Threat Description

Cardtrap.AK

Details

Category: Trojan
Type: Trojan
Platform: SymbOS

Summary



Cardtrap.AK is a Symbian SIS file trojan that tries to damage some 3rd party applications and installs Windows malware to the memory card.



Removal



Disinfecting using F-Secure Mobile Anti-Virus

  • Download F-Secure Mobile Anti-Virus from http://f-secure.mobiand activate the Anti-Virus
  • Scan the phone and remove any components of the malware
  • Reboot the phone to remove memory resident components


Technical Details



Installation to the Phone

Cardtrap.AK tries to disable following 3rd party applications by installing several damaged files to the phone memory:

  • C:\system\apps\Antivirus\Antivirus.app
  • C:\system\apps\Antivirus\AVserver.exe
  • C:\system\apps\Disinfect\Disinfect.app
  • C:\system\apps\Disinfector\Disinfector.app
  • C:\system\apps\FCommwarrior\FCommwarrior.app
  • C:\system\apps\KLAntivirus\KLAntivirus.app
  • C:\system\apps\MAV\MAV.app
  • C:\system\apps\Mobilesecurity\Mobilesecurity.app
  • C:\system\apps\MobilesecurityAu\MobilesecurityAu.app
  • E:\system\apps\ADOBEREADER\ADOBEREADER.app
  • E:\system\apps\BLACKLIST\BLACKLIST.app
  • E:\system\apps\cabirfix\cabirfix.app
  • E:\system\apps\ETICamcorder\ETICamcorder.app
  • E:\system\apps\FExplorer\FExplorer.app
  • E:\system\apps\file\file.app
  • E:\system\apps\FSCaller\FSCaller.app
  • E:\system\apps\Logoman\Logoman.app
  • E:\system\apps\Photoalbum\Photoalbum.app
  • E:\system\apps\PhotoEditor\PhotoEditor.app
  • E:\system\apps\Quicksheet\Quicksheet.app
  • E:\system\apps\SettingsWizard\SettingsWizard.app
  • E:\system\apps\Smartmovie\Smartmovie.app
  • E:\system\apps\systemexplorer\systemexplorer.app
  • E:\system\apps\ultramp3\ultramp3.app
  • E:\system\recogs\flocknut.mdl
  • E:\system\recogs\fSkulls.mdl

Cardtrap.AK drops following Win32 malware to device memory card:

  • Worm.Win32.Mobler.b


Detection


F-Secure Mobile Anti-Virus for Symbian detects this malware starting from the update build number 106.
Detection Type: Symbian
Database: 106



Description Created: Mika Tolvanen, August 28, 2006
Technical Details: Mika Tolvanen, August 28, 2006


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