Title

Windows Defender AV must be configured to not allow override of behavior monitoring. (Cat II impact)

Discussion

This policy setting configures a local override for the configuration of behavior monitoring. This setting can only be set by Group Policy. If you enable this setting the local preference setting will take priority over Group Policy. If you disable or do not configure this setting Group Policy will take priority over the local preference setting.

Check Content

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

Fix Text

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

Additional Identifiers

Rule ID: SV-213440r569189_rule

Vulnerability ID: V-213440

Group Title: SRG-APP-000210

Expert Comments

CCIs tied to check.

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