Sigma rule: Remote Access Tool - Team Viewer Session Started On MacOS Host

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-7e9fbd34acf5, updated 2024-03-11T00:00:00.000Z.

Rule

Title
Remote Access Tool - Team Viewer Session Started On MacOS Host
Status
test
Level
low
Author
Josh Nickels, Qi Nan
Date
2024-03-11
File
rules/macos/process_creation/proc_creation_macos_remote_access_tools_teamviewer_incoming_connection.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

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.

Log source

product
macos
category
process_creation

Detection

selection:
    ParentImage|endswith: '/TeamViewer_Service'
    Image|endswith: '/TeamViewer_Desktop'
    CommandLine|endswith: '/TeamViewer_Desktop --IPCport 5939 --Module 1'
condition: selection

False positives (as the rule lists them)

  • Legitimate usage of TeamViewer

Tags

  • attack.persistence
  • attack.initial-access
  • attack.t1133

MITRE ATT&CK ids this rule names

Related rules

References

  • Internal Research

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/macos/process_creation/proc_creation_macos_remote_access_tools_teamviewer_incoming_connection.yml

Sources and licences

  • SigmaHQ

    "Remote Access Tool - Team Viewer Session Started On MacOS Host" by Josh Nickels, Qi Nan (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/macos/process_creation/proc_creation_macos_remote_access_tools_teamviewer_incoming_connection.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Remote Access Tool - Team Viewer Session Started On MacOS Host",
entity page, dataset version ref-7e9fbd34acf5, updated 2024-03-11T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/f459ccb4-9805-41ea-b5b2-55e279e2424a (accessed 2026-11-03).
Underlying source: SigmaHQ rule f459ccb4-9805-41ea-b5b2-55e279e2424a, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.