Remote Access Utility - RURAT Execution From Unusual Location (via process_creation)

title: Remote Access Utility - RURAT Execution From Unusual Location (via process_creation)
id: a7644a3a-8b91-52fe-9792-ffe1f4b3dfe6
status: stable
description: This rule detects execution of Remote Utilities RAT (RURAT) from an unusual location (outside of 'C:\Program Files')
references:
    - https://redcanary.com/blog/misbehaving-rats/
author: Huntrule Team
date: 2026-05-28
tags:
    - attack.stealth
    - attack.command-and-control
    - attack.t1219
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith:
              - '\rutserv.exe'
              - '\rfusclient.exe'
        - Product: 'Remote Utilities'
    filter:
        Image|startswith:
            - 'C:\Program Files\Remote Utilities'
            - 'C:\Program Files (x86)\Remote Utilities'
    condition: selection and not filter
falsepositives:
    - Unknown
level: medium