Trojan:SymbOS/Bootton.E

Classification

Malware

Trojan

SymbOS

Bootton.E

Summary

Bootton.E is a SIS file that installs small software component that resets the device if executed. This component is installed as reset application. Bootton.E installs also corrupted system components that cause reboot to fail. Thus leaving phone in unusable state.

Removal

F-Secure Mobile Anti-Virus is capable to detecting and deleting the Bootton.E trojan. It can be also removed by uninstalling it with Symbian application manager.

Disinfection for the cases when phone is already rebooted and cannot start up

CAUTION This method will remove all data on the device, including calendar and phone numbers

  • Power off the phone
  • Hold following three buttons down "answer call" + "*" + "3"
  • Keep holding the buttons and power on the phone
  • Depending on the model, you either get text "formatting" or start-up dialog that asks for initial phone settings
  • Your phone is now formatted and can be used again

Suspect a file is incorrectly detected (a False Positive)?

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 detection database 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.

Find out more

Knowledge Base

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User Guide

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Submit a sample

Submit a file or URL for further analysis.

Technical Details

In its structure Bootton.E is quite similar to SymbOS/Bootton.C. With the exception that instead of replacing system files with corrupted binaries the Bootton.E uses application that causes device to reboot.

In the device that is infected with Bootton.E, executing reboot application reboots device immediately. Installed corrupted system components cause reboot to fail. Thus leaving phone in unusable state after reboot.