Detection rules › Sigma

Potential Credential Dumping Via LSASS Process Clone

Severity
critical
Author
Florian Roth (Nextron Systems), Samir Bousseaden
Source
upstream

Detects a suspicious LSASS process process clone that could be a sign of credential dumping activity

MITRE ATT&CK coverage

TacticTechniques
Credential AccessT1003 OS Credential Dumping, T1003.001 OS Credential Dumping: LSASS Memory

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation
Security-Auditing4688A new process has been created.

Stages and Predicates

Stage 1: selection

Image|endswith: '\Windows\System32\lsass.exe'
ParentImage|endswith: '\Windows\System32\lsass.exe'

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
Imageends_with
  • \Windows\System32\lsass.exe corpus 2 (sigma 2)
ParentImageends_with
  • \Windows\System32\lsass.exe