Windows Firewall Settings Have Been Changed — Sigma Rule

Rule metadata and linked tags

Author: frack113, Nasreddine Bencherchali (Nextron Systems). Source status: test; severity: low. Source dates: 2022-02-19 / 2023-04-21.

{
  "product": "windows",
  "service": "firewall-as"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 177b010cec31ea8e3152b3f1128b89d9326083bfb3be3771ba02ca97e595186f

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Windows Firewall Settings Have Been Changed
id: 00bb5bd5-1379-4fcf-a965-a5b6f7478064
status: test
description: Detects activity when the settings of the Windows firewall have been changed
references:
    - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-r2-and-2008/dd364427(v=ws.10)
author: frack113, Nasreddine Bencherchali (Nextron Systems)
date: 2022-02-19
modified: 2023-04-21
tags:
    - attack.defense-impairment
    - attack.t1686.003
logsource:
    product: windows
    service: firewall-as
detection:
    selection:
        EventID:
            - 2002 # A Windows Defender Firewall setting has changed.
            - 2083 # A Windows Defender Firewall setting has changed. (Windows 11)
            - 2003 # A Windows Firewall setting in the profile has changed
            - 2082 # A Windows Defender Firewall setting in the %1 profile has changed. (Windows 11)
            - 2008  # Windows Firewall Group Policy settings have changed. The new settings have been applied
            # - 2010  # Network profile changed on an interface.
    condition: selection
level: low

Original YAML and metadata in JSON

False positives

No reviewed association in this snapshot.

Source references

• https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-r2-and-2008/dd364427(v=ws.10)