STM32-BAD-USB is a DIY USB rubber ducky implementation using an STM32 microcontroller.This project was developed as part of our microcontroller course during the Winter-Fall semester of 2023 at Isfahan University of Technology. It was created and developed by Yasin and me:).

The project aims to replicate the functionality of a USB rubber ducky using an STM32 microcontroller. By emulating a keyboard, this device can automate keystrokes for security testing and penetration testing purposes.

The chip presents itself as a keyboard upon connection via the USB port, executing a rapid sequence that includes launching PowerShell, installing, and running a PowerShell reverse shell, all accomplished in 4 seconds.

• stm32F103C8 (We used the Blue Pill board)