Elastic Security Detection Rules

PowerShell Suspicious Script with Audio Capture Capabilities

Last updated 5 months ago on 2025-03-20
Created 4 years ago on 2021-10-19

About

Detects PowerShell scripts that can record audio, a common feature in popular post-exploitation tooling.
Tags
Domain: EndpointOS: WindowsUse Case: Threat DetectionTactic: CollectionData Source: PowerShell LogsLanguage: kuery
Severity
medium
Risk Score
47
MITRE ATT&CK™

Collection (TA0009)(opens in a new tab or window)

↳ Audio Capture (T1123)(opens in a new tab or window)

Execution (TA0002)(opens in a new tab or window)

↳ Command and Scripting Interpreter (T1059)(opens in a new tab or window)

↳ Native API (T1106)(opens in a new tab or window)

License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Query (Kibana Query Language)
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
winlogbeat-*logs-windows.powershell*
Related Integrations

windows(opens in a new tab or window)

Query
event.category:process and host.os.type:windows and
  powershell.file.script_block_text : (
    "Get-MicrophoneAudio" or
    "WindowsAudioDevice-Powershell-Cmdlet" or
    (waveInGetNumDevs and mciSendStringA)
  )
  and not powershell.file.script_block_text : (
    "sentinelbreakpoints" and "Set-PSBreakpoint" and "PowerSploitIndicators"
  )
  and not user.id : "S-1-5-18"

Install detection rules in Elastic Security

Detect PowerShell Suspicious Script with Audio Capture Capabilities in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).