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V-213431

CAT II (Medium)

Microsoft Defender AV must be configured to enable the Automatic Exclusions feature.

Rule ID

SV-213431r1207394_rule

STIG

Microsoft Defender Antivirus Security Technical Implementation Guide

Version

V2R9

CCIs

CCI-002624

Discussion

This setting allows an administrator to specify if Automatic Exclusions feature for Server SKUs should be turned off.

Check Content

Verify the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Exclusions >> "Turn off Auto Exclusions" is set to "Disabled".

Procedure: Use the Windows Registry Editor to navigate to the following key: 
HKLM\Software\Policies\Microsoft\Windows Defender\Exclusions

Criteria: If the value "DisableAutoExclusions" is REG_DWORD = 0, this is not a finding.

NOTE: The configuration of WNDF-AV-000100 will likely hide this setting from being reviewed. If compliance can be shown via group policy editor or other means, this is not a finding.

Fix Text

Set the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Exclusions >> "Turn off Auto Exclusions" to "Disabled".