server
® having the database instance machine name.
Solution
Install Microsoft
®
Data Access Components (MDAC 2.6 or later) on the GFI
LanGuard machine and try again.
Note
MDAC can be downloaded from: http://go.gfi.com/?pageid=download_ mdac
Incomplete results and errors when scanning remote machines
Description
Errors similar to the following may be encountered:
Failed to open test key to remote registry
The scan will not continue
Access Denied
Could not connect to remote SMB server.
These errors may be encountered because:
The remote machine has an account similar to the one used by GFI Lan-
Guard to log in as an administrator.
The user account used by GFI LanGuard does not have administrative privileges.
Solution
To solve this issue do one of the following:
Log on the GFI LanGuard machine and configure GFI LanGuard to use an alternate domain administrator account.
Delete the local user account on the remote machine.
Launch GFI LanGuard executable with ‘Run As’ using a Domain Administrator account.
GFI LanGuard program updates not working
Note
For more information, refer to http://go.gfi.com/?pageid=LAN_
ProbScanningRM
Description
Updates will not work if GFI LanGuard machine does not have a direct connection to the Internet.
Solution
To solve this issue do one of the following:
Configure GFI LanGuard machine to have direct Internet access.
Install another instance of GFI LanGuard on a machine with Internet access and configure GFI LanGuard to check for updates from the new installation.
Note
For more information refer to http://go.gfi.com/?pageid=LAN_
CheckAltUpdates
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Issue Encountered
Firewall installed on GFI LanGuard is blocking connection with target computers
Solution/Description
Description
Scanning might slow down or be blocked if a firewall is installed on GFI
LanGuard machine.
Solution
Configure the firewall to allow the following components in outbound connections:
<..\Program Files\GFI\LanGuard>\*.exe
<..\Program Files\GFI\LanGuard Agent>\*.exe
GFI LanGuard is failing to retrieve workgroup computers when using Enumerate
Computers
Note
For more information, refer to http://go.gfi.com/?pageid=LAN_
SetBestPerformance
Description
GFI LanGuard uses the Windows mechanism to retrieve the machines within a workgroup. In this mechanism a Master Browser computer will create and store a list of all computers. In some cases, the Master Browser role can fail resulting in GFI LanGuard not retrieving computers information.
GFI LanGuard found open ports that another port scanner found closed
Note
To solve this issue, refer to http://go.gfi.com/?pageid=LAN_
CannotEnumerate
Description
GFI LanGuard uses a different approach than other port scanners to detect open ports.
Solution
To view the status of a port and determine if the port is closed or opened:
1. Click Start > Programs > Accessories > Command Prompt.
2. Key in netstat –an, and press Enter.
3. The generated list displays all computer active connections.
16.2 Using the Troubleshooter Wizard
The GFI LanGuard troubleshooter wizard is a tool designed to assist you when encountering technical issues related to GFI LanGuard. Through this wizard, you are able to automatically detect and fix common issues as well as gather information and logs to send to our technical support team.
To use the Troubleshooter Wizard:
1. Launch the troubleshooting wizard from the Start > Programs > GFI LanGuard 2012 > GFI
LanGuard 2012 Troubleshooter.
2. Click Next in the introduction page.
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Screenshot 169: Troubleshooter wizard – Information details
3. In the Information details page select one of the following options described below:
Table 91: Information gathering options
Option
Automatically detect and fix known issues
Gather only application information and logs
Description
(Recommended) Configure GFI LanGuard to automatically detect and fix issues.
Gather logs to send to GFI support.
4. Click Next to continue.
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Screenshot 170: Troubleshooter wizard – Gathering information about known issues
5. The troubleshooter wizard will retrieve all the information required to solve common issues. Click
Next to continue.
6. The troubleshooter will fix any known issues that it encounters. Select Yes if your problem was fixed or No if your problem is not solved to search the GFI Knowledge base for information.
16.3 GFI SkyNet
GFI maintains a comprehensive knowledge base repository, which includes answers to the most common problems. GFI SkyNet always has the most up-to-date listing of technical support questions and patches. In case that the information in this guide does not solve your problems, next refer to GFI
SkyNet by visiting http://kb.gfi.com/ .
16.4 Web Forum
User to user technical support is available via the GFI web forum. Access the web forum by visiting http://forums.gfi.com
16.5 Requesting technical support
If none of the resources listed above enable you to solve your issues, contact the GFI Technical
Support team by filling in an online support request form or by phone.
Online: Fill out the support request form and follow the instructions on this page closely to submit your support request on: http://support.gfi.com/supportrequestform.asp
Phone: To obtain the correct technical support phone number for your region visit: http://www.gfi.com/company/contact.htm
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Note
Before contacting Technical Support, have your Customer ID available. Your Customer
ID is the online account number that is assigned to you when first registering your license keys in the GFI Customer Area at: http://customers.gfi.com
.
We will answer your query within 24 hours or less, depending on your time zone.
Documentation
If this manual does not satisfy your expectations, or if you think that this documentation can be improved in any way, let us know via email on [email protected]
.
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17 Appendix 1 - Data Processed
When auditing networks, GFI LanGuard enumerates and processes the following information. This information is collected from scan targets using the ports and protocols described in the following sections.
Topics in this chapter:
17.1 System Patching Status
Data
Missing Service Packs and
Update Rollups
Missing Security Updates
Missing Non-Security Updates
Description
Discovers missing Microsoft
® and non-Microsoft
® service packs.
Discovers missing Microsoft patches.
Lists installed Microsoft service packs.
®
® and non-Microsoft and non-Microsoft
®
®
Ports
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
Protocol
SMB
File and printer sharing
Remote registry
Windows update agent.
SMB
File and printer sharing
Remote registry
Windows update agent.
SMB
File and printer sharing
Remote registry
Windows update agent.
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Data
Installed Service Packs and
Update Rollups
Installed Security Updates
Description
Lists installed Microsoft
® and non-Microsoft
® patches.
Lists installed Microsoft
® and non-Microsoft
® service packs.
Installed Non-Security Updates Lists installed Microsoft
® and non-Microsoft
® patches.
Ports
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
Protocol
SMB
File and printer sharing
Remote registry
Windows update agent.
SMB
File and printer sharing
Remote registry
Windows update agent.
SMB
File and printer sharing
Remote registry
Windows update agent.
17.2 Ports
Data
Open TCP ports
Open UDP ports
Description
Checks for open TCP ports.
Checks for open UDP ports.
Ports
All enabled ports in the scan profile.
All enabled ports in the scan profile.
17.3 Hardware
Data
Network devices
Description
Lists physical and virtual network adapters.
Protocol
Windows sockets.
Windows sockets.
Ports
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
Protocol
SMB
File and printer sharing
Remote registry
WMI.
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Data
Local drives
Processors
Motherboards
Memory details
Storage details
Description
Lists drives discovered on scanned target(s). Local drives include:
Hard disks
CD/DVD drives
Floppy drives
Lists processors discovered during a scan.
Lists motherboards discovered during a scan.
Returns memory information of scanned target(s), including:
Total physical memory
Free physical memory
Total virtual memory
Free virtual memory.
Lists every storage device discovered during a scan. Storage devices include:
Hard disks
Virtual hard disks
Removable disks
Floppy drives
Display adapters
CD/DVD drives.
Lists video cards discovered during a scan
Ports
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
File and printer sharing
Remote registry
WMI.
SMB
File and printer sharing
Remote registry
WMI.
SMB
File and printer sharing
Remote registry
WMI.
Protocol
SMB
File and printer sharing
Remote registry
WMI.
SMB
File and printer sharing
Remote registry
WMI.
SMB
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
SMB
File and printer sharing
Remote registry
WMI.
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Data
USB Devices
Description
Lists all the detected USB devices that are attached to the network/scan targets.
Other devices
Lists generic devices discovered during a scan, including:
System devices/drivers
Human Interface Devices (HID)
Mouse and keyboard
Communication ports (Serial and Parallel)
Floppy disk controllers
Hard disk controllers.
17.4 Software
Data
General applications
Antiphishing applications
Antispyware applications
Antivirus applications
Ports
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
TCP 139
TCP 445
DCOM
135
DCOM dynamic.
Protocol
SMB
File and printer sharing
Remote registry
WMI.
SMB
File and printer sharing
Remote registry
WMI.
Description
Enumerates every application installed on the scan target(s).
Lists antiphishing applications.
Lists antispyware applications.
Lists antivirus applications.
Ports
TCP
139
TCP
445
TCP
139
TCP
445
TCP
139
TCP
445
TCP
139
TCP
445
Protocol
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
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Data
Backup applications
Data Loss Prevention
Device Access Control
Disk Encryption
Firewall applications
Health Agent
Instant Messenger
Patch management applications
Description
Lists backup applications.
Lists Data Loss Prevention applications.
Lists Device Access Control applications.
Lists Disk Encryption applications.
Lists firewall applications.
Lists system health monitoring applications.
Lists Instant Messenger applications.
Lists patch management applications.
Ports
TCP
139
TCP
445
TCP
139
TCP
445
TCP
139
TCP
445
TCP
139
TCP
445
TCP
139
TCP
445
TCP
139
TCP
445
TCP
139
TCP
445
TCP
139
TCP
445
Protocol
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
GFI LanGuard 17 Appendix 1 - Data Processed | 255
Data
Peer To Peer
URL Filtering
Virtual Machine Software
Virtual Private Network (VPN) Client applications
Web Browser applications
Description
Lists Peer to Peer (P2P) applications.
Lists web filtering applications.
Lists virtualization software detected on your network.
Lists VPN client applications.
Lists web browsers.
Ports
TCP
139
TCP
445
TCP
139
TCP
445
TCP
139
TCP
445
TCP
139
TCP
445
TCP
139
TCP
445
Protocol
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
SMB
File and printer sharing
Remote registry
Note
For a full list of supported security applications including vendors and products, refer to http://go.gfi.com/?pageid=security_app_fullreport
17.5 System Information
Data
Shares
Description
Lists all shares discovered during a scan. Shares information include:
Share name
Share remark
Share path
Share permissions.
Ports
TCP
139
TCP
445.
Protocol
SMB
File and printer sharing
Remote registry
GFI LanGuard 17 Appendix 1 - Data Processed | 256
Data
Password policy
Security audit policy
Description
Lists password policy configuration.
Security audit policy configuration.
Registry
NetBIOS names
Computer
Groups
Lists selected information from the system registry. Amongst others, enumerated information includes:
Registry owner
Current build number
Current type
Current version
Vendor identifier
Software type.
Lists NetBIOS names of the scanned target(s). This node includes:
Workstation service
Domain name
File server services
Browser service elections.
Lists computer identifiers including:
MAC address
Time to live
Network role
OS Serial number
Language
Machine type (physical or virtual).
Lists local or domain/workgroup groups.
Ports
TCP
139
TCP
445.
TCP
139
TCP
445.
TCP
139
TCP
445.
Protocol
SMB
File and printer sharing
Remote registry.
SMB
File and printer sharing
Remote registry.
SMB
File and printer sharing
Remote registry.
TCP
139
TCP
445.
TCP
139
TCP
445.
Users Lists local or domain/workgroup users.
TCP
139
TCP
445.
TCP
139
TCP
445.
SMB
File and printer sharing
Remote registry.
SMB
File and printer sharing
Remote registry.
SMB
File and printer sharing
Remote registry.
SMB
File and printer sharing
Remote registry.
GFI LanGuard 17 Appendix 1 - Data Processed | 257
Data
Logged on users
Sessions
Services
Processes
Description
Lists locally and remotely logged on users.
Lists the active sessions at the time of the scan.
Lists every service discovered during a scan.
Lists every active process discovered during a scan.
Remote TOD
(time of day)
Lists the current time and uptime of the scanned target(s).
Ports
TCP
139
TCP
445.
TCP
139
TCP
445.
TCP
139
TCP
445.
TCP
139
TCP
445
TCP
139
TCP
445.
Protocol
SMB
File and printer sharing
Remote registry.
SMB
File and printer sharing
Remote registry.
SMB
File and printer sharing
Remote registry.
SMB
File and printer sharing
Remote registry.
SMB
File and printer sharing
Remote registry.
GFI LanGuard 17 Appendix 1 - Data Processed | 258
18 Appendix 2 - Certifications
GFI LanGuard is OVAL and CVE certified. The following sections describe each certification and explain how they are used in GFI LanGuard.
Topics in this chapter:
18.1 Open Vulnerability and Assessment Language (OVAL)
18.2 Common Vulnerabilities and Exposures (CVE)
18.1 Open Vulnerability and Assessment Language (OVAL)
Open Vulnerability and Assessment Language (OVAL™) is an international, information security, community standard to promote open and publicly available security content, and to standardize the transfer of this information across the entire spectrum of security tools and services. OVAL includes a language used to encode system details, and an assortment of content repositories held throughout the OVAL community. The language standardizes the three main steps of the assessment process:
Representing configuration information of systems for testing
Analyzing the system for the presence of the specified machine state (vulnerability, configuration, patch state, etc.)
Reporting the results of this assessment.
The repositories are collections of publicly available and open content that utilize the language.
The OVAL community has developed three XML schemas to serve as the framework and vocabulary of the OVAL Language. These schemas correspond to the three steps of the assessment process:
An OVAL System Characteristics schema for representing system information
An OVAL Definition schema for expressing a specific machine state
An OVAL Results schema for reporting the results of an assessment
Content written in OVAL Language is located in one of the many repositories found within the community. One such repository, known as the OVAL Repository, is hosted by MITRE Corporation. It is the central meeting place for the OVAL Community to discuss, analyze, store, and disseminate OVAL
Definitions. Each definition in the OVAL Repository determines whether a specified software vulnerability, configuration issue, program, or patch is present on a system.
The information security community contributes to the development of OVAL by participating in the creation of the OVAL Language on the OVAL Developers Forum and by writing definitions for the OVAL
Repository through the OVAL Community Forum. An OVAL Board consisting of representatives from a broad spectrum of industry, academia, and government organizations from around the world oversees and approves the OVAL Language and monitors the posting of the definitions hosted on the OVAL Web site. This means that the OVAL, which is funded by US–CERT at the U.S. Department of Homeland
Security for the benefit of the community, reflects the insights and combined expertise of the broadest possible collection of security and system administration professionals worldwide.
18.1.1 GFI LanGuardOVAL Support
GFI LanGuard supports all checks defined in the XML file issued by OVAL, with the exception of HP–UX checks.
GFI LanGuard 18 Appendix 2 - Certifications | 259
GFI LanGuard does not support HP–UX based machines and therefore it is beyond the scope of this product to include these checks within its check definition database.
18.1.2 About OVAL Compatibility
OVAL Compatibility is a program established to develop consistency within the security community regarding the use and implementation of OVAL. The main goal of the compatibility program is to create a set of guidelines that will help enforce a standard implementation. An offshoot of this is that users are able to distinguish between, and have confidence in, compatible products knowing that the implementation of OVAL coincides with the standard set forth.
For a product or service to gain official OVAL Compatibility, it must adhere to the Requirements and
Recommendations for OVAL Compatibility and complete the formal OVAL Compatibility Process.
OVAL Compatibility means that GFI LanGuard incorporates OVAL in a pre–defined, standard way and uses OVAL for communicating details of vulnerabilities, patches, security configuration settings, and other machine states.
18.1.3 Submitting OVAL listing error reports
Any issues with the GFI LanGuard or the listing of the OVAL checks included with GFI LanGuard should be reported to GFI through its official support lines.
GFI Software Ltd will endeavor to look into any issues reported and if any inconsistency or error is ascertained, it will issue updates to fix such issues. Vulnerability check updates are usually released on monthly basis.
18.2 Common Vulnerabilities and Exposures (CVE)
CVE (Common Vulnerabilities and Exposures) is a list of standardized names for vulnerabilities and other information security exposures. Its aim is to standardize the names for all publicly known vulnerabilities and security exposures.
CVE is a dictionary which aim is to facilitate data distribution across separate vulnerability databases and security tools. CVE makes searching for information in other databases easier and should not be considered as a vulnerability database by itself.
CVE is a maintained through a community–wide collaborative effort known as the CVE Editorial Board.
The Editorial Board includes representatives from numerous security–related organizations such as security tool vendors, academic institutions, and governments as well as other prominent security experts. The MITRE Corporation maintains CVE and moderates editorial board discussions.
18.2.1 About CVE Compatibility
"CVE–compatible" means that a tool, Web site, database, or service uses CVE names in a way that allows it to cross–link with other repositories that use CVE names. CVE–compatible products and services must meet the four requirements:
Table 92: CVE Compatibility
Compatibility Description
CVE Searchable A user must be able to search for vulnerabilities and related information using the CVE name.
CVE Output Information provided must include the related CVE name(s).
Mapping The repository owner must provide a mapping relative to a specific version of CVE, and must make a good faith effort to ensure accuracy of that mapping.
Documentation The organization’s standard documentation must include a description of CVE, CVE compatibility, and the details of how its customers can use the CVE–related functionality of its product or service.
GFI LanGuard 18 Appendix 2 - Certifications | 260
Note
For an in–depth understanding of CVE compatibility refer to the complete list of CVE requirements available at http://go.gfi.com/?pageid=LAN_CVE_Requirements
18.2.2 About CVE and CAN
CVE names (also called "CVE numbers," "CVE–IDs," and "CVEs") are unique, common identifiers for publicly known information security vulnerabilities. CVE names have "entry" or "candidate" status.
Entry status indicates that the CVE name has been accepted to the CVE List while candidate status
(also called "candidates," "candidate numbers," or "CANs") indicates that the name is under review for inclusion in the list.
Each CVE name includes the following:
CVE identifier number (i.e. "CVE–1999–0067").
Indication of "entry" or "candidate" status.
Brief description of the security vulnerability or exposure.
Any pertinent references (i.e., vulnerability reports and advisories or OVAL–ID).
Note
For an in–depth understanding of CVE names and CANs, refer to: http://go.gfi.com/?pageid=cvecert
18.2.3 Searching for CVE Entries
CVE entries can be searched from the Scanning profiles node within the Configuration tab.
Screenshot 171: Searching for CVE information
To search for a particular CVE bulletin:
1. Specify the bulletin name (for example, CVE–2005–2126) in the search tool entry box included at the bottom of the right pane.
2. Click on Find to start searching for your entry.
18.2.4 Obtaining CVE Names
CVE entry names can be obtained through the GFI LanGuard user interface from within the Scanning profiles node within the Configuration tab. By default, the CVE ID is displayed for all the vulnerabilities that have a CVE ID.
18.2.5 Importing and Exporting CVE Data
GFI LanGuard 18 Appendix 2 - Certifications | 261
19 Glossary
A
Access™
A Microsoft® desktop relational database management system included in the Microsoft®
Office package. Access™ is normally used for small databases.
Active Directory™ (AD)
A technology that provides a variety of network services, including LDAP-like directory services.
Anti-spyware
A software countermeasure that detects spyware installed on a computer without the user's knowledge.
Antivirus
A software countermeasure that detects malware installed on a computer without the user's knowledge.
Apache web server
An open source HTTP server project developed and maintained by the Apache software foundation.
Applications auto-uninstall
An action that enables the auto-uninstall of applications that support silent uninstall from GFI
LanGuard.
Auto-download
A GFI LanGuard technology that automatically downloads missing patches and service packs in all 38 languages.
Auto-patch management
A GFI LanGuard technology that automatically downloads missing Microsoft® updates and deploys them over the network.
Auto-remediation
A GFI LanGuard technology that automatically downloads and deploy missing patches. If an application is blacklisted in GFI LanGuard, auto-remediation will uninstall the application from the target computer during scheduled operations.
B
Backdoor program
An alternative method used to access a computer or computer data over a network.
Batch-files
A text files containing a collection of instructions to be carried out by an operating system or an application.
GFI LanGuard 19 Glossary | 262
Blacklist
A list of USBs or Network devices names that are considered as dangerous. When a USB\Network device name contains a blacklisted entry while scanning a network, GFI LanGuard will report the device as a security threat (High security vulnerability).
Bluetooth
An open wireless communication and interfacing protocol that enables exchange of data between devices.
Bulletin Information
Contains a collection of information about a patch or a Microsoft® update. Used in GFI Lan-
Guard to provide more information on an installed patch or update. Information includes; Bulletin id, title, description, URL and file size.
C
Common Gateway Interface (CGI)
A communication script used by web servers to transfer data to a client internet browser.
Common Vulnerabilities and Exposures (CVE)
A list of standardized names for vulnerabilities and other information security exposures. The aim of CVE is to standardize the names for all publicly known vulnerabilities and security exposures.
D
Dashboard
A graphical representation that indicates the status of various operations that might be currently active, or that are scheduled.
Demilitarized Zone (DMZ)
A section of a network that is not part of the internal network and is not directly part of the
Internet. Its purpose typically is to act as a gateway between internal networks and the internet.
deploycmd.exe
A GFI LanGuard command line tool, used to deploy Microsoft® patches and third party software on target computers.
DMZ
A section of a network that is not part of the internal network and is not directly part of the
Internet. Its purpose typically is to act as a gateway between internal networks and the internet.
DNS
A database used by TCP/IP networks that enables the translation of hostnames into IP numbers and to provide other domain related information.
GFI LanGuard 19 Glossary | 263
DNS Lookup tool
A utility that converts domain names into the corresponding IP address and retrieves particular information from the target domain
Domain Name System
A database used by TCP/IP networks that enables the translation of hostnames into IP numbers and to provide other domain related information.
E
Enumerate computers tool
A utility that identifies domains and workgroups on a network.
Enumerate users tools
A tools which enables you to retrieve users and user information from your domain/workgroup.
Extensible Markup Language (XML)
An open text standard used to define data formats. GFI LanGuard uses this standard to import or export scanned saved results and configuration.
F
File Transfer Protocol
A protocol used to transfer files between network computers.
FTP
A protocol used to transfer files between network computers.
G
GFI EndPointSecurity
A security solution developed by GFI that helps organizations to maintain data integrity by preventing unauthorized access and transfers from removable devices.
GPO
An Active Directory centralized management and configuration system that controls what users can and cannot do on a computer network.
Group Policy Object (GPO)
An Active Directory centralized management and configuration system that controls what users can and cannot do on a computer network.
I
ICMP pings
The Internet Control Message Protocol (ICMP) is one of the core protocols of the Internet Protocol Suite. It is used by the operating systems of networked computers to send error
GFI LanGuard 19 Glossary | 264
messages indicating, for example, that a requested service is not available or that a host or router could not be reached. ICMP can also be used to relay query messages.
impex.exe
A Command line tool, used to Import and Export profiles and vulnerabilities from GFI Lan-
Guard.
Internet Control Message Protocol (ICMP)
The Internet Control Message Protocol (ICMP) is one of the core protocols of the Internet Protocol Suite. It is used by the operating systems of networked computers to send error messages indicating, for example, that a requested service is not available or that a host or router could not be reached. ICMP can also be used to relay query messages.
Internet Information Services (IIS)
A set of Internet-based services created by Microsoft® Corporation for internet servers.
L
Linux
An open source operating system that is part of the Unix operating system family.
lnsscmd.exe
A GFI LanGuard command line tool that allows running vulnerability checks against network targets.
Local Host
In networking, the local host is the computer you are currently using. One can reference to the local host by using the reserved IP address 127.0.0.1. In this manual the Local host is the machine where GFI LanGuard is installed.
M
Mail server
The server that manages and stores client emails.
Malware
Composed from malicious and software, malware is a general term used for all software developed to harm and damage a computer system. Viruses, worms and Trojans are all type of malware.
Microsoft® Access™ database
A Microsoft® desktop relational database management system included in the Microsoft®
Office package. Microsoft® Access™ is normally used for small databases.
Microsoft® IIS
A set of Internet-based services created by Microsoft® Corporation for internet servers.
GFI LanGuard 19 Glossary | 265
Microsoft® Windows service packs
A collection of updates and fixes provided by Microsoft® to improve an application or an operating system.
Microsoft® WSUS
An acronym for Microsoft® Windows Server Update Services. This service enables administrators to manage the distribution of Microsoft® updates to network computers.
N
NETBIOS
An acronym for Network Basic Input/output. This system provides services to allow applications on different computers within a network to communicate with each other.
Netscape
A web browser originally developed by Netscape Communications Corporation.
O
Open Vulnerability and Assessment Language (OVAL)
A standard that promotes open and publicly available security content, and standardizes the transfer of this information across the entire spectrum of security tools and services.
OVAL
A standard that promotes open and publicly available security content, and standardizes the transfer of this information across the entire spectrum of security tools and services.
P
Patch agent
A background service that handles the deployment of patches, service packs and software updates on target computers.
Python scripting
A high-level computer programming scripting language.
R
Remote Desktop Protocol
A protocol developed by Microsoft® to enable clients to connect with the user interface of a remote computer.
S
SANS
An acronym for System Administration, Networking and Security research organization. An institute that shares solutions regarding system and security alerts.
GFI LanGuard 19 Glossary | 266
Scan profiles
A collection of vulnerability checks that determine what vulnerabilities are identified and which information will be retrieved from scanned targets.
Script Debugger
A GFI LanGuard module that allows you to write and debug custom scripts using a VBScriptcompatible language.
Simple Network Management Protocol (SNMP)
Simple Network Management Protocol is a technology used to monitor network devices such as, routers, hubs and switches.
SNMP
Acronym for Simple Network Management Protocol, a technology used to monitor network devices such as, routers, hubs and switches.
SNMP Auditing tool
A tool that reports weak SNMP community strings by performing a dictionary attack using the values stored in its default dictionary.
SNMP Walk tool
A tool used to probe your network nodes and retrieve SNMP information.
Spyware
A form of malware intended to collect information from a computer without notifying the user.
SQL Server Audit tool
A tool used to test the password vulnerability of the -sa- account (i.e. root administrator), and any other SQL user accounts configured on the SQL Server.
SQL Server®
A Microsoft® relational database management system. Microsoft® included extra functionality to the SQL Server® (transaction control, exception handling and security) so that Microsoft®
SQL server can support large organizations.
SSH Module
A module used to determine the result of vulnerability checks through the console (text) data produced by an executed script. This means that you can create custom Linux/UNIX vulnerability checks using any scripting method that is supported by the target-s Linux/UNIX OS and which outputs results to the console in text.
T
TCP ports
Acronym for Transmitting Control Protocol. This protocol is developed to allow applications to transmit and receive data over the internet using the well-known computer ports.
GFI LanGuard 19 Glossary | 267
Terminal Services
A service that allows connecting to a target computer and managing its installed applications and stored data.
Traceroute tool
A tool used to identify the path that GFI LanGuard followed to reach a target computer.
Trojans
A form of malware that contains a hidden application that will harm a computer.
U
UDP ports
An acronym for User Datagram Protocol, these used to transfer UDP data between devices. In this protocol received packets are not acknowledged.
Uniform Resource Locator (URL)
The Uniform Resource Locator is the address of a web page on the world wide web.
Universal Serial Bus (USB)
A Serial bus standard widely used to connect devices to a host computer.
URL
The Uniform Resource Locator is the address of a web page on the world wide web.
V
VBScript
A Visual Basic Scripting language is a high-level programming language developed by Microsoft®.
Virus
A form of malware that infects a computer. The aim of a virus is to harm a computer by corrupting files and applications. A virus is a self-replicating program and can copy itself all over the computer system.
W
Web server
A server that provides web pages to client browsers using the HTTP protocol.
White-list
A list of USBs or Network devices names that are not considered as dangerous. When a
USB/Network device name contains a white-listed entry while scanning a network, GFI Lan-
Guard will ignore the device and consider it as a safe source.
Whois tool
A tool that enables you to look up information on a particular domain or IP address.
GFI LanGuard 19 Glossary | 268
Wi-Fi/Wireless LAN
A technology used commonly in local area networks. Network nodes use data transmitted over radio waves instead of cables to communicate with each other.
X
XML
An open text standard used to define data formats. GFI LanGuard uses this standard to import or export scanned saved results and configuration.
GFI LanGuard 19 Glossary | 269
20 Index
A
Activity 70, 81, 93, 151, 157-159, 170, 211, 221
Advanced 24, 45, 51, 53-54, 84, 117, 129, 132, 134, 141,
143, 145, 147, 149, 171, 175, 178, 198, 206, 243
Agent 23, 38, 47, 61, 80, 82, 93, 95, 101, 125, 136, 138,
Agent-less 17, 19, 25, 64, 101
Alerting Options 77, 169, 177, 223
Applications scanning options 202
Attributes 46, 50, 62, 86, 88, 96, 161
Audit 61, 69-70, 83, 93, 95, 97, 99-102, 117, 159, 203,
Auto-deployment 116-117, 155 auto-download 70, 117, 155
Auto-remediation 38, 75, 116, 125, 132, 136
B
C
Check 31-32, 41, 62, 109, 119, 155, 228, 243, 245
Client 17, 19, 51, 53, 112, 131, 256
Common Vulnerabilities and Exposures 260
Complete/Combination scans 64, 210
Components 17, 23, 31, 34, 245
Computer 17, 34, 37, 47, 52, 82, 84, 92, 105, 124-125,
130, 132, 136, 138-139, 141, 143, 145, 155, 192,
213, 215, 220-221, 223, 233, 257
Computer Security Overview 160
GFI LanGuard
Computer Tree 47, 54, 61, 67, 80, 84, 88, 106, 125, 140,
Conditions 163, 189, 230, 234, 239, 245
Custom 18, 39, 41, 44, 46, 53, 64, 67, 127, 139, 144-145,
167, 188, 211, 218, 228, 233, 237
D
Dashboard 39-40, 45, 47, 58, 69, 80, 82-84, 88, 90-92, 97-
database retention options 183
Deploy Software Updates 132, 138-139
E
Enumerate Computers 40, 217, 247
F
File and printer sharing 251-252, 254, 256
Find 84, 118, 146, 148, 201, 261
Firewall applications 112, 255
G
Groups 87, 89, 96, 106, 156, 162, 257
H
Hardware 16, 23, 40-41, 66, 87, 91, 96, 102, 111, 161,
Index | 270
I
Human Interface Devices (HID) 254
Import 30, 35, 44-45, 71, 145, 226
Install 18, 30, 35, 149, 169, 173
Installed Non-Security Updates 110, 142, 252
Installed Security Updates 110, 142, 163, 252
Installed Service Packs and Update Rollups 110, 142,
Installing 17, 19, 38, 74, 116, 154, 184, 225
L
Last Scan Security Changes 161
Level 83, 90, 92, 106, 160, 230, 234, 239
M
Management Console 17, 21, 35, 223, 238
Missing Non-Security Updates 110, 139, 251
Missing Security Updates 109, 139, 160, 251
Missing Service Packs and Update Rollups 95, 109,
Monitor 19, 58, 69, 78, 141, 143, 163, 170, 212
N
NetBIOS 26, 138, 210, 217, 243, 257
Network & Software Audit 42, 66, 104, 202
Network devices 66, 111, 204, 210, 252
GFI LanGuard
O
Open Vulnerability and Assessment Language 259
P
Password 34, 44, 69, 112, 145, 147-148, 178, 185, 222-
Ports 23, 27, 65, 91, 93, 96, 100, 110, 203, 211, 247, 251-
Product Updates 51, 63, 154, 158, 208
Profiles 65, 177, 189-190, 200, 203, 210, 261
R
Registry 17, 25, 108, 162, 211, 227, 246, 257
Relay Agents 17, 19, 24, 53, 93
Remediation Center 90, 119, 132, 138, 144-145, 148,
Remediation Jobs 141, 143, 145, 147, 149, 155
Remediation Operations 17, 25, 54, 116, 155
Remote Desktop Connection 139, 149
Remote registry 251-252, 254, 256
S
Index | 271
Scanning Profile Editor 188-189, 200, 210, 229, 234, 239
Scanning Profiles 18, 27, 64, 70, 116-117, 123, 188-189,
200, 202, 210, 223, 229, 234, 239
Scheduled Scans 38, 70, 80, 93, 122, 153
Security Scans 18, 70, 83, 151, 159, 163
Security Updates 26, 38, 64, 95, 119, 144, 153, 160,
Server 17-19, 23, 51, 53, 62, 65, 67, 169, 178, 184, 199,
Shares 53, 66, 112, 127, 143, 162, 204, 211, 256
SMB 17, 26, 246, 251-252, 254, 256
Software 23, 30, 38-42, 66, 80, 91, 94, 96, 101, 108, 116-
117, 127, 138-139, 142, 144, 153-154, 175, 185,
199, 202, 218, 224, 254, 257, 259
Software Audit 41-42, 64, 114-115, 161
System Information 40-41, 65, 91, 103, 112, 161, 202,
System Patching Status 110, 251
T
TCP/UDP port scanning options 202
U
Unauthorized 16, 41, 76, 96, 108, 121, 137, 145, 161,
Unauthorized Applications 94, 116, 161, 207
Uninstall 17, 27, 45, 52, 76, 93, 116, 121, 137
Uninstall Applications 138-139, 145, 174
Uninstall Software Updates 138-139, 142
GFI LanGuard
Users 87, 96, 108, 164, 219, 225, 228, 257, 260
Utilities 212, 215-217, 219-222
V
Vulnerabilities 39-42, 64-65, 88, 90-92, 95, 98, 106, 116,
128, 138, 147, 160, 184, 189, 201, 206, 226, 239,
Vulnerability Assessment 16, 27, 38, 64, 104, 114-115,
Vulnerability Level Rating 104
Vulnerability Management Strategy 38
W
Index | 272
USA, CANADA AND CENTRAL AND SOUTH AMERICA
15300 Weston Parkway, Suite 104 Cary, NC 27513, USA
Telephone: +1 (888) 243-4329
Fax: +1 (919) 379-3402 [email protected]
UK AND REPUBLIC OF IRELAND
Magna House, 18-32 London Road, Staines-upon-Thames, Middlesex, TW18 4BP, UK
Telephone: +44 (0) 870 770 5370
Fax: +44 (0) 870 770 5377 [email protected]
EUROPE, MIDDLE EAST AND AFRICA
GFI House, San Andrea Street, San Gwann, SGN 1612, Malta
Telephone: +356 2205 2000
Fax: +356 2138 2419 [email protected]
AUSTRALIA AND NEW ZEALAND
83 King William Road, Unley 5061, South Australia
Telephone: +61 8 8273 3000
Fax: +61 8 8273 3099 [email protected]
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