Detection rules › Sigma

Execution via WorkFolders.exe

Severity
high
Author
Maxime Thiebaut (@0xThiebaut)
Source
upstream

Detects using WorkFolders.exe to execute an arbitrary control.exe

MITRE ATT&CK coverage

TacticTechniques
Defense EvasionT1218 System Binary Proxy Execution

Event coverage

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

Stages and Predicates

Stage 1: selection

Image|endswith: '\control.exe'
ParentImage|endswith: '\WorkFolders.exe'

Stage 2: not filter

Image: 'C:\Windows\System32\control.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
  • \control.exe corpus 3 (sigma 3)
Imageeq
  • C:\Windows\System32\control.exe
ParentImageends_with
  • \WorkFolders.exe