What is it?

Masterkey is a WiFi enabled USB Keylogger and Keystroke injection tool. The wielder simply connects a keyboard to the device then connects the device to a computer. Any keys pressed on the keyboard will be logged to the internal storage of the device. Key presses can be retrieved by connecting to the wireless access point hosted by the device. More usage information can be found on the github repo Masterkey comes with a 3D printed enclosure to make it less conspicuous. While layer lines are still visible with FDM printing regardless of layer height, it is better than nothing and I don't know how to do injection molding. The devices comes fully assembled in its enclosure so first use is as simple as plug and play.

Why did you make it?

This project was originally inspired by spacehuhn. He created the original WiFi USB Keylogger project using an Arduino pro micro/leonardo and an Arduino Host Shield. I felt the project deserved some dedicated hardware. With this device, I was able to combine the capabilities of the WiFi USB Keylogger and the WiFi Duck. A lot of the cheap WiFi USB Keyloggers aren't as hackable or as capable. Similar devices that offer these traits can come with a severe price tag. While this may not be as thorough as a CPLD/FPGA based USB Keylogger, it gets the job done. You can read more about different USB Keyloggers here

What makes it special?

The Masterkey USB Keylogger functions as you would expect any USB Keylogger to function. It will log key presses and present them over a WiFi network, but it has a few more features that make it unique.

• Zero latency with key presses
• Fully configurable WiFi access point
• Execute keystroke injection attacks
• Save keystroke injection scripts to run later
• Import keystroke injection scripts
• Opensource firmware
• Arduino compatible
• Update ESP8266 firmware over-the-air