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Win32.HLLW.Autoruner1.4513

Added to the Dr.Web virus database: 2011-11-26

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'load' = '%WINDIR%\System\esentutl.exe'
Malicious functions:
Creates and executes the following:
  • %WINDIR%\system\esentutl.exe /waitservice
Modifies file system :
Creates the following files:
  • %WINDIR%\sessmgr.exe
  • %WINDIR%\system\esentutl.exe
  • %WINDIR%\spoolsv.exe
  • <LS_APPDATA>\clipsrv.exe
Network activity:
Connects to:
  • 'www.ka###rus.com':80
TCP:
HTTP GET requests:
  • www.ka###rus.com/img/gt.cgi?s=#################
UDP:
  • DNS ASK www.ka###rus.com
  • '<Private IP address>':1035