Potential Privilege Escalation via Service Permissions Weakness — Sigma Rule

Rule metadata and linked tags

Author: Teymur Kheirkhabarov. Source status: test; severity: high. Source dates: 2019-10-26 / 2024-12-01.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: a41cf2e87c38863275bd827b6ac32debc1ce5bfff609e34d3e06c059f793df0b

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: Potential Privilege Escalation via Service Permissions Weakness
id: 0f9c21f1-6a73-4b0e-9809-cb562cb8d981
status: test
description: Detect modification of services configuration (ImagePath, FailureCommand and ServiceDLL) in registry by processes with Medium integrity level
references:
    - https://speakerdeck.com/heirhabarov/hunting-for-privilege-escalation-in-windows-environment
    - https://pentestlab.blog/2017/03/31/insecure-registry-permissions/
author: Teymur Kheirkhabarov
date: 2019-10-26
modified: 2024-12-01
tags:
    - attack.persistence
    - attack.privilege-escalation
    - attack.execution
    - attack.stealth
    - attack.t1574.011
logsource:
    product: windows
    category: process_creation
detection:
    selection:
        IntegrityLevel:
            - 'Medium'
            - 'S-1-16-8192'
        CommandLine|contains|all:
            - 'ControlSet'
            - 'services'
        CommandLine|contains:
            - '\ImagePath'
            - '\FailureCommand'
            - '\ServiceDll'
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://speakerdeck.com/heirhabarov/hunting-for-privilege-escalation-in-windows-environment
• https://pentestlab.blog/2017/03/31/insecure-registry-permissions/