Detectionlowtest
HH.EXE Execution
Detects the execution of "hh.exe" to open ".chm" files.
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Launch
E.M. Anhaus (originally from Atomic Blue Detections, Dan Beavin), oscd.communityCreated Thu Oct 24Updated Mon Dec 1168c8acb4-1b60-4890-8e82-3ddf7a6dba84windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic2 selectors
detection:
selection_img:
- OriginalFileName: 'HH.exe'
- Image|endswith: '\hh.exe'
selection_cli:
CommandLine|contains: '.chm'
condition: all of selection_*False Positives
False positives are expected with legitimate ".CHM"
References
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
68c8acb4-1b60-4890-8e82-3ddf7a6dba84
Status
test
Level
low
Type
Detection
Created
Thu Oct 24
Modified
Mon Dec 11
Path
rules/windows/process_creation/proc_creation_win_hh_chm_execution.yml
Raw Tags
attack.defense-evasionattack.t1218.001