System files must be monitored for unauthorized changes.

From Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide

Associated with IA controls: DCSL-1

Associated with: CCI-000366

SV-52215r2_rule System files must be monitored for unauthorized changes.

Vulnerability discussion

Monitoring system files for changes against a baseline on a regular basis may help detect the possible introduction of malicious code on a system.

Check content

Determine whether the site monitors system files (e.g., *.exe, *.bat, *.com, *.cmd, and *.dll) on servers for unauthorized changes against a baseline on a weekly basis. If system files are not monitored for unauthorized changes, this is a finding. A properly configured HBSS Policy Auditor 5.2 or later File Integrity Monitor (FIM) module will meet the requirement for file integrity checking. The Asset module within HBSS does not meet this requirement.

Fix text

Monitor system files (e.g., *.exe, *.bat, *.com, *.cmd, and *.dll) on servers for unauthorized changes against a baseline on a weekly basis. This can be done with the use of various monitoring tools.

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