Microsoft Defender AV must be configured to monitor for file and program activity.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-213443	WNDF-AV-000019	SV-213443r823058_rule		Medium

Description
This policy setting allows configuration of monitoring for file and program activity. If this setting is enabled or not configured, monitoring for file and program activity will be enabled. If this setting is disabled, monitoring for file and program activity will be disabled.

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

Details

Check Text ( C-14668r820176_chk )
Verify the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Real-time Protection >> "Monitor file and program activity on your computer to be scanned" is set to "Enabled" 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 "DisableOnAccessProtection" 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 Text ( C-14668r820176_chk )

Verify the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Real-time Protection >> "Monitor file and program activity on your computer to be scanned" is set to "Enabled" 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 "DisableOnAccessProtection" 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 (F-14666r823057_fix)
Set the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Real-time Protection >> "Monitor file and program activity on your computer" to "Enabled" or "Not Configured".