Possible TeamViewer Domain Query By Non-TeamViewer Application (via dns_query)

title: Possible TeamViewer Domain Query By Non-TeamViewer Application (via dns_query)
id: 2c2ff2e7-ada5-5792-8b33-6f9eb9da420e
status: stable
description: This rule detects DNS queries to a TeamViewer domain only resolved by a TeamViewer client by an image that isn't named TeamViewer (sometimes used by threat actors for obfuscation)
references:
    - https://attack.mitre.org/techniques/T1219/002/
    - https://www.teamviewer.com/en-us/
author: Huntrule Team
date: 2026-04-02
tags:
    - attack.command-and-control
    - attack.t1219.002
logsource:
    product: windows
    category: dns_query
detection:
    selection:
        QueryName:
            - 'taf.teamviewer.com'
            - 'udp.ping.teamviewer.com'
    filter_main_teamviewer:
        Image|contains: 'TeamViewer'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - Unknown
level: medium