Remote Task Creation via ATSVC Named Pipe — Sigma Rule

Rule metadata and linked tags

Author: Samir Bousseaden. Source status: test; severity: medium. Source dates: 2019-04-03 / 2024-08-01.

{
  "product": "windows",
  "service": "security",
  "definition": "The advanced audit policy setting \"Object Access > Audit Detailed File Share\" must be configured for Success/Failure"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: c293ebc839652e89668684893c50c30ffc9c7c09f3eefe843867eb7aa21e66fe

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: Remote Task Creation via ATSVC Named Pipe
id: f6de6525-4509-495a-8a82-1f8b0ed73a00
status: test
description: Detects remote task creation via at.exe or API interacting with ATSVC namedpipe
references:
    - https://web.archive.org/web/20230409194125/https://blog.menasec.net/2019/03/threat-hunting-25-scheduled-tasks-for.html
author: Samir Bousseaden
date: 2019-04-03
modified: 2024-08-01
tags:
    - attack.privilege-escalation
    - attack.execution
    - attack.lateral-movement
    - attack.persistence
    - car.2013-05-004
    - car.2015-04-001
    - attack.t1053.002
logsource:
    product: windows
    service: security
    definition: 'The advanced audit policy setting "Object Access > Audit Detailed File Share" must be configured for Success/Failure'
detection:
    selection:
        EventID: 5145
        ShareName: '\\\\\*\\IPC$' # looking for the string \\*\IPC$
        RelativeTargetName: atsvc
        AccessList|contains: 'WriteData'
    condition: selection
falsepositives:
    - Unknown
level: medium

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://web.archive.org/web/20230409194125/https://blog.menasec.net/2019/03/threat-hunting-25-scheduled-tasks-for.html