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Win32.HLLW.Autoruner.50967

Added to the Dr.Web virus database: 2011-06-02

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'windows taskbar' = '<SYSTEM32>\Chouf-This.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\Images\loool.jpg
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\desktop.ini
Malicious functions:
Creates and executes the following:
  • %TEMP%\ir_ext_temp_0\autorun.exe "SFXSOURCE:<Full path to virus>"
Modifies file system :
Creates the following files:
  • C:\autorun.inf
  • C:\desktop.ini
  • %TEMP%\ir_ext_temp_0\shimgvw.ico
  • C:\Images
  • %HOMEPATH%\Desktop\loool.jpg
  • %WINDIR%\Web\Wallpaper\loool.jpg
  • %WINDIR%\loool.jpg
  • %TEMP%\ir_ext_temp_0\autorun.exe
  • %TEMP%\ir_ext_temp_0\AutoPlay\autorun.cdd
  • %TEMP%\ir_ext_temp_0\AutoPlay\Audio\High1.ogg
  • %TEMP%\ir_ext_temp_0\AutoPlay\Audio\Click1.ogg
  • %TEMP%\ir_ext_temp_0\AutoPlay\Docs\desktop.ini
  • %TEMP%\ir_ext_temp_0\AutoPlay\Icons\shimgvw.ico
  • %TEMP%\ir_ext_temp_0\AutoPlay\Docs\wprefresh.exe
  • %TEMP%\ir_ext_temp_0\AutoPlay\Docs\loool.jpg
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\desktop.ini
  • <Drive name for removable media>:\autorun.inf
  • C:\desktop.ini
  • C:\autorun.inf
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''