Detection rules › Sigma

RedMimicry Winnti Playbook Registry Manipulation

Severity
high
Author
Alexander Rausch
Source
upstream

Detects actions caused by the RedMimicry Winnti playbook

MITRE ATT&CK coverage

TacticTechniques
PersistenceT1112 Modify Registry
Defense EvasionT1112 Modify Registry

Event coverage

ProviderEvent IDTitle
Sysmon12RegistryEvent (Object create and delete)
Sysmon13RegistryEvent (Value Set)
Sysmon14RegistryEvent (Key and Value Rename)

Stages and Predicates

Stage 1: selection

TargetObject|contains: 'HKLM\SOFTWARE\Microsoft\HTMLHelp\data'

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
TargetObjectmatch
  • HKLM\SOFTWARE\Microsoft\HTMLHelp\data