sigmahighHunting

Suspicious JavaScript Execution Via Mshta.EXE

Detects execution of javascript code using "mshta.exe".

MITRE ATT&CK

defense-evasion

Detection Query

selection_img:
  - Image|endswith: \mshta.exe
  - OriginalFileName: MSHTA.EXE
selection_cli:
  CommandLine|contains: javascript
condition: all of selection_*

Author

E.M. Anhaus (originally from Atomic Blue Detections, Endgame), oscd.community

Created

2019-10-24

Data Sources

windowsProcess Creation Events

Platforms

windows

References

Tags

attack.defense-evasionattack.t1218.005

Raw Content

title: Suspicious JavaScript Execution Via Mshta.EXE
id: 67f113fa-e23d-4271-befa-30113b3e08b1
status: test
description: Detects execution of javascript code using "mshta.exe".
references:
    - https://eqllib.readthedocs.io/en/latest/analytics/6bc283c4-21f2-4aed-a05c-a9a3ffa95dd4.html
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1218.005/T1218.005.md
author: E.M. Anhaus (originally from Atomic Blue Detections, Endgame), oscd.community
date: 2019-10-24
modified: 2023-02-07
tags:
    - attack.defense-evasion
    - attack.t1218.005
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\mshta.exe'
        - OriginalFileName: 'MSHTA.EXE'
    selection_cli:
        CommandLine|contains: 'javascript'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high