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V-278661

CAT II (Medium)

Microsoft Defender AV must enable the file hash computation feature.

Rule ID

SV-278661r1190752_rule

STIG

Microsoft Defender Antivirus Security Technical Implementation Guide

Version

V2R8

CCIs

CCI-001170

Discussion

This policy drives the ability to enforce Indicators of Compromise (IoC) by using file hash allow/block indicators.

Check Content

Verify the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> MpEngine >> Enable file hash computation feature is set to "Enabled"; otherwise, this is a finding.

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

Criteria: If the value "EnableFileHashComputation" is REG_DWORD = 1, this is not a finding.

If the value is 0, this is a finding.

Fix Text

Set the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> MpEngine >>Enable file hash computation feature to "Enabled".