Sigma rule: HH.EXE Execution
A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-00cb8d06df8f, updated 2023-12-11T00:00:00.000Z.
Rule
- Title
- HH.EXE Execution
- Status
- test
- Level
- low
- Author
- E.M. Anhaus (originally from Atomic Blue Detections, Dan Beavin), oscd.community
- Date
- 2019-10-24
- Modified
- 2023-12-11
- File
- rules/windows/process_creation/proc_creation_win_hh_chm_execution.yml
- Commit
- ccbb0369507f796db0b0ae6854c8a2be471b9d84
Detects the execution of "hh.exe" to open ".chm" files.
Log source
- product
- windows
- category
- process_creation
Detection
selection_img:
- OriginalFileName: 'HH.exe'
- Image|endswith: '\hh.exe'
selection_cli:
CommandLine|contains: '.chm'
condition: all of selection_*False positives (as the rule lists them)
- False positives are expected with legitimate ".CHM"
Tags
- attack.stealth
- attack.t1218.001
MITRE ATT&CK ids this rule names
References
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1218.001/T1218.001.md
- https://eqllib.readthedocs.io/en/latest/analytics/b25aa548-7937-11e9-8f5c-d46d6d62a49e.html
- https://www.zscaler.com/blogs/security-research/unintentional-leak-glimpse-attack-vectors-apt37
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_hh_chm_execution.yml
Sources and licences
SigmaHQ
"HH.EXE Execution" by E.M. Anhaus (originally from Atomic Blue Detections, Dan Beavin), oscd.community (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_hh_chm_execution.yml.
Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License
Cite this page
Dragons Eye Ransomware Tracker, "Sigma rule: HH.EXE Execution",
entity page, dataset version ref-00cb8d06df8f, updated 2023-12-11T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/68c8acb4-1b60-4890-8e82-3ddf7a6dba84 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 68c8acb4-1b60-4890-8e82-3ddf7a6dba84, 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.