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Win32.HLLW.Autoruner.47780

Added to the Dr.Web virus database: 2011-04-16

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\604197192] 'Name' = '%TEMP%\3.tmp'
Malicious functions:
Creates and executes the following:
  • <Current directory>\2.exe 
  • <Current directory>\1.exe 
  • <Current directory>\xUvo706504cexCvmaMo7l9.exe 
Injects code into
the following system processes:
  • <SYSTEM32>\spoolsv.exe
Modifies settings of Windows Internet Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'
Modifies file system :
Creates the following files:
  • %WINDIR%\Temp\4.tmp
  • %HOMEPATH%\yuiroo.exe
  • %TEMP%\Aqz..bat
  • %TEMP%\2.tmp
  • <Current directory>\1.exe
  • <Current directory>\2.exe
  • <Current directory>\xUvo706504cexCvmaMo7l9.exe
Deletes the following files:
  • %WINDIR%\Temp\4.tmp
  • <DRIVERS>\etc\hosts
  • %TEMP%\3.tmp
Deletes itself.
Network activity:
Connects to:
  • 'bo###rnation.in':80
TCP:
HTTP POST requests:
  • bo###rnation.in/8723he7e72.php?in##############################################################################################################
UDP:
  • DNS ASK na##d.ru
  • DNS ASK bo###rnation.in
  • DNS ASK go##le.at
  • '<Private IP address>':1035