Rayhunter is a new open source tool from the EFF to detect cellular spying.
You install Rayhunter on a LTE pocket router to detect suspicious activity from IMSI catchers (aka. Stingray) in your vicinity.
In this session we want to install Rayhunter, talk about what it does and why it is useful, what possible use cases are and how future development might look like.
Everyone is welcome, no special knowledge or skills are needed.
If you can please bring along the following items
- your laptop (Linux, MacOS, Windows)
- a (fully charged) TP-Link M7350 portable LTE router (some other models are also supported by Rayhunter, but this is the one I tested)
- a Micro-SD card (32 GB is ok)
- a SIM card (e.g. a prepaid SIM from your local supermarket - you may want to activate it but it is not strictly needed, nano-SIM form factor needed)
- a USB-C cable that can connect to your laptop
- installer files for your OS version
You can find the TP-Link M7350 used on eBay or new on Amazon for ~45 EUR https://amzn.eu/d/6YUbV1b https://www.tp-link.com/de/home-networking/mifi/m7350/
For background information: https://www.eff.org/deeplinks/2025/03/meet-rayhunter-new-open-source-tool-eff-detect-cellular-spying
GitHub repository and release files: https://github.com/EFForg/rayhunter
Please note that this is not an "official" EFF event.