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Win32.HLLW.Autoruner.21476

Added to the Dr.Web virus database: 2012-09-15

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{F74CC2A7-FDD4-7E08-B7AC-95AD5BD5E08A}] 'stubpath' = ''
Malicious functions:
Executes the following:
  • %WINDIR%\explorer.exe
Injects code into
the following system processes:
  • %WINDIR%\explorer.exe
Modifies file system :
Creates the following files:
  • <SYSTEM32>\msn\msn.exe
  • %APPDATA%\addon.dat
Sets the 'hidden' attribute to the following files:
  • %APPDATA%\addon.dat
  • <SYSTEM32>\msn\msn.exe
Network activity:
Connects to:
  • 'ca#####1979.no-ip.biz':81
UDP:
  • DNS ASK ca#####1979.no-ip.biz