Threat Descriptions

Trojan:Android/Fakeinst.HB

Classification

Category :

Malware

Type :

Trojan

Platform :

Android

Aliases :

Fakeinst.HB

Summary

Trojan:Android/Fakeinst.HB is a repackaged clone of a popular, free racing game. Unlike the original, the repackaged clone requires the user to pay a charge, supposedly to "access higher game levels".

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

The original game is a highly popular car racing game available, completely free, on the Google Play Store. Trojan:Android/Fakeinst.HB however includes a routine that demands payment to continue to play the game.

During game play, the trojan displays an alert message every ten minutes informing the user that they must pay, supposedly to gain access to the higher game levels. A varying scale of payments is listed (in Vietnamese dong).

The user is instructed to make payment either by scratch cards or by SMS. If the user opts to send an SMS, the app will send an SMS message to a given number.

If the user refuses to pay and ignores the repeated messages, after a period of time they are sent to the repackager's website, where they are shown more (originally free) games.