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Win32.HLLW.Autoruner.49531

Added to the Dr.Web virus database: 2011-05-13

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WinDefender' = '%APPDATA%\JavaApp.exe'
Malicious functions:
Creates and executes the following:
  • %APPDATA%\JavaApp.exe 
Executes the following:
  • <SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "WinDefender" /t REG_SZ /d "%APPDATA%\JavaApp.exe" /f
  • <SYSTEM32>\cmd.exe /c ""%TEMP%\lQruN.bat" "
Modifies file system :
Creates the following files:
  • %APPDATA%\lovely.ini
  • %APPDATA%\JavaApp.exe
  • %TEMP%\lQruN.bat
Sets the 'hidden' attribute to the following files:
  • %APPDATA%\JavaApp.exe
Deletes the following files:
  • %TEMP%\lQruN.bat
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''