Trojan:Android/Tetus.A
Summary
Trojan:Android/Tetus monitors incoming SMS messages and forwards the message contents to a remote server.
Removal
Once the scan is complete, the F-Secure security product will ask if you want to uninstall the file, move it to the quarantine or keep it installed on your device.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
- Check for the latest database updates
First check if your F-Secure security program is using the latest updates, then try scanning the file again.
- Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
- Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
Technical Details
Tetus.A is an information stealing trojan disguised as an entertainment or social networking application, or a helper tool. It is distributed via a third-party Android app market, and may use the following package file names:
- com.appsmediaworld.fitpal
- com.appengines.fastphone
- com.mobilityplus.friendly
- com.coolmasterz.flirt
- com.droidmojo.celebstalker
- com.droidmojo.awesomejokes
- com.stephbrigg5.batteryimprove
- com.supersocialmob.allfriends
- com.nogginfunsite.zgames
Tetus.A spies on incoming SMS messages. Once an event handler is successfully set, it will notify one of these command and control (C&C) servers:
- http://[...]/android/[...]/tetulus.com
- http://[...]/android-gaming-zone/[...]/.com
Whenever a new SMS message arrives, Tetus.A will turn the content into one long string (replacing spaces with ‘_’) and forward it to the C&C server. The server recognizes different infected devices by the International Mobile Equipment Identity (IMEI) number.
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