wkt21/hid-self-destruct-code

This repository contains code for turning an Arduino board into a "BadUSB" device, a gadget that mimics a keyboard and can automatically type commands when plugged into a computer. The project is labeled for educational purposes only. The core idea is that when you plug a regular USB keyboard into a computer, the computer trusts it and accepts whatever it types. A BadUSB device takes advantage of that trust. The included Arduino code makes the board pretend to be a keyboard, type a sequence of keystrokes on its own, and execute commands without the computer owner doing anything. The README notes that this "hands-off" approach only works with actual USB HID hardware like an Arduino or a Rubber Ducky, not with a plain thumb drive. The author explains that if you tried to do something similar with a regular USB stick, you would hit a wall. A thumb drive cannot automatically run code on its own. You would need to put a script on the drive and have someone manually open it, which removes the surprise element that makes the hardware version effective. The Arduino version, by contrast, runs on the device itself, once the code is uploaded to the board, it works as plug-and-play with no further setup needed. Someone teaching a cybersecurity class might use this to demonstrate why computers are vulnerable to rogue USB devices. The README frames this around a scenario involving students, suggesting the project was built for a classroom or training context. It is a demonstration tool for understanding how trusted input devices can be abused. The README is brief and does not go into detail about what specific commands the code types or what the "self-destruct" action actually does. The focus is on explaining the difference between hardware-based HID attacks and software-based approaches, rather than providing a full walkthrough.