Service Installation in Suspicious Folder — Sigma Rule

Rule metadata and linked tags

Author: pH-T (Nextron Systems). Source status: test; severity: medium. Source dates: 2022-03-18 / 2024-01-18.

{
  "product": "windows",
  "service": "system"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 8424581d4aabd06ef013df41b998e2caf1b02321acd7aa3723140b4310eff89d

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: Service Installation in Suspicious Folder
id: 5e993621-67d4-488a-b9ae-b420d08b96cb
status: test
description: Detects service installation in suspicious folder appdata
author: pH-T (Nextron Systems)
references:
    - Internal Research
date: 2022-03-18
modified: 2024-01-18
tags:
    - attack.persistence
    - attack.privilege-escalation
    - car.2013-09-005
    - attack.t1543.003
logsource:
    product: windows
    service: system
detection:
    selection:
        Provider_Name: 'Service Control Manager'
        EventID: 7045
        ImagePath|contains:
            - '\AppData\'
            - '\\\\127.0.0.1'
            - '\\\\localhost'
    filter_optional_zoom:
        ServiceName: 'Zoom Sharing Service'
        ImagePath|contains: ':\Program Files\Common Files\Zoom\Support\CptService.exe'
    condition: selection and not 1 of filter_optional_*
falsepositives:
    - Unknown
level: medium

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• Internal Research (source note; no public URL supplied)