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Win32.HLLW.Autoruner1.37354

Added to the Dr.Web virus database: 2013-05-16

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates the following files on removable media:
  • <Drive name for removable media>:\system32.exe
  • <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
blocks the following features:
  • System File Checker (SFC)
Executes the following:
  • '%WINDIR%\explorer.exe' C:\
Modifies settings of Windows Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFolderOptions' = '00000001'
Modifies file system :
Creates the following files:
  • C:\system32.exe
  • C:\autorun.inf
  • <SYSTEM32>\system32.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\system32.exe
  • C:\system32.exe
  • <SYSTEM32>\system32.exe
  • C:\autorun.inf
Miscellaneous:
Searches for the following windows:
  • ClassName: '' WindowName: ''