McAfee VirusScan On-Access Default Processes Policies must be configured to not exclude any files from being scanned unless exclusions have been documented with, and approved by, the ISSO/ISSM/DAA.

From McAfee VirusScan 8.8 Managed Client STIG

Part of DTAM153--McAfee VirusScan on-access file exclusions

Associated with: CCI-001242

SV-55259r4_rule McAfee VirusScan On-Access Default Processes Policies must be configured to not exclude any files from being scanned unless exclusions have been documented with, and approved by, the ISSO/ISSM/DAA.

Vulnerability discussion

When scanning for malware, excluding specific files will increase the risk of a malware-infected file going undetected. By configuring antivirus software without any exclusions, the scanner has a higher success rate at detecting and eradicating malware.

Check content

From the ePO server console System Tree, select the Systems tab, select the asset to be checked, select Actions, select Agent, and select Modify Policies on a Single System. From the product pull down list, select VirusScan Enterprise 8.8.0. Select from the Policy column the policy associated with the On-Access Default Processes Policies. Under the Exclusions tab, locate the "What not to scan:" label. Ensure there are no exclusions listed. If exclusions are listed, verify they have been documented and approved by the ISSO/ISSM/DAA. Criteria: If there are no exclusions listed in the "What not to scan:" field, this is a not finding. If there are exclusions listed in the "What not to scan:" field, and the exclusions have been documented with, and approved by, the ISSO/ISSM/AO, this is not a finding. If there are exclusions listed in the "What not to scan:" field, and the exclusions have not been documented with, and approved by, the ISSO/ISSM/AO, this is a finding. On the client machine, use the Windows Registry Editor to navigate to the following key: HKLM\Software\McAfee\ (32-bit) HKLM\Software\Wow6432Node\McAfee\ (64-bit) SystemCore\VSCore\On Access Scanner\McShield\Configuration\Default Criteria: If the value NumExcludeItems is 0, this is not a finding. If NumExcludeItems is not 1 or greater, and exclusions have not been documented with and approved by the ISSO/ISSM/AO, this is a finding. If NumExcludeItems is 1 or greater, and exclusions have been approved by the ISSO/ISSM/AO, this is not a finding.

Fix text

From the ePO server console System Tree, select the Systems tab, select the asset to be checked, select Actions, select Agent, and select Modify Policies on a Single System. From the product pull down list, select VirusScan Enterprise 8.8.0. Select from the Policy column the policy associated with the On-Access Default Processes Policies. Under the Exclusions tab, locate the "What not to scan:" label. Remove any exclusions listed.

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