Disable Security Events Logging Adding Reg Key MiniNt — Sigma Rule

Rule metadata and linked tags

Author: Ilyas Ochkov, oscd.community. Source status: test; severity: high. Source dates: 2019-10-25 / 2021-11-27.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: bfbea47b6211e3ae684472b9570191ea22c760857f88d5f8649f0a9e5c106ebe

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: Disable Security Events Logging Adding Reg Key MiniNt
id: 919f2ef0-be2d-4a7a-b635-eb2b41fde044
status: test
description: Detects the addition of a key 'MiniNt' to the registry. Upon a reboot, Windows Event Log service will stop writing events.
references:
    - https://twitter.com/0gtweet/status/1182516740955226112
    - https://www.hackingarticles.in/defense-evasion-windows-event-logging-t1562-002/
author: Ilyas Ochkov, oscd.community
date: 2019-10-25
modified: 2021-11-27
tags:
    - attack.persistence
    - attack.defense-impairment
    - attack.t1685.001
    - attack.t1112
    - car.2022-03-001
logsource:
    category: registry_event
    product: windows
detection:
    selection:
    # Sysmon gives us HKLM\SYSTEM\CurrentControlSet\.. if ControlSetXX is the selected one
        - TargetObject: 'HKLM\SYSTEM\CurrentControlSet\Control\MiniNt'
          EventType: 'CreateKey'    # we don't want deletekey
    # key rename
        - NewName: 'HKLM\SYSTEM\CurrentControlSet\Control\MiniNt'
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://twitter.com/0gtweet/status/1182516740955226112
• https://www.hackingarticles.in/defense-evasion-windows-event-logging-t1562-002/