Detection rules › Sigma

Potential Credential Dumping Via LSASS SilentProcessExit Technique

Severity
critical
Author
Florian Roth (Nextron Systems)
Source
upstream

Detects changes to the Registry in which a monitor program gets registered to dump the memory of the lsass.exe process

MITRE ATT&CK coverage

TacticTechniques
Credential AccessT1003.001 OS Credential Dumping: LSASS Memory

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: 'Microsoft\Windows NT\CurrentVersion\SilentProcessExit\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
TargetObjectmatch
  • Microsoft\Windows NT\CurrentVersion\SilentProcessExit\lsass.exe