Windows Defender Exclusions Added - Registry — Sigma Rule

Rule metadata and linked tags

Author: Christian Burkard (Nextron Systems). Source status: test; severity: medium. Source dates: 2021-07-06 / 2023-08-17.

{
  "product": "windows",
  "category": "registry_set"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 1f19512c3a12a7ee3cb411d082d53f2fc08ce739449243193991e30a55cfb89b

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 Defender Exclusions Added - Registry
id: a982fc9c-6333-4ffb-a51d-addb04e8b529
related:
    - id: 1321dc4e-a1fe-481d-a016-52c45f0c8b4f
      type: derived
status: test
description: Detects the Setting of Windows Defender Exclusions
references:
    - https://twitter.com/_nullbind/status/1204923340810543109
author: Christian Burkard (Nextron Systems)
date: 2021-07-06
modified: 2023-08-17
tags:
    - attack.defense-impairment
    - attack.t1685
logsource:
    product: windows
    category: registry_set
detection:
    selection2:
        TargetObject|contains: '\Microsoft\Windows Defender\Exclusions'
    condition: selection2
falsepositives:
    - Administrator actions
level: medium

Original YAML and metadata in JSON

False positives

• Administrator actions

Source references

• https://twitter.com/_nullbind/status/1204923340810543109