Possible Remote Access Utility - Team Viewer Session Started On MacOS Host (via process_creation)
This rule detects the command line executed when TeamViewer starts a session started by a remote host. Once a connection has been started, an investigator can verify the connection details by viewing the "incoming_connections.txt" log file in the TeamViewer folder.
SigmalowmacOSv1
sigma
possible-remote-access-utility-team-viewer-session-started-on-macos-host-via-process-creation
title: Possible Remote Access Utility - Team Viewer Session Started On MacOS Host (via process_creation)
id: 84d726b3-f7b6-5170-bbae-72df9049be2c
status: stable
description: This rule detects the command line executed when TeamViewer starts a session started by a remote host. Once a connection has been started, an investigator can verify the connection details by viewing the "incoming_connections.txt" log file in the TeamViewer folder.
references:
- https://attack.mitre.org/techniques/T1133/
- Internal Research
author: Huntrule Team
date: 2026-07-22
tags:
- attack.persistence
- attack.initial-access
- attack.t1133
logsource:
category: process_creation
product: macos
detection:
selection:
ParentImage|endswith: '/TeamViewer_Service'
Image|endswith: '/TeamViewer_Desktop'
CommandLine|endswith: '/TeamViewer_Desktop --IPCport 5939 --Module 1'
condition: selection
falsepositives:
- Unknown
level: low
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.