Threat description




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


Disinfecting using F-Secure Mobile Security
  • Download F-Secure Mobile Anti-Virus from https://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\
  • C:\system\apps\Antivirus\AVserver.exe
  • C:\system\apps\Disinfect\
  • C:\system\apps\Disinfector\
  • C:\system\apps\FCommwarrior\
  • C:\system\apps\KLAntivirus\
  • C:\system\apps\MAV\
  • C:\system\apps\Mobilesecurity\
  • C:\system\apps\MobilesecurityAu\
  • E:\system\apps\ADOBEREADER\
  • E:\system\apps\BLACKLIST\
  • E:\system\apps\cabirfix\
  • E:\system\apps\ETICamcorder\
  • E:\system\apps\FExplorer\
  • E:\system\apps\file\
  • E:\system\apps\FSCaller\
  • E:\system\apps\Logoman\
  • E:\system\apps\Photoalbum\
  • E:\system\apps\PhotoEditor\
  • E:\system\apps\Quicksheet\
  • E:\system\apps\SettingsWizard\
  • E:\system\apps\Smartmovie\
  • E:\system\apps\systemexplorer\
  • E:\system\apps\ultramp3\
  • E:\system\recogs\flocknut.mdl
  • E:\system\recogs\fSkulls.mdl

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

  • Worm.Win32.Mobler.b

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

Detection Type: Symbian

Database: 106

Description Created: 2006-08-28 13:43:33.0

Description Last Modified: 2006-08-30 10:46:18.0

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

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