Detection rules › Sigma

Forfiles Command Execution

Severity
medium
Author
Tim Rauch, Elastic, E.M. Anhaus (originally from Atomic Blue Detections, Endgame), oscd.community
Source
upstream

Detects the execution of "forfiles" with the "/c" flag. While this is an expected behavior of the tool, it can be abused in order to proxy execution through it with any binary. Can be used to bypass application whitelisting.

MITRE ATT&CK coverage

TacticTechniques
ExecutionT1059 Command and Scripting Interpreter

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation

Stages and Predicates

Stage 1: all of selection_img

or:
Image|endswith: '\forfiles.exe'
OriginalFileName: forfiles.exe

Stage 2: all of selection_cli

CommandLine|contains: ' -c '

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
  • -c corpus 11 (sigma 11)
Imageends_with
  • \forfiles.exe corpus 11 (sigma 11)
OriginalFileNameeq
  • forfiles.exe