Remote Access Tool - Simple Help Execution — Sigma Rule

Rule metadata and linked tags

Author: Nasreddine Bencherchali (Nextron Systems). Source status: test; severity: medium. Source dates: 2024-02-23 / not supplied.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: c87f3061cdc7dd7a9d509c5f777a35164fedfa8ea627827e4ca10722063b4c52

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 - Simple Help Execution
id: 95e60a2b-4705-444b-b7da-ba0ea81a3ee2
status: test
description: |
    An adversary may use legitimate desktop support and remote access software, such as Team Viewer, Go2Assist, LogMein, AmmyyAdmin, etc, to establish an interactive command and control channel to target systems within networks.
    These services are commonly used as legitimate technical support software, and may be allowed by application control within a target environment.
    Remote access tools like VNC, Ammyy, and Teamviewer are used frequently when compared with other legitimate software commonly used by adversaries. (Citation: Symantec Living off the Land)
references:
    - https://www.huntress.com/blog/slashandgrab-screen-connect-post-exploitation-in-the-wild-cve-2024-1709-cve-2024-1708
author: Nasreddine Bencherchali (Nextron Systems)
date: 2024-02-23
tags:
    - attack.command-and-control
    - attack.t1219.002
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|contains:
            - '\JWrapper-Remote Access\'
            - '\JWrapper-Remote Support\'
        Image|endswith: '\SimpleService.exe'
    condition: selection
falsepositives:
    - Legitimate usage of the tool
level: medium

Original YAML and metadata in JSON

False positives

• Legitimate usage of the tool

Source references

• https://www.huntress.com/blog/slashandgrab-screen-connect-post-exploitation-in-the-wild-cve-2024-1709-cve-2024-1708