AIMSICD is an app to detect IMSI-Catchers. IMSI-Catchers are false mobile towers (base stations) acting between the target mobile phone(s) and the real towers of service providers. As such they are considered a Man-In-The-Middle (MITM) attack. In the USA the IMSI-Catcher technology is known under the name “StingRay“. Find out more in their WIKI.
What it does
AIMSICD attempts to detect IMSI-Catchers through detection methods such as these:
- Check Tower Information Consistency
- Check LAC/Cell ID Consistency
- Check Neighbouring Cell Info
- Prevent silent app installations
- Monitor Signal Strength
- Detect silent SMS
- Detect FemtoCells
Why use it
The FBI or local police regularly deploys IMSI-Catchers hidden in vehicles at protests to obtain a record of everyone who attended with a cell phone (leave your phones at home by all means if you really have to attend). IMSI-Catchers also allow adversaries to intercept your conversations, text messages, and data. Police can use them to determine your location or to find out who is in a given geographic area at what time. Identity thieves can use freely available tools to monitor and manipulate communications from a parked car in your residential neighborhood; notably for stealing passwords or credit card data from people nearby who make purchases on their phones.
The reason IMSI-Catchers are so commonly used is that it is very easy to get away with using them traceless. This app aims to make it possible to detect the IMSI-Catchers so that using them becomes a risky proposition. It also aims to make users safer by alerting on possible interception and tracking.
Does it work?
Unless you’ve just crawled out from under a rock you’ll have noticed that the media is awash with reports on the incredibly widespread use of IMSI Catcher by Governments, law enforcement agencies, and rogue players. Of course not everyone’s budget can stretch far enough afford the professional baseband-firewall that comes part of the Cryptophone 500i, but for the rest of us mere mortals the Android IMSI-Catcher Detector app provided by AIMSICD can get on your way to finding IMSI Catchers and Stingray’s TODAY!