Detect attacks of fake base stations such as IMSI-Catcher and StingRay on your GSM/UMTS network. Look for silent SMS used by police and intelligence services.
Free
Open Source
Android
aimsicd is an android app to detect imsicatchers. these devices 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 maninthemiddle (mitm) attack. this surveillance technology is also known as "stingray", "cellular interception" and alike. find out more in our wiki on github.
aimsicd attempts to detect imsicatchers through detection methods such as these:check tower information consistencycheck lac/cell id consistencycheck neighboring cell infoprevent silent app installationsmonitor signal strengthdetect silent smsdetect femtocells
why use it ?the fbi or local police regularly deploys imsicatchers 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). imsicatchers 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 and even build their own rogue gsm bts 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 imsicatchers are so commonly used is that it is very easy to get away with using them since they leave no traces. our app aims to make it possible to detect the imsicatchers so that using them becomes a risky proposition. it also aims to make users safer by alerting on possible interception and tracking. fight for your privacy!
Links to official Android IMSI-Catcher Detector sites
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Commercial
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