The McAfee VirusScan Enterprise for Linux 1.9.x/2.0.x On-Demand scanner must be configured to decode MIME encoded files.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-63057	DTAVSEL-112	SV-77547r1_rule		Medium

Description
Malware is often packaged within an archive. In addition, archives might have other archives within. Not scanning archive files introduces the risk of infected files being introduced into the environment.

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

Details

Check Text ( C-63809r1_chk )
From the ePO server console System Tree, select "My Organization". Select the "Systems" tab. To show all systems in the System Tree, select "This Group and All Subgroups" from the "Preset:" drop-down list. From the list of systems, locate the asset representing the Linux system being reviewed. Click on the system to open the System Information page. Click on Actions >> Agent >> Modify Tasks on a Single System. From the list of available tasks in the "Task Name" column, with the assistance of the ePO SA, identify the weekly On Demand scan client task. If a weekly On Demand scan client task does not exist, this is a finding. For the designated weekly On Demand scan client task, verify the "Task Type" is listed as "On Demand Scan". Verify the "Status" is listed as "Enabled". Under the "Task Name" column, click on the link for the designated task to review the task properties. In the "Advanced" tab, next to the Compressed files, verify the check box for "Decode MIME encoded files:" has been selected. If the task designated as the regularly scheduled On Demand Scan, next to the Compressed files, the check box for "Decode MIME encoded files:" is not selected, this is a finding.

Check Text ( C-63809r1_chk )

From the ePO server console System Tree, select "My Organization". Select the "Systems" tab. To show all systems in the System Tree, select "This Group and All Subgroups" from the "Preset:" drop-down list.

From the list of systems, locate the asset representing the Linux system being reviewed. Click on the system to open the System Information page.

Click on Actions >> Agent >> Modify Tasks on a Single System.

From the list of available tasks in the "Task Name" column, with the assistance of the ePO SA, identify the weekly On Demand scan client task.

If a weekly On Demand scan client task does not exist, this is a finding.

For the designated weekly On Demand scan client task, verify the "Task Type" is listed as "On Demand Scan".
Verify the "Status" is listed as "Enabled".
Under the "Task Name" column, click on the link for the designated task to review the task properties.
In the "Advanced" tab, next to the Compressed files, verify the check box for "Decode MIME encoded files:" has been selected.

If the task designated as the regularly scheduled On Demand Scan, next to the Compressed files, the check box for "Decode MIME encoded files:" is not selected, this is a finding.

Fix Text (F-68975r1_fix)
From the ePO server console System Tree, select "My Organization". Select the "Systems" tab. To show all systems in the System Tree, select "This Group and All Subgroups" from the "Preset:" drop-down list. From the list of systems, locate the asset representing the Linux system being reviewed. Click on the system to open the System Information page. Click on Actions >> Agent >> Modify Tasks on a Single System. From the list of available tasks in the "Task Name" column, with the assistance of the ePO SA, identify the weekly On Demand scan client task. Under the "Task Name" column, click on the link for the designated task to review the task properties. In the "Advanced" tab, next to the Compressed files, select the check box for "Decode MIME encoded files:". Click "Save".

Fix Text (F-68975r1_fix)