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RedMimicry Winnti Playbook Registry Manipulation — Sigma Rule

Sigma rule 5b175490-b652-4b02-b1de-5b5b4083c5f8. RedMimicry Winnti Playbook Registry Manipulation — Sigma Rule. Detects actions caused by the RedMimicry Winnti playbook

Rule metadata and linked tags

Author: Alexander Rausch. Source status: test; severity: high. Source dates: 2020-06-24 / 2021-11-27.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 802c4b23ba589e5bdcf37491e2bd9335e19fc3d057cb27a19c47e354596490cd

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: RedMimicry Winnti Playbook Registry Manipulation
id: 5b175490-b652-4b02-b1de-5b5b4083c5f8
status: test
description: Detects actions caused by the RedMimicry Winnti playbook
references:
    - https://redmimicry.com
author: Alexander Rausch
date: 2020-06-24
modified: 2021-11-27
tags:
    - attack.persistence
    - attack.defense-impairment
    - attack.t1112
logsource:
    product: windows
    category: registry_event
detection:
    selection:
        TargetObject|contains: HKLM\SOFTWARE\Microsoft\HTMLHelp\data
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

  • Unknown

Source references

Connected ecosystem references

Exact source-tagged techniques

Telemetry review

Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.

Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.