CSExec Service File Creation — Sigma Rule

Rule metadata and linked tags

Author: Nasreddine Bencherchali (Nextron Systems). Source status: test; severity: medium. Source dates: 2023-08-04 / not supplied.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 67b851d265889f21172a0c92685f1bb876d324e088349a97a15e5a5884460ccc

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: CSExec Service File Creation
id: f0e2b768-5220-47dd-b891-d57b96fc0ec1
status: test
description: Detects default CSExec service filename which indicates CSExec service installation and execution
references:
    - https://github.com/malcomvetter/CSExec
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-08-04
tags:
    - attack.execution
    - attack.t1569.002
    - attack.s0029
logsource:
    category: file_event
    product: windows
detection:
    selection:
        TargetFilename|endswith: '\csexecsvc.exe'
    condition: selection
falsepositives:
    - Unknown
level: medium

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://github.com/malcomvetter/CSExec