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Win32.HLLW.Autoruner1.472

Added to the Dr.Web virus database: 2011-10-27

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'WinC' = '%TEMP%\a~UaUv^3.exe'
Creates or modifies the following files:
  • %ALLUSERSPROFILE%\Start Menu\Programs\Startup .exe
Creates the following files on removable media:
  • <Drive name for removable media>:\ESPFOLDER.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\AuthorizedApplications\List] '%TEMP%\a~UaUv^3.exe' = '%TEMP%\a~UaUv^3.exe:*:Enabled:Windows Live 2010'
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
  • file extensions
Creates and executes the following:
  • %TEMP%\a~UaUv^3.exe =p
Modifies file system :
Creates the following files:
  • %PROGRAM_FILES%\MSN Gaming Zone .exe
  • %PROGRAM_FILES%\MSXML 6.0 .exe
  • %PROGRAM_FILES%\MSN .exe
  • %PROGRAM_FILES%\Movie Maker .exe
  • %PROGRAM_FILES%\MSBuild .exe
  • %PROGRAM_FILES%\NetMeeting .exe
  • %PROGRAM_FILES%\Uninstall Information .exe
  • %PROGRAM_FILES%\Windows Media Player .exe
  • %PROGRAM_FILES%\Reference Assemblies .exe
  • %PROGRAM_FILES%\Online Services .exe
  • %PROGRAM_FILES%\Outlook Express .exe
  • %ALLUSERSPROFILE%\Start Menu\Programs\Games .exe
  • %CommonProgramFiles% .exe
  • %ALLUSERSPROFILE%\Start Menu\Programs\Administrative Tools .exe
  • %TEMP%\a~UaUv^3.exe
  • %ALLUSERSPROFILE%\Start Menu\Programs\Accessories .exe
  • %PROGRAM_FILES%\ComPlus Applications .exe
  • %PROGRAM_FILES%\microsoft frontpage .exe
  • %PROGRAM_FILES%\Microsoft.NET .exe
  • %PROGRAM_FILES%\Messenger .exe
  • %PROGRAM_FILES%\FireFox .exe
  • %PROGRAM_FILES%\Internet Explorer .exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\ESPFOLDER.exe
  • <Drive name for removable media>:\autorun.inf
  • %TEMP%\a~UaUv^3.exe
Network activity:
Connects to:
  • 'us#####s.multimania.es':80
TCP:
HTTP GET requests:
  • us#####s.multimania.es/v77/MYC/CT/sv.php?s=#############################
UDP:
  • DNS ASK us#####s.multimania.es
  • '<Private IP address>':1033