Remote Access Tool - Anydesk Execution From Suspicious Folder

Hunt Hypothesis

An adversary may use legitimate desktop support and remote access software, such as Team Viewer, Go2Assist, LogMein, AmmyyAdmin, etc, to establish an interactive command and control channel to target

Detection Rule

Sigma (Original)

title: Remote Access Tool - Anydesk Execution From Suspicious Folder
id: 065b00ca-5d5c-4557-ac95-64a6d0b64d86
related:
    - id: b52e84a3-029e-4529-b09b-71d19dd27e94
      type: similar
status: test
description: |
    An adversary may use legitimate desktop support and remote access software, such as Team Viewer, Go2Assist, LogMein, AmmyyAdmin, etc, to establish an interactive command and control channel to target systems within networks.
    These services are commonly used as legitimate technical support software, and may be allowed by application control within a target environment.
    Remote access tools like VNC, Ammyy, and Teamviewer are used frequently when compared with other legitimate software commonly used by adversaries. (Citation: Symantec Living off the Land)
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1219/T1219.md#atomic-test-2---anydesk-files-detected-test-on-windows
    - https://thedfirreport.com/2025/02/24/confluence-exploit-leads-to-lockbit-ransomware/
author: Florian Roth (Nextron Systems)
date: 2022-05-20
modified: 2025-02-24
tags:
    - attack.command-and-control
    - attack.t1219.002
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith:
              - '\AnyDesk.exe'
              - '\AnyDeskMSI.exe'
        - Description: AnyDesk
        - Product: AnyDesk
        - Company: AnyDesk Software GmbH
    filter:
        Image|contains:
            - '\AppData\'
            - 'Program Files (x86)\AnyDesk'
            - 'Program Files\AnyDesk'
    condition: selection and not filter
falsepositives:
    - Legitimate use of AnyDesk from a non-standard folder
level: high

KQL (Azure Sentinel)

imProcessCreate
| where ((TargetProcessName endswith "\\AnyDesk.exe" or TargetProcessName endswith "\\AnyDeskMSI.exe") or TargetProcessFileDescription =~ "AnyDesk" or TargetProcessFileProduct =~ "AnyDesk" or TargetProcessFileCompany =~ "AnyDesk Software GmbH") and (not((TargetProcessName contains "\\AppData\\" or TargetProcessName contains "Program Files (x86)\\AnyDesk" or TargetProcessName contains "Program Files\\AnyDesk")))

Required Data Sources

False Positive Guidance

• Legitimate use of AnyDesk from a non-standard folder

MITRE ATT&CK Context

• Tactic: Command and Control
• Technique: T1219.002 — T1219.002

References

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1219/T1219.md#atomic-test-2---anydesk-files-detected-test-on-windows
• https://thedfirreport.com/2025/02/24/confluence-exploit-leads-to-lockbit-ransomware/
• SigmaHQ Rule