Remote Access Tool - ScreenConnect Command Execution — Sigma Rule

Rule metadata and linked tags

Author: Ali Alwashali. Source status: test; severity: low. Source dates: 2023-10-10 / not supplied.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 0b0cf3f8be2a028a5ded4a8e407e65b71765878ca91cd82f72b40c071679151b

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 Access Tool - ScreenConnect Command Execution
id: 076ebe48-cc05-4d8f-9d41-89245cd93a14
related:
    - id: b1f73849-6329-4069-bc8f-78a604bb8b23
      type: similar
status: test
description: Detects command execution via ScreenConnect RMM
references:
    - https://www.huntandhackett.com/blog/revil-the-usage-of-legitimate-remote-admin-tooling
    - https://github.com/SigmaHQ/sigma/pull/4467
author: Ali Alwashali
date: 2023-10-10
tags:
    - attack.execution
    - attack.t1059.003
logsource:
    service: application
    product: windows
detection:
    selection:
        Provider_Name: 'ScreenConnect'
        EventID: 200
        Data|contains: 'Executed command of length'
    condition: selection
falsepositives:
    - Legitimate use of ScreenConnect
level: low

Original YAML and metadata in JSON

False positives

• Legitimate use of ScreenConnect

Source references

• https://www.huntandhackett.com/blog/revil-the-usage-of-legitimate-remote-admin-tooling
• https://github.com/SigmaHQ/sigma/pull/4467