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Win32.HLLW.Autoruner1.5204

Added to the Dr.Web virus database: 2011-12-05

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Magicfile' = '%APPDATA%\Cybtest.exe'
Malicious functions
Injects code into
the following system processes:
  • %WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe
Modifies file system
Creates the following files
  • %APPDATA%\cybtest.exe
  • %WINDIR%\syswow64\windir\svchost.exe
  • %TEMP%\user2.txt
  • %TEMP%\user7
  • %TEMP%\user8
Deletes the following files
  • %TEMP%\user2.txt
  • %TEMP%\user8
  • %TEMP%\user7
Substitutes the following files
  • %TEMP%\user8
  • %TEMP%\user7
Network activity
UDP
  • DNS ASK ji#.#apto.org
Miscellaneous
Creates and executes the following
  • '%WINDIR%\syswow64\windir\svchost.exe'
Executes the following
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe'
  • '%ProgramFiles(x86)%\internet explorer\iexplore.exe'

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