Detection rules › Sigma

Unsigned Image Loaded Into LSASS Process

Severity
medium
Author
Teymur Kheirkhabarov, oscd.community
Source
upstream

Loading unsigned image (DLL, EXE) into LSASS process

MITRE ATT&CK coverage

TacticTechniques
Credential AccessT1003.001 OS Credential Dumping: LSASS Memory

Event coverage

ProviderEvent IDTitle
Sysmon7Image loaded

Stages and Predicates

Stage 1: selection

Image|endswith: '\lsass.exe'
Signed: false

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
  • \lsass.exe corpus 5 (sigma 5)
Signedeq
  • false corpus 8 (sigma 4, splunk 4)