Technical Information
To ensure autorun and distribution:
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\VMwareService] 'Start' = '00000002'
Creates the following files on removable media:
- <Drive name for removable media>:\vkrkpc.exe
- <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\AuthorizedApplications\List] '%WINDIR%\system\VMwareService.exe' = '%WINDIR%\system\VMwareService.exe:*:Enabled:Microsoft Enabled'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\ctfmon.exe' = '<SYSTEM32>\ctfmon.exe:*:Enabled:ipsec'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:ipsec'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Creates and executes the following:
- %WINDIR%\system\VMwareService.exe
Executes the following:
- <SYSTEM32>\dumprep.exe 1132 -dm 7 7 %WINDIR%\PCHealth\ErrorRep\UserDumps\svchost.exe.20120627-191752-00.mdmp 16325836412033196
- %WINDIR%\explorer.exe
Injects code into
the following system processes:
- <SYSTEM32>\cscript.exe
a large number of user processes.
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\svchost.exe
Searches for windows to
detect analytical utilities:
- ClassName: 'pediy06' WindowName: ''
- ClassName: 'GBDYLLO' WindowName: ''
- ClassName: 'OLLYDBG' WindowName: ''
detect programs and games:
- ClassName: 'MSNHiddenWindowClass' WindowName: ''
Modifies file system :
Creates the following files:
- C:\autorun.inf
- C:\vcekv.exe
- %TEMP%\winugkd.exe
- %WINDIR%\system\VMwareService.exe
- <DRIVERS>\inlqn.sys
- %TEMP%\wingyijt.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\vkrkpc.exe
- C:\vcekv.exe
- %WINDIR%\system\VMwareService.exe
- C:\autorun.inf
Deletes the following files:
- %TEMP%\winugkd.exe
- %TEMP%\wingyijt.exe
- <DRIVERS>\inlqn.sys
Deletes itself.
Network activity:
Connects to:
- '1.##cbf.in':11830
- '<Private IP address>':139
- '<Private IP address>':445
UDP:
- DNS ASK 1.##cbf.in
Miscellaneous:
Searches for the following windows:
- ClassName: 'Proxy Desktop' WindowName: ''
- ClassName: 'AIM_CSignOnWnd' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
