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Profil

Win32.HLLW.Autoruner1.13641

Added to the Dr.Web virus database: 2012-03-19

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows' = '%TEMP%\Windows.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MicrosoftUppage.exe' = '%WINDIR%\Temp\MicrosoftUppage.exe.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\black.scr
Malicious functions:
Creates and executes the following:
  • C:\mcrupdate.exe
  • C:\mcrupdate.exe (downloaded from the Internet)
Modifies file system :
Creates the following files:
  • C:\black.scr
  • C:\autorun.inf
  • C:\mcrupdate.exe
  • %WINDIR%\Temp\MicrosoftUppage.exe.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\black.scr
  • C:\autorun.inf
  • C:\black.scr
Network activity:
Connects to:
  • 'co#####hosting.x10.mx':80
  • 'wp#d':80
TCP:
HTTP GET requests:
  • co#####hosting.x10.mx/Nudes.exe
  • wp#d/wpad.dat
UDP:
  • DNS ASK co#####hosting.x10.mx
  • DNS ASK wp#d
  • '<Private IP address>':1035
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: 'Indicator' WindowName: ''