Detection rules › Sigma

Potential LethalHTA Technique Execution

Severity
high
Author
Markus Neis
Source
upstream

Detects potential LethalHTA technique where the "mshta.exe" is spawned by an "svchost.exe" process

MITRE ATT&CK coverage

TacticTechniques
Defense EvasionT1218.005 System Binary Proxy Execution: Mshta

Event coverage

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

Stages and Predicates

Stage 1: selection

Image|endswith: '\mshta.exe'
ParentImage|endswith: '\svchost.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
  • \mshta.exe corpus 57 (sigma 57)
ParentImageends_with
  • \svchost.exe corpus 8 (sigma 8)