Suspicious Remote Access Utility - TacticalRMM Agent Registration to Potentially Attacker-Controlled Server (via process_creation)

title: Suspicious Remote Access Utility - TacticalRMM Agent Registration to Potentially Attacker-Controlled Server (via process_creation)
id: 365673a8-5db1-5b49-be63-1ab9c89d11b6
status: stable
description: This rule detects TacticalRMM agent installations where the --api, --auth, and related flags are used on the command line. These parameters configure the agent to connect to a specific RMM server with authentication, client ID, and site ID. This method could indicate a threat actor attempting to register the agent with an attacker-controlled RMM infrastructure silently.
references:
    - https://attack.mitre.org/techniques/T1105/
    - https://attack.mitre.org/techniques/T1219/
    - https://github.com/amidaware/tacticalrmm
    - https://apophis133.medium.com/powershell-script-tactical-rmm-installation-45afb639eff3
author: Huntrule Team
date: 2026-04-29
tags:
    - attack.command-and-control
    - attack.t1219
    - attack.t1105
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|contains: '\TacticalAgent\tacticalrmm.exe'
        CommandLine|contains|all:
            - '--api'
            - '--auth'
            - '--client-id'
            - '--site-id'
            - '--agent-type'
    condition: selection
falsepositives:
    - Unknown
level: medium