Detectionlowtest

Remote Access Tool - Team Viewer Session Started On MacOS Host

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.

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

Launch
Josh Nickels, Qi NanCreated Mon Mar 11f459ccb4-9805-41ea-b5b2-55e279e2424amacos
Log Source
macOSProcess Creation
ProductmacOS← raw: macos
CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic
Detection Logic1 selector
detection:
    selection:
        ParentImage|endswith: '/TeamViewer_Service'
        Image|endswith: '/TeamViewer_Desktop'
        CommandLine|endswith: '/TeamViewer_Desktop --IPCport 5939 --Module 1'
    condition: selection
False Positives

Legitimate usage of TeamViewer

References
1
Resolving title…
Internal Research