Trojan:SymbOS/Kiazha

Classification

Malware

Trojan

SymbOS

Trojan:SymbOS/Kiazha

Summary

Kiazha is a trojan that operates on Symbian Series 60 2nd Edition devices.

Trojan:SymbOS/Kiazha is a trojan that attempts to ransom money from the user of the device.

It is distributed as a component of Trojan:SymbOS/MultiDropper.A.

Removal

Disinfecting using F-Secure Mobile Security

  • Download F-Secure Mobile Security and activate it
  • Scan the phone and remove any components of the malware
  • Reboot the phone to remove memory resident components

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

Find the latest advice in our Community Knowledge Base.

User Guide

See the user guide for your product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details

The following details describe variant Kiazha.A.

Infection

Trojan:SymbOS/Kiazha.A is a Trojan that is dropped onto compromised devices by Trojan:SymbOS/Multidropper.A.

When the trojan is installed, it creates the following files:

  • %DriveLetter%\system\data\appmab.cfg
  • %DriveLetter%\system\data\appman.exe
  • %DriveLetter%\system\data\zn1314.db
  • %DriveLetter%\system\name\name.dat
  • %DriveLetter%\system\Programs\Netqin.exe
  • %DriveLetter%\system\recogs\appmae.mdl
  • %DriveLetter%\system\recogs\Netqins.mdl
  • %DriveLetter%\system\zn1314\sq.exe

Payload

  • Sends an SMS without user permission to the number 17001002.The message will register a new QQ instant messaging account for the user.
  • Forwards SMS messages to the number defined in a data file (appmab.cgf).Messages contain information (Symbian OS version & IMEI etc.) stored in file (name.dat)
  • Deletes any sent or received SMS messages.
  • Displays the offer to fix the user's phone for a small fee.(Warning your handset is infected. Please prepare 50 juan and then contact QQ number QQ766566889)