Microsoft Defender AV must enable EDR in block mode.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-278674 | SRG-APP-000210 | WNDF-AV-000070 | SV-278674r1190763_rule | 2026-02-17 | 2 |
Description
EDR in block mode allows Microsoft Defender Antivirus to take actions on post-breach, behavioral EDR detections. EDR in block mode is integrated with threat and vulnerability management capabilities.
ℹ️ Check
Verify the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Features >> Enable EDR in block mode 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\Features
Criteria: If the value "PassiveRemediation" is REG_DWORD = 1, this is not a finding.
If the value is 0, this is a finding.
✔️ Fix
Set the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Defender Antivirus >> Features >> Enable EDR in block mode to "Enabled".