Pubprn.vbs Proxy Execution — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: medium. Source dates: 2022-05-28 / not supplied.

{
  "category": "process_creation",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 018126b112256875a9c6e026edf0711657cab7036bd5bff91ce5bc65cc0890c2

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Pubprn.vbs Proxy Execution
id: 1fb76ab8-fa60-4b01-bddd-71e89bf555da
status: test
description: Detects the use of the 'Pubprn.vbs' Microsoft signed script to execute commands.
references:
    - https://lolbas-project.github.io/lolbas/Scripts/Pubprn/
author: frack113
date: 2022-05-28
tags:
    - attack.stealth
    - attack.t1216.001
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - '\pubprn.vbs'
            - 'script:'
    condition: selection
falsepositives:
    - Unknown
level: medium

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://lolbas-project.github.io/lolbas/Scripts/Pubprn/