Detection rules › Sigma

Suspicious Recursive Takeown

Severity
medium
Author
frack113
Source
upstream

Adversaries can interact with the DACLs using built-in Windows commands takeown which can grant adversaries higher permissions on specific files and folders

MITRE ATT&CK coverage

TacticTechniques
Defense EvasionT1222.001 File and Directory Permissions Modification: Windows File and Directory Permissions Modification

Event coverage

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

Stages and Predicates

Stage 1: selection

CommandLine|contains: '/f '
CommandLine|contains: '/r'
Image|endswith: '\takeown.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
CommandLinematch
  • /f corpus 2 (sigma 2)
  • /r corpus 3 (sigma 3)
Imageends_with
  • \takeown.exe