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Win32.HLLW.Loader.29

Added to the Dr.Web virus database: 2011-08-14

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,%WINDIR%\<Virus name>.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\Autorun.inf
  • <Drive name for removable media>:\qOBQp.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Forces autoplay for removable media.
Modifies file system :
Creates the following files:
  • %WINDIR%\<Virus name>.exe
  • %WINDIR%\spoollist.txt
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\t7[1].txt
Sets the 'hidden' attribute to the following files:
  • %WINDIR%\<Virus name>.exe
  • <Drive name for removable media>:\qOBQp.exe
Network activity:
Connects to:
  • 'd.##ei.net':80
  • 'localhost':1038
TCP:
HTTP GET requests:
  • d.##ei.net/list/t7.txt
UDP:
  • DNS ASK d.##ei.net