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Profile

Win32.Sector.34

Added to the Dr.Web virus database: 2014-09-11

Virus description added:

Technical Information

To ensure autorun and distribution:
Infects the following executable files:
  • %CommonProgramFiles%\Java\Java Update\jucheck.exe
Creates the following files on removable media:
  • <Drive name for removable media>:\rjoqfy.pif
  • <Drive name for removable media>:\autorun.inf
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
  • [<HKLM>\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
  • [<HKLM>\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
blocks the following features:
  • User Account Control (UAC)
  • Windows Security Center
Executes the following:
  • '<SYSTEM32>\rundll32.exe' <SYSTEM32>\FirewallControlPanel.dll,ShowNotificationDialog /configure /ETOnly 0 /OnProfiles 6 /OtherAllowed 0 /OtherBlocked 0 /OtherEdgeAllowed 0 /NewBlocked 2 "<Full path to virus>"
Injects code into
the following system processes:
  • <SYSTEM32>\rundll32.exe
a large number of user processes.
Modifies file system :
Creates the following files:
  • \Device\HarddiskVolume3\autorun.inf
  • C:\olyfgc.exe
  • \Device\HarddiskVolume3\effeuo.exe
  • \Device\Mup\.host\Shared Folders\vm_shara\akxt.exe
  • \Device\Mup\.host\Shared Folders\vm_shara\autorun.inf
  • %TEMP%\wintggl.exe
  • %TEMP%\winykhsfq.exe
  • C:\autorun.inf
  • %TEMP%\hklqbt.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\rjoqfy.pif
  • <Drive name for removable media>:\autorun.inf
  • \Device\Mup\.host\Shared Folders\vm_shara\akxt.exe
  • \Device\Mup\.host\Shared Folders\vm_shara\autorun.inf
  • C:\olyfgc.exe
  • C:\autorun.inf
  • \Device\HarddiskVolume3\effeuo.exe
  • \Device\HarddiskVolume3\autorun.inf
Deletes the following files:
  • %TEMP%\hklqbt.exe
  • %TEMP%\winykhsfq.exe
  • %TEMP%\wintggl.exe
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''