The McAfee VirusScan Enterprise for Linux 1.9.x/2.0.x On-Access scanner must be configured to find unknown macro viruses.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-63081	DTAVSEL-006	SV-77571r1_rule		Medium

Description
Interpreted viruses are executed by an application. Within this subcategory, macro viruses take advantage of the capabilities of applications' macro programming language to infect application documents and document templates, while scripting viruses infect scripts that are understood by scripting languages processed by services on the OS. Many attackers use toolkits containing several different types of utilities and scripts that can be used to probe and attack hosts. Scanning for unknown macro viruses will mitigate zero-day attacks.

Description

Interpreted viruses are executed by an application. Within this subcategory, macro viruses take advantage of the capabilities of applications' macro programming language to infect application documents and document templates, while scripting viruses infect scripts that are understood by scripting languages processed by services on the OS. Many attackers use toolkits containing several different types of utilities and scripts that can be used to probe and attack hosts. Scanning for unknown macro viruses will mitigate zero-day attacks.

STIG	Date
McAfee VSEL 1.9/2.0 Local Client Security Technical Implementation Guide	2015-11-30

Details

Check Text ( C-63833r1_chk )
From a desktop browser window, connect to the McAfee VirusScan Enterprise for Linux (VSEL) Monitor (WEB interface) of the Linux system being reviewed and logon with the nails user account. In the VSEL WEB Monitor, under "Configure", select "On-Access Settings". Under "Anti-virus Scanning Options", verify the "Find unknown macro viruses" check box is selected. If the check box "Find unknown macro viruses" is not selected, this is a finding. To validate without the Web interface, access the Linux system being reviewed, either at the console or by a SSH connection. At the command line, navigate to /var/opt/NAI/LinuxShield/etc. Enter the command "grep "macroAnalysis" nailsd.cfg" If the response given is "nailsd.profile.OAS.macroAnalysis: false" or is "nailsd.profile.OAS.macroAnalysis: true" with a preceding #, this is a finding.

Check Text ( C-63833r1_chk )

From a desktop browser window, connect to the McAfee VirusScan Enterprise for Linux (VSEL) Monitor (WEB interface) of the Linux system being reviewed and logon with the nails user account.

In the VSEL WEB Monitor, under "Configure", select "On-Access Settings".
Under "Anti-virus Scanning Options", verify the "Find unknown macro viruses" check box is selected.

If the check box "Find unknown macro viruses" is not selected, this is a finding.

To validate without the Web interface, access the Linux system being reviewed, either at the console or by a SSH connection.
At the command line, navigate to /var/opt/NAI/LinuxShield/etc.
Enter the command "grep "macroAnalysis" nailsd.cfg"
If the response given is "nailsd.profile.OAS.macroAnalysis: false" or is "nailsd.profile.OAS.macroAnalysis: true" with a preceding #, this is a finding.

Fix Text (F-68999r1_fix)
From a desktop browser window, connect to the McAfee VirusScan Enterprise for Linux (VSEL) Monitor (WEB interface) of the Linux system being reviewed and logon with the nails user account. In the VSEL WEB Monitor, under "Configure", select "On-Access Settings". Under "Anti-virus Scanning Options", select the "Find unknown macro viruses" check box. Click "Apply".