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Detection rules › Sigma

Remote Access Tool - AnyDesk Silent Installation

Status
test
Severity
high
Log source
category process_creation, product windows
Author
Ján Trenčanský
Source
github.com/SigmaHQ/sigma

Detects AnyDesk Remote Desktop silent installation. Which can be used by attackers to gain remote access.

Known false positives

  • Legitimate deployment of AnyDesk

MITRE ATT&CK coverage

TacticTechniques
Command & Control

Telemetry coverage

ProviderRecord / event type
SysmonEvent ID 1: Process creation
Security-AuditingEvent ID 4688: A new process has been created.

Rule body

title: Remote Access Tool - AnyDesk Silent Installation
id: 114e7f1c-f137-48c8-8f54-3088c24ce4b9
status: test
description: Detects AnyDesk Remote Desktop silent installation. Which can be used by attackers to gain remote access.
references:
    - https://twitter.com/TheDFIRReport/status/1423361119926816776?s=20
    - https://support.anydesk.com/Automatic_Deployment
author: Ján Trenčanský
date: 2021-08-06
modified: 2023-03-05
tags:
    - attack.command-and-control
    - attack.t1219.002
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - '--install'
            - '--start-with-win'
            - '--silent'
    condition: selection
falsepositives:
    - Legitimate deployment of AnyDesk
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    CommandLine|contains|all:
        - '--install'
        - '--start-with-win'
        - '--silent'

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
CommandLinematch
  • --install corpus 3 (sigma 3)
  • --silent
  • --start-with-win
field:"CommandLine" kind:match