The Universal Radio Hacker (URH) is an Open Source app for investigating unknown wireless protocols.
With the rise of the Internet of Things (IoT), such protocols often appear in the wild. Many IoT devices operate on frequencies like 433.92 MHz or 868.3 MHz and use proprietary protocols for communication. Reverse-engineering such protocols can be fascinating and reveal serious security leaks, e.g., bypassing smart alarm systems and door locks.
As the name suggests, SDRs need software to be correctly operated. This is where the Universal Radio Hacker comes into play: It takes the samples from the SDR and transforms them into binary information (bits). But this is only the beginning: URH is designed to help you throughout the entire process of attacking the wireless communication of IoT devices.
Universal Radio Hacker Features:
hardware interfaces for common Software Defined Radios
easy demodulation of signals
assigning participants to keep an overview of your data
customizable decodings to crack even sophisticated encodings like CC1101 data whitening
assign labels to reveal the logic of the protocol
fuzzing component to find security leaks
modulation support to inject the data back into the system
simulation environment to perform stateful attacks
Universal Radio Hacker is geared toward advanced users; however, an official user guide is available.