Select local site

| Japanese | Simplified Chinese | Traditional Chinese (Hong Kong) | Traditional Chinese (Taiwan)

F-Secure Malware Information Pages: Trojan:SymbOS/Kiazha

[Summary] | [Disinfection] | [Detailed Description]

Name : Trojan:SymbOS/Kiazha
Alias:Trojan:SymbOS/Kiazha.B, Trojan:SymbOS/Kiazha.A
Type:Trojan
Category:Malware
Platform:SymbOS
Date of Discovery:March 06, 2008
Radar

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.
Back to the Top

Disinfection

Disinfecting using F-Secure Mobile Anti-Virus
  1. Download F-Secure Mobile Anti-Virus from http://f-secure.mobi
    and activate the Anti-Virus
  2. Scan the phone and remove any components of the malware
  3. Reboot the phone to remove memory resident components
Back to the Top

Detailed Description
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)
Back to the Top



F-Secure Corporation

Last Modified: March 11, 2008