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Win32.HLLW.Autoruner1.11221

Added to the Dr.Web virus database: 2012-01-25

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'explorer' = '%WINDIR%\BackUp\explorer.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\explorer.exe
Modifies file system :
Creates the following files:
  • %PROGRAM_FILES%\explorer.exe
  • C:\explorer.exe
  • %WINDIR%\BackUp\explorer.exe
  • %WINDIR%\BackUp\autorun.inf
  • C:\RECYCLER\explorer.exe
  • %PROGRAM_FILES%\{17350501621331}.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\explorer.exe
  • %WINDIR%\BackUp\explorer.exe
  • %WINDIR%\BackUp\autorun.inf
  • <Drive name for removable media>:\autorun.inf
Deletes the following files:
  • %PROGRAM_FILES%\explorer.exe
  • C:\explorer.exe
  • %WINDIR%\BackUp\explorer.exe
  • <Drive name for removable media>:\autorun.inf
  • C:\RECYCLER\explorer.exe
  • %PROGRAM_FILES%\{17350501621331}.exe