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Win32.HLLW.Autoruner1.25935

Added to the Dr.Web virus database: 2012-09-18

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'MstInit' = '%APPDATA%\mstinit.exe /waitservice'
  • [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'load' = '<DRIVERS>\ieudinit.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'DllHst' = '<DRIVERS>\dllhst3g.exe /waitservice'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'ComRepl' = '%WINDIR%\System\comrepl.exe /waitservice'
Malicious functions:
Creates and executes the following:
  • <DRIVERS>\ieudinit.exe /waitservice
Modifies file system :
Creates the following files:
  • %APPDATA%\mstinit.exe
  • <DRIVERS>\ieudinit.exe
  • <DRIVERS>\dllhst3g.exe
  • %WINDIR%\system\comrepl.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

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