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Win32.HLLW.Autoruner1.12392

Added to the Dr.Web virus database: 2012-02-22

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}] 'StubPath' = '%WINDIR%\Explorer32.exe'
  • [<HKCU>\Control Panel\Desktop] 'SCRNSAVE.EXE' = '%WINDIR%\Explorer32.scr'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Explorer32' = '%WINDIR%\Explorer32.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\Photos.exe
Malicious functions:
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
  • %WINDIR%\Explorer32.scr
  • C:\Photos.exe
  • C:\autorun.inf
  • %HOMEPATH%\prefs.js
  • %WINDIR%\Explorer32.exe
Sets the 'hidden' attribute to the following files:
  • C:\Photos.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\Photos.exe
  • %WINDIR%\Explorer32.exe
  • %WINDIR%\Explorer32.scr
  • C:\autorun.inf
Deletes the following files:
  • %TEMP%\~DFA0ED.tmp
Network activity:
Connects to:
  • 'localhost':1035
Miscellaneous:
Searches for the following windows:
  • ClassName: 'MS_WebcheckMonitor' WindowName: ''
  • ClassName: 'MS_AutodialMonitor' WindowName: ''