PowerShell Script with Webcam Video Capture Capabilitiesedit

Detects PowerShell scripts that can be used to record webcam video. Attackers can capture this information to extort or spy on victims.

Rule type: query

Rule indices:

  • winlogbeat-*
  • logs-windows.*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100



  • Domain: Endpoint
  • OS: Windows
  • Use Case: Threat Detection
  • Tactic: Collection
  • Data Source: PowerShell Logs

Version: 3

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule queryedit

event.category:process and host.os.type:windows and
  powershell.file.script_block_text : (
    "NewFrameEventHandler" or
    "VideoCaptureDevice" or
    "DirectX.Capture.Filters" or
    "VideoCompressors" or
    "Start-WebcamRecorder" or
      ("capCreateCaptureWindowA" or
       "capCreateCaptureWindow" or
       "capGetDriverDescription") and
      ("avicap32.dll" or "avicap32")