https://github.com/NtQuerySystemInformation/CustomKeyboardLayoutPersistence

Achieve execution using a custom keyboard layout
https://github.com/NtQuerySystemInformation/CustomKeyboardLayoutPersistence

Last synced: 3 months ago
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Achieve execution using a custom keyboard layout

• Host: GitHub
• URL: https://github.com/NtQuerySystemInformation/CustomKeyboardLayoutPersistence
• Owner: NtQuerySystemInformation
• Created: 2022-03-13T17:43:29.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2023-05-23T20:34:26.000Z (over 1 year ago)
• Last Synced: 2024-05-08T01:31:57.761Z (6 months ago)
• Language: C++
• Size: 947 KB
• Stars: 158
• Watchers: 5
• Forks: 30
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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• awesome-hacking-lists - NtQuerySystemInformation/CustomKeyboardLayoutPersistence - Achieve execution using a custom keyboard layout (C++)

README

        
# Keyboard Layout Persistence PoC:

![imagen](https://user-images.githubusercontent.com/87275762/158073012-e3de0a6a-7b33-4e23-8c42-87148a2a71b9.png)

	

	Achieve execution using a custom keyboard layout, tested in Windows 11 Home version 21H2 

# How to use:

The dropper requires VS2022 for compilation and the keyboard driver VS2019 because of WDK (until VS2022 supports this.)

	If you want to compile your own keyboard driver:

		1.-Compile the keyboard driver and the dropper (KeyboardLayoutPersistence) as Release x64.

		2.-Replace the keyboard driver dll inside KeyboardLayoutPersistence folder. 

		3.-Execute the dropper and then reboot. 

	

	If you just want to compile and test (precompiled dll)

		1.-Compile the dropper as Release x64 (KeyboardLayoutPersistence).

		2.-Execute and then reboot.

    

   Once the infected user logs in, you should see a cmd.exe process that is NTAUTHORITY/SYSTEM.

   

# Warnings and Errata:

  It is recommended to run the binary in a VM, since there is no code related to the desinstallation process in the PoC.

  For more details, refer to the paper.

  

  (2023 Update: Hey it's kasua, it's been a while since I have looked at my past work, but this one definetely has some terminology errors.

  The paper mentions KLID as "a 8-digit number (DWORD), where the LOWORD is the language ID (or LANGID) and the HIWORD is the sublanguage ID for a specific keyboard layout." 

  This is actually not correct. The bottom half is LANGID and the top half is something device-specific.

  The rest however, stays intact, since the main objective of this project is to show how it is doable to achieve code execution.)

  

# Dependencies:

   Requires Microsoft Visual C++ Redistributable (Visual Studio 2015, 2017, 2019 y 2022)

   (Now the library code is statically linked, so this shouldn't be a problem, unless?.)

Dedicated to all vx-underground members.