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Win32.HLLW.Autoruner.56396

Added to the Dr.Web virus database: 2011-08-15

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'WindowsDefender' = '<SYSTEM32>\WEEDYS~1.EXE'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'WindowsDefender' = '<Full path to virus>'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Modifies file system :
Creates the following files:
  • %WINDIR%\HaHa.4611179.weed
  • C:\WeedySpeedy.4111179.exe
  • %WINDIR%\HaHa.5011179.weed
  • C:\WeedySpeedy.4611179.exe
  • %WINDIR%\HaHa.4111179.weed
  • C:\WeedySpeedy.3311179.exe
  • %WINDIR%\HaHa.3311179.weed
  • C:\WeedySpeedy.3711179.exe
  • %WINDIR%\HaHa.3711179.weed
  • C:\WeedySpeedy.212179.exe
  • %WINDIR%\HaHa.112179.weed
  • C:\WeedySpeedy.612179.exe
  • %WINDIR%\HaHa.512179.weed
  • C:\WeedySpeedy.5811179.exe
  • %WINDIR%\HaHa.5411179.weed
  • C:\WeedySpeedy.5011179.exe
  • %WINDIR%\HaHa.5711179.weed
  • C:\WeedySpeedy.5411179.exe
  • C:\WeedySpeedy.911179.exe
  • <SYSTEM32>\WeedySpeedy.exe
  • %WINDIR%\HaHa.1311179.weed
  • <SYSTEM32>\WeedForAll.exe
  • %WINDIR%\HaHa.811179.weed
  • <Current directory>\autorun.inf
  • <Current directory>\WeedForAll.exe
  • <SYSTEM32>\autorun.inf
  • C:\autorun.inf
  • C:\WeedySpeedy.2711179.exe
  • %WINDIR%\HaHa.2611179.weed
  • C:\WeedySpeedy.3011179.exe
  • %WINDIR%\HaHa.2911179.weed
  • C:\WeedySpeedy.2211179.exe
  • %WINDIR%\HaHa.1711179.weed
  • C:\WeedySpeedy.1311179.exe
  • %WINDIR%\HaHa.2211179.weed
  • C:\WeedySpeedy.1811179.exe
Sets the 'hidden' attribute to the following files:
  • <Current directory>\WeedForAll.exe
  • <SYSTEM32>\WeedySpeedy.exe
  • <Full path to virus>
  • <Current directory>\autorun.inf
Deletes the following files:
  • <SYSTEM32>\autorun.inf
  • <Current directory>\autorun.inf
  • <Current directory>\WeedForAll.exe
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''

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