Sigma rule: OpenWith.exe Executes Specified Binary

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-f07d8ec1f213, updated 2021-11-27T00:00:00.000Z.

Rule

Title: OpenWith.exe Executes Specified Binary
Status: test
Level: high
Author: Beyu Denis, oscd.community (rule), @harr0ey (idea)
Date: 2019-10-12
Modified: 2021-11-27
File: rules/windows/process_creation/proc_creation_win_lolbin_openwith.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

The OpenWith.exe executes other binary

Log source

product: windows
category: process_creation

Detection

selection:
    Image|endswith: '\OpenWith.exe'
    CommandLine|contains: '/c'
condition: selection

False positives (as the rule lists them)

Unknown

MITRE ATT&CK ids this rule names

T1218

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_lolbin_openwith.yml

Sources and licences

SigmaHQ
"OpenWith.exe Executes Specified Binary" by Beyu Denis, oscd.community (rule), @harr0ey (idea) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_lolbin_openwith.yml.
Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License
Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: OpenWith.exe Executes Specified Binary",
entity page, dataset version ref-f07d8ec1f213, updated 2021-11-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/cec8e918-30f7-4e2d-9bfa-a59cc97ae60f (accessed 2026-11-03).
Underlying source: SigmaHQ rule cec8e918-30f7-4e2d-9bfa-a59cc97ae60f, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.