Detectionhightest
Suspicious JavaScript Execution Via Mshta.EXE
Detects execution of javascript code using "mshta.exe".
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Launch
E.M. Anhaus (originally from Atomic Blue Detections, Endgame), oscd.communityCreated Thu Oct 24Updated Tue Feb 0767f113fa-e23d-4271-befa-30113b3e08b1windows
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:
- Image|endswith: '\mshta.exe'
- OriginalFileName: 'MSHTA.EXE'
selection_cli:
CommandLine|contains: 'javascript'
condition: all of selection_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
67f113fa-e23d-4271-befa-30113b3e08b1
Status
test
Level
high
Type
Detection
Created
Thu Oct 24
Modified
Tue Feb 07
Path
rules/windows/process_creation/proc_creation_win_mshta_javascript.yml
Raw Tags
attack.defense-evasionattack.t1218.005