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Remote Access Tool - AnyDesk Incoming Connection — Sigma Rule

Sigma rule d58ba5c6-0ed7-4b9d-a433-6878379efda9. Remote Access Tool - AnyDesk Incoming Connection — Sigma Rule. Detects incoming connections to AnyDesk. This could indicate a potential remote attacker trying to connect to a listening instance of AnyDesk and use it as potential command and control channel.

Rule metadata and linked tags

experimentalmediumnetwork_connectionwindowsattack.persistenceattack.command-and-controlattack.t1219.002

Author: @d4ns4n_ (Wuerth-Phoenix). Source status: experimental; severity: medium. Source dates: 2024-09-02 / 2025-02-24.

{
  "category": "network_connection",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 241b4a8d5e854224835d41542f1b40971f0474754b61f8fb3285079383d0e1fe

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Remote Access Tool - AnyDesk Incoming Connection
id: d58ba5c6-0ed7-4b9d-a433-6878379efda9
status: experimental
description: |
    Detects incoming connections to AnyDesk. This could indicate a potential remote attacker trying to connect to a listening instance of AnyDesk and use it as potential command and control channel.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1219/T1219.md#atomic-test-2---anydesk-files-detected-test-on-windows
    - https://asec.ahnlab.com/en/40263/
author: '@d4ns4n_ (Wuerth-Phoenix)'
date: 2024-09-02
modified: 2025-02-24
tags:
    - attack.persistence
    - attack.command-and-control
    - attack.t1219.002
logsource:
    category: network_connection
    product: windows
detection:
    selection:
        Image|endswith:
            - '\AnyDesk.exe'
            - '\AnyDeskMSI.exe'
        Initiated: 'false' # If the network connection is initiated remotely (incoming), the field is set to false.
    condition: selection
falsepositives:
    - Legitimate incoming connections (e.g. sysadmin activity). Most of the time I would expect outgoing connections (initiated locally).
level: medium

Original YAML and metadata in JSON

False positives

  • Legitimate incoming connections (e.g. sysadmin activity). Most of the time I would expect outgoing connections (initiated locally).

Source references

Connected ecosystem references

Exact source-tagged techniques

Telemetry review

Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.

Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.