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Suspicious Troubleshooting Pack Cabinet Execution

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Suspicious Troubleshooting Pack Cabinet Execution

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Identifies the execution of the Microsoft Diagnostic Wizard to open a diagcab file from a suspicious path and with an unusual parent process. This may indicate an attempt to execute malicious Troubleshooting Pack Cabinet files.

Rule type: eql

Rule indices:

  • logs-endpoint.events.process-*
  • logs-system.security*
  • winlogbeat-*
  • logs-windows.*
  • endgame-*

Severity: low

Risk score: 21

Runs every: 60m

Searches indices from: now-119m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Domain: Endpoint
  • OS: Windows
  • Use Case: Threat Detection
  • Tactic: Defense Evasion
  • Rule Type: BBR
  • Data Source: Elastic Defend
  • Data Source: Elastic Endgame
  • Data Source: System

Version: 104

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule query

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process where host.os.type == "windows" and event.action == "start" and
  (process.name : "msdt.exe" or ?process.pe.original_file_name == "msdt.exe") and process.args : "/cab" and
  process.parent.name : (
    "firefox.exe", "chrome.exe", "msedge.exe", "explorer.exe", "brave.exe", "whale.exe", "browser.exe",
    "dragon.exe", "vivaldi.exe", "opera.exe", "iexplore", "firefox.exe", "waterfox.exe", "iexplore.exe",
    "winrar.exe", "winrar.exe", "7zFM.exe", "outlook.exe", "winword.exe", "excel.exe"
  ) and
  process.args : (
    "?:\\Users\\*",
    "\\\\*",
    "http*",
    "ftp://*"
  )

Framework: MITRE ATT&CKTM

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