Potential WerFault ReflectDebugger Registry Value Abuse — Sigma Rule

Rule metadata and linked tags

Author: X__Junior. Source status: test; severity: high. Source dates: 2023-05-18 / not supplied.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 4e0ae3c7d98eb30517240a688415ef6636bb57ec50c10eb4cada0613f6c62d5d

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: Potential WerFault ReflectDebugger Registry Value Abuse
id: 0cf2e1c6-8d10-4273-8059-738778f981ad
related:
    - id: fabfb3a7-3ce1-4445-9c7c-3c27f1051cdd
      type: derived
status: test
description: Detects potential WerFault "ReflectDebugger" registry value abuse for persistence.
references:
    - https://cocomelonc.github.io/malware/2022/11/02/malware-pers-18.html
    - https://www.hexacorn.com/blog/2018/08/31/beyond-good-ol-run-key-part-85/
author: X__Junior
date: 2023-05-18
tags:
    - attack.stealth
    - attack.t1036.003
logsource:
    category: registry_set
    product: windows
detection:
    selection:
        TargetObject|endswith: '\Microsoft\Windows\Windows Error Reporting\Hangs\ReflectDebugger'
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://cocomelonc.github.io/malware/2022/11/02/malware-pers-18.html
• https://www.hexacorn.com/blog/2018/08/31/beyond-good-ol-run-key-part-85/