Suspicious Execution of REGISTER_APP.VBS Proxy (via process_creation)

title: Suspicious Execution of REGISTER_APP.VBS Proxy (via process_creation)
id: 52b89eb2-76ff-5b25-b777-246a605690d5
status: stable
description: This rule detects the use of a Microsoft signed script 'REGISTER_APP.VBS' to register a VSS/VDS Provider as a COM+ application.
references:
    - https://attack.mitre.org/techniques/T1218/
    - https://twitter.com/sblmsrsn/status/1456613494783160325?s=20
author: Huntrule Team
date: 2026-04-11
tags:
    - attack.stealth
    - attack.t1218
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - '\register_app.vbs'
            - '-register'
    condition: selection
falsepositives:
    - Unknown
level: medium