The Windows Defender Firewall Service Failed To Load Group Policy

calendar Apr 28, 2026 · attack.defense-impairment attack.t1686.003  ·
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Detects activity when The Windows Defender Firewall service failed to load Group Policy

Sigma rule (View on GitHub)

 1title: The Windows Defender Firewall Service Failed To Load Group Policy
 2id: 7ec15688-fd24-4177-ba43-1a950537ee39
 3status: test
 4description: Detects activity when The Windows Defender Firewall service failed to load Group Policy
 5references:
 6    - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-r2-and-2008/dd364427(v=ws.10)
 7author: frack113
 8date: 2022-02-19
 9modified: 2023-01-17
10tags:
11    - attack.defense-impairment
12    - attack.t1686.003
13logsource:
14    product: windows
15    service: firewall-as
16detection:
17    selection:
18        EventID: 2009 # The Windows Defender Firewall service failed to load Group Policy
19    condition: selection
20level: low

References

  • Firewall Rule Processing

    2002 Microsoft-Windows-Windows Firewall with Advanced Security A Windows Firewall setting has changed. New Setting: %tType:%t%1 %tValue:%t%4 %tModifying User:%t%6 %tModifying Application:%t%7 2003 ...


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