Detection rules › Sigma

Suspicious Windows Trace ETW Session Tamper Via Logman.EXE

Severity
high
Author
Florian Roth (Nextron Systems)
Source
upstream

Detects the execution of "logman" utility in order to disable or delete Windows trace sessions

MITRE ATT&CK coverage

TacticTechniques
Defense EvasionT1070.001 Indicator Removal: Clear Windows Event Logs, T1562.001 Impair Defenses: Disable or Modify Tools

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation

Stages and Predicates

Stage 1: all of selection_img

or:
Image|endswith: '\logman.exe'
OriginalFileName: Logman.exe

Stage 2: all of selection_action

or:
CommandLine|contains: 'delete '
CommandLine|contains: 'stop '

Stage 3: all of selection_service

or:
CommandLine|contains: 'Circular Kernel Context Logger'
CommandLine|contains: EventLog-
CommandLine|contains: 'SYSMON TRACE'
CommandLine|contains: SysmonDnsEtwSession

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
CommandLinematch
  • Circular Kernel Context Logger
  • EventLog-
  • SYSMON TRACE
  • SysmonDnsEtwSession
  • delete corpus 4 (sigma 4)
  • stop
Imageends_with
  • \logman.exe
OriginalFileNameeq
  • Logman.exe