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Win32.HLLW.Autoruner.49687

Added to the Dr.Web virus database: 2011-05-15

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates the following files on removable media:
  • <Drive name for removable media>:\Pictures.lnk
  • <Drive name for removable media>:\Documents.lnk
  • <Drive name for removable media>:\Video.lnk
  • <Drive name for removable media>:\Music.lnk
  • <Drive name for removable media>:\Passwords.lnk
  • <Drive name for removable media>:\wuaux.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\New Folder.lnk
  • <Drive name for removable media>:\wuauxx.exe
Malicious functions:
Creates and executes the following:
  • '%HOMEPATH%\bwsap.exe'
  • '%HOMEPATH%\wuaux.exe'
  • '%HOMEPATH%\atlop.exe'
Executes the following:
  • '<SYSTEM32>\tasklist.exe'
Modifies file system :
Creates the following files:
  • %HOMEPATH%\dwsap.exe
  • %HOMEPATH%\wuaux.exe
  • %HOMEPATH%\cwsap.exe
  • %HOMEPATH%\atlop.exe
  • %HOMEPATH%\bwsap.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\wuaux.exe
  • <Drive name for removable media>:\wuauxx.exe
  • %HOMEPATH%\wuaux.exe
  • <Drive name for removable media>:\autorun.inf
Deletes the following files:
  • %HOMEPATH%\atlop.exe