SymbOS.Skulls.N - Removal

Risk Level 1: Very Low

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Discovered: October 7, 2005
Updated: February 13, 2007 12:45:19 PM
Type: Trojan Horse
Systems Affected: EPOC


  1. Install a file manager program on the device.

  2. Enable the option to view the files in the system folder.

  3. Delete the following malicious files:

    • C:\System\Apps\AppMngr\AppMngr.aif
    • C:\System\Apps\Browser\Browser.aif
    • C:\System\Apps\BtUi\BtUi.aif
    • C:\System\Apps\Calendar\Calendar.aif
    • C:\System\Apps\Camcorder\Camcorder.aif
    • C:\System\Apps\ClockApp\ClockApp.aif
    • C:\System\Apps\FREAKPhoneBook\FREAKPhoneBook.APP
    • C:\System\Apps\GS\GS.aif
    • C:\System\Apps\Logs\Logs.aif
    • C:\System\Apps\MCE\mce.aif
    • C:\System\Apps\MCE\mce.app
    • C:\System\Apps\PSLN\PSLN.aif
    • C:\System\Apps\PhoneBook\PhoneBook.APP
    • C:\System\Apps\ProfileApp\ProfileApp.aif
    • C:\System\Apps\iLoveU\flo.mdl
    • C:\System\Apps\iLoveU\iLoveU.app
    • C:\System\Apps\nokiafile\nokiafile.app
    • C:\System\install\autoexecdaemon.SIS

  4. Delete the following files:

    • C:\System\Apps\AppMngr\Appmngr.app
    • C:\System\Apps\Browser\Browser.app
    • C:\System\Apps\BtUi\BtUi.app
    • C:\System\Apps\Calendar\Calendar.app
    • C:\System\Apps\Camcorder\Camcorder.app
    • C:\System\Apps\ClockApp\ClockApp.app
    • C:\System\Apps\FREAKPhoneBook\FREAKPhoneBook.R01
    • C:\System\Apps\FREAKPhoneBook\FREAKPhoneBook.R13
    • C:\System\Apps\FREAKPhoneBook\FREAKPhoneBook.aif
    • C:\System\Apps\FREAKPhoneBook\FREAKPhoneBook_CAPTION.R13
    • C:\System\Apps\FREAKPhoneBook\FREAKPhoneBook_CAPTION.r01
    • C:\System\Apps\GS\gs.app
    • C:\System\Apps\Logs\Logs.app
    • C:\System\Apps\MCE\MCE.R01
    • C:\System\Apps\MCE\MCE.R13
    • C:\System\Apps\MCE\MCE_CAPTION.R13
    • C:\System\Apps\MCE\mce_CAPTION.r01
    • C:\System\Apps\Menu\Menu.aif
    • C:\System\Apps\Menu\Menu.app
    • C:\System\Apps\PSLN\PSLN.app
    • C:\System\Apps\PhoneBook\PhoneBook.R01
    • C:\System\Apps\PhoneBook\PhoneBook.R13
    • C:\System\Apps\PhoneBook\PhoneBook.aif
    • C:\System\Apps\PhoneBook\PhoneBook_CAPTION.R13
    • C:\System\Apps\PhoneBook\PhoneBook_CAPTION.r01
    • C:\System\Apps\ProfileApp\profileapp.app
    • C:\System\Apps\iLoveU\iLoveU.aif
    • C:\System\Apps\iLoveU\iLoveU.rsc
    • C:\System\Apps\iLoveU\iLoveU_CAPTION.rsC
    • C:\System\Apps\nokiaapps\nokiaapps.app
    • C:\System\Apps\nokiaapps\nokiaapps_CAPTION.rsC
    • C:\System\Apps\nokiafile\data.cfg
    • C:\System\Apps\nokiafile\img.mbm
    • C:\System\Apps\nokiafile\nokiafile.aif
    • C:\System\Apps\nokiafile\nokiafile.rsc
    • C:\System\Apps\nokiafile\nokiafile_caption.rsc
    • C:\System\Apps\pjBLUE\pjBLUE.aif
    • C:\System\Apps\pjBLUE\pjBLUE.APP
    • C:\System\Apps\pjBLUE\pjBLUE_CAPTION.rsC

  5. Exit the file manager.


Writeup By: Yana Liu
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