Mesh Agent Service Installation — Sigma Rule

Rule metadata and linked tags

Author: Nasreddine Bencherchali (Nextron Systems). Source status: test; severity: medium. Source dates: 2022-11-28 / not supplied.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: b0b2b7389737c6359d4b17f5c6e1b4390d011b062700192631e3dfe784861c40

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: Mesh Agent Service Installation
id: e0d1ad53-c7eb-48ec-a87a-72393cc6cedc
status: test
description: Detects a Mesh Agent service installation. Mesh Agent is used to remotely manage computers
references:
    - https://thedfirreport.com/2022/11/28/emotet-strikes-again-lnk-file-leads-to-domain-wide-ransomware/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-11-28
tags:
    - attack.command-and-control
    - attack.t1219.002
logsource:
    product: windows
    service: system
detection:
    selection_root:
        Provider_Name: 'Service Control Manager'
        EventID: 7045
    selection_service:
        - ImagePath|contains: 'MeshAgent.exe'
        - ServiceName|contains: 'Mesh Agent'
    condition: all of selection_*
falsepositives:
    - Legitimate use of the tool
level: medium

Original YAML and metadata in JSON

False positives

• Legitimate use of the tool

Source references

• https://thedfirreport.com/2022/11/28/emotet-strikes-again-lnk-file-leads-to-domain-wide-ransomware/