# EFForg/crocodilehunter

Taking one back for Steve Irwin 　 　 (๑•̀ㅂ•́)و

Repository: https://github.com/EFForg/crocodilehunter
Canonical: https://ross.abutalabs.com/products/crocodilehunter
Language: Python
License: GPL-3.0
License Family: copyleft
Topics: raspberry-pi, wigle, bladerf, usrp, imsi-catchers, imsi-catcher, libbladerf, security, lte, 4g
Archived: true
Last push: 2023-02-16T02:11:52+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 2914, "days_push": 1295, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1057, forks 149 (observed 2026-08-28T04:03:24.859595+00:00)

## What it is
Crocodile Hunter is an EFF tool that detects fake 4G/LTE cell towers (IMSI catchers/stingrays) using software-defined radios like LimeSDR, USRP B200, and bladeRF. It listens to broadcast messages from nearby cell stations, infers their locations, and flags unusual activity via a web UI.

## Use cases
- detect IMSI catchers in my area
- find stingray cell site simulators
- monitor for fake LTE base stations
- scan 4G towers for suspicious activity with an SDR
- run cellular surveillance detection on a Raspberry Pi

## When to choose
- you have SDR hardware (LimeSDR, USRP B200, bladeRF) and need to detect cell site simulators
- you want an open-source, research-backed IMSI catcher detector with a web dashboard

## When to avoid
- you need maintained or supported software - the project was archived in December 2022
- you lack SDR hardware or Linux (Ubuntu 20.04+) environment
- you need 5G detection - it only covers 4G/LTE

## Facets
- artifact type: application
- maturity: abandoned
- function: security, monitoring, networking, cli, data-visualization
- domain: security, privacy, networking, hardware
- platform: python, cli, self-hosted
- tags: imsi-catcher, stingray-detection, sdr, lte, raspberry-pi, bladerf, usrp, surveillance-detection, linux

## Member repositories
- EFForg/crocodilehunter (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:24.859595+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:57:54.541284+00:00, confidence not recorded.
  - readme: https://github.com/EFForg/crocodilehunter (fetched 2026-08-28T04:03:24.859595+00:00, sha 803d8379cc16)
- Data as of 2026-08-30T08:39:29.467469+00:00.