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Added to the Dr.Web virus database: 2013-04-26

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\services.exe
Creates the following files on removable media:
  • <Drive name for removable media>:\Autorun.inf
  • <Drive name for removable media>:\USBLock.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\Start Menu\Programs\Startup\services.exe' = '%HOMEPATH%\Start Menu\Programs\Startup\services.exe:*:Enabled:Task Manager'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
Creates and executes the following:
  • '%HOMEPATH%\Start Menu\Programs\Startup\services.exe'
Executes the following:
  • '<SYSTEM32>\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%HOMEPATH%\Start Menu\Programs\Startup\services.exe" /t REG_SZ /d "%HOMEPATH%\Start Menu\Programs\Startup\services.exe:*:Enabled:Task Manager" /f
  • '<SYSTEM32>\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
Modifies file system :
Creates the following files:
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\USBLock.exe
  • <Drive name for removable media>:\Autorun.inf
Deletes the following files:
  • %TEMP%\~DFEFD5.tmp
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