STIGQter: STIG Summary: Microsoft Windows Defender Antivirus Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 04 May 2021:

Windows Defender AV Group Policy settings must take priority over the local preference settings.

DISA Rule

SV-213441r569189_rule

Vulnerability Number

V-213441

Group Title

SRG-APP-000278

Rule Version

WNDF-AV-000017

Severity

CAT II

CCI(s)

• CCI-001242 - The organization configures malicious code protection mechanisms to perform real-time scans of files from external sources at endpoints as the files are downloaded, opened, or executed in accordance with organizational security policy.

Weight

10

Fix Recommendation

Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender Antivirus -> Real-time Protection -> "Configure local setting override to turn on real-time protection" to "Disabled" or "Not Configured".

Check Contents

Verify the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender Antivirus -> Real-time Protection -> "Configure local setting override to turn on real-time protection" is set to "Disabled" or "Not Configured".

Procedure: Use the Windows Registry Editor to navigate to the following key:
HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection

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

If the value does not exist, this is not a finding.

If the value is 1, this is a finding.

Vulnerability Number

V-213441

Documentable

False

Rule Version

WNDF-AV-000017

Severity Override Guidance

Verify the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Defender Antivirus -> Real-time Protection -> "Configure local setting override to turn on real-time protection" is set to "Disabled" or "Not Configured".

Procedure: Use the Windows Registry Editor to navigate to the following key:
HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection

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

If the value does not exist, this is not a finding.

If the value is 1, this is a finding.

Check Content Reference

M

Target Key

3985

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