Potential Persistence Attempt Via Existing Service Tampering — Sigma Rule

Rule metadata and linked tags

Author: Sreeman. Source status: test; severity: medium. Source dates: 2020-09-29 / 2023-02-04.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 5f632ffaffab44dd263c9958930fd9542933ebe422855a5053b98c83853a2623

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 Persistence Attempt Via Existing Service Tampering
id: 38879043-7e1e-47a9-8d46-6bec88e201df
status: test
description: Detects the modification of an existing service in order to execute an arbitrary payload when the service is started or killed as a potential method for persistence.
references:
    - https://pentestlab.blog/2020/01/22/persistence-modify-existing-service/
author: Sreeman
date: 2020-09-29
modified: 2023-02-04
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.execution
    - attack.stealth
    - attack.t1543.003
    - attack.t1574.011
logsource:
    category: process_creation
    product: windows
detection:
    selection_sc:
        - CommandLine|contains|all:
              - 'sc '
              - 'config '
              - 'binpath='
        - CommandLine|contains|all:
              - 'sc '
              - 'failure'
              - 'command='
    selection_reg_img:
        - CommandLine|contains|all:
              - 'reg '
              - 'add '
              - 'FailureCommand'
        - CommandLine|contains|all:
              - 'reg '
              - 'add '
              - 'ImagePath'
    selection_reg_ext:
        CommandLine|contains:
            - '.sh'
            - '.exe'
            - '.dll'
            - '.bin$'
            - '.bat'
            - '.cmd'
            - '.js'
            - '.msh$'
            - '.reg$'
            - '.scr'
            - '.ps'
            - '.vb'
            - '.jar'
            - '.pl'
    condition: selection_sc or all of selection_reg_*
falsepositives:
    - Unknown
level: medium

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://pentestlab.blog/2020/01/22/persistence-modify-existing-service/