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Detection rules › Sigma

ETW Logging Disabled For rpcrt4.dll

Severity
low
Author
Nasreddine Bencherchali (Nextron Systems)
Source
upstream

Detects changes to the "ExtErrorInformation" key in order to disable ETW logging for rpcrt4.dll

MITRE ATT&CK coverage

TacticTechniques
PersistenceT1112 Modify Registry
Defense EvasionT1112 Modify Registry, T1562 Impair Defenses

Event coverage

ProviderEvent IDTitle
Sysmon13RegistryEvent (Value Set)

Stages and Predicates

Stage 1: selection

Details: ['DWORD (0x00000000)', 'DWORD (0x00000002)']
TargetObject|endswith: '\Microsoft\Windows NT\Rpc\ExtErrorInformation'

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
Detailseq
  • DWORD (0x00000000) corpus 38 (sigma 38)
  • DWORD (0x00000002) corpus 9 (sigma 9)
TargetObjectends_with
  • \Microsoft\Windows NT\Rpc\ExtErrorInformation