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: ''
