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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-213431	WNDF-AV-000007	SV-213431r823034_rule		Medium

Description

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

STIG	Date
Microsoft Defender Antivirus Security Technical Implementation Guide	2022-04-08

Details

Check Text (C-14656r820140_chk)

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.

Fix Text (F-14654r823033_fix)

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