Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'HKLM' = '%WINDIR%\InstallDir\Server.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKCU' = '%WINDIR%\InstallDir\Server.exe'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}] 'StubPath' = '%WINDIR%\InstallDir\Server.exe restart'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}] 'StubPath' = '%WINDIR%\InstallDir\Server.exe'
Creates or modifies the following files:
- %WINDIR%\system.ini
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\amsint32] 'ImagePath' = '<DRIVERS>\iiipi.sys'
Infects the following executable files:
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\iprrqa.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to file>' = '<Full path to file>:*:Enabled:ipsec'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%WINDIR%\Explorer.EXE' = '%WINDIR%\Explorer.EXE:*:Enabled:ipsec'
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 Security Center
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
a large number of user processes.
Modifies file system:
Creates the following files:
- %WINDIR%\InstallDir\Server.exe
- <DRIVERS>\iiipi.sys
- %TEMP%\winxugilh.exe
- <Full path to file>
- %TEMP%\tmurt.exe
- C:\autorun.inf
- C:\inewy.pif
Sets the 'hidden' attribute to the following files:
- C:\autorun.inf
- C:\inewy.pif
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\iprrqa.exe
Deletes the following files:
- <DRIVERS>\iiipi.sys
- %TEMP%\winxugilh.exe
- %TEMP%\tmurt.exe
Network activity:
Connects to:
- 'localhost':1039
- 'localhost':81
Miscellaneous:
Creates and executes the following:
- '<Full path to file>'
Executes the following:
- '<SYSTEM32>\svchost.exe'
- '%ProgramFiles%\Internet Explorer\IEXPLORE.EXE'
