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Thread: How Virus works and kill it?

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  1. Aug 7th, 2006, 02:45 AM #1
    ComputerJy
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    Re: How Virus works and kill it?

    You should be knowing what you are doing in order to add code to a .exe file.
    It's doable, not a hard thing to do actually. You need to learn assembly language, debug a couple of files and you'll know how and where to insert new code.
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  2. Aug 8th, 2006, 03:44 AM #2
    camlearner
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    Question Re: How Virus works and kill it?

    Can you give me the guide to study Assembly Language(Beginning)?

    How Anti-Virus software know which file is virus?
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  3. Aug 8th, 2006, 11:32 AM #3
    ComputerJy
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    Re: How Virus works and kill it?

    Quote Originally Posted by camlearner
    Can you give me the guide to study Assembly Language(Beginning)?

    How Anti-Virus software know which file is virus?
    Each virus has a unique signature, it inserts it's signature in the first line of the file, so it doesn't keep infecting the same file over and over...

    Antivirus software has a database of these signatures, it checks for the signature in files when scanning
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  4. Aug 13th, 2006, 10:20 PM #4
    camlearner
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    Question Re: How Virus works and kill it?

    So it means when a new virus was create, Anti-virus software can not detect it until the signature of the virus has put in the signature of anti-vrus software?
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