Darshak is an application serving two primary usage -
It has following key features supporting GSM and 3G cellular networks -
For detail information, read our recent Blackhat USA 2014 slides
1) Samsung Galaxy S3 (GT I9300)
Android 4.1.2 (If you running other version, please install stock firmware from Samsung).
However we would recommend to install this stock version - https://owncloud.sec.t-labs.tu-berlin.de/owncloud/public.php?service=files&t=883795a7de19d3e9bf20edd6e8f5988c.
Easiest way to flash stock version is to use Odin tool (https://owncloud.sec.t-labs.tu-berlin.de/owncloud/public.php?service=files&t=080c003b906788e1d3691d3c9128b103).
the Samsung S3 needs to be rooted to run this application. Use Framroot or you can flash device with CF-Auto-Root (https://owncloud.sec.t-labs.tu-berlin.de/owncloud/public.php?service=files&t=714f3a8030c92f5ab6aa5a4178372360) using Odin. It will install SuperSu binary too.
download [the apk from here] (https://github.com/darshakframework/darshak/blob/master/apk/Darshak.apk ). Or from Playstore (https://play.google.com/store/apps/details?id=com.darshak)
install SuperSU and give access permission to the Darshak Application.
Open the application and you are ready to monitor :).
Currently Darshak stores essential data about GSM and 3G networks in the local database file. Soon upload functionality will be available to upload database file from the app to central repository.
To help us improve and add features and build IMSI catcher detector profile, we request you to export database files manualy from the device and mail to darshak@sec.t-labs.tu-berlin.de. Off course, we make this data avaialbe online for further research in mobile networks. Disclaimer: This file does not contain your private information such as IMSI, phone number, incoming/outgoing call numbers etc.
Andreas Schildbach for his essential code part.
Tobias Engel for his awesome https://github.com/2b-as/xgoldmon
Please report bugs at darshak@sec.t-labs.tu-berlin.de, thank you. The code is released under GPL V3. The code is dirty ;) and under development. Feel free to contribute/fork and any suggestions are most welcome.