Rayhunter
Rayhunter is a project for detecting IMSI catchers, also known as cell-site simulators or stingrays. It's designed to run on a cheap mobile hotspot called the Orbic RC400L, but thanks to community efforts can support some other devices as well.
It's also designed to be as easy to install and use as possible, regardless of you level of technical skills. This guide should provide you all you need to acquire a compatible device, install Rayhunter, and start catching IMSI catchers.
To learn more about the aim of the project, and about IMSI catchers in general, please check out our introductory blog post. Otherwise, check out the installation guide to get started.
LEGAL DISCLAIMER: Use this program at your own risk. We believe running this program does not currently violate any laws or regulations in the United States. However, we are not responsible for civil or criminal liability resulting from the use of this software. If you are located outside of the US please consult with an attorney in your country to help you assess the legal risks of running this program.
Good Hunting!