| Though viruses are mushrooming at a
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| | values of the executable files. The
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| faster rate than vaccines still there are
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| software to assist its users to keep
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| their computer system virus free. At
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| | Vaccination :
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| present, the following are the most
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| | The vaccinators inject some code into the
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| popular anti virus software:
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| | executable files. When the vaccinated
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| The function of anti-virus software is to
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| perform one or more of the following
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| | Inoculation :
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| functions:
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| | The inoculators insert the virus
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| Prevention :
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| | signature into infected areas or files at
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| Anti-virus programs may be preventive or
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| | appropriate location. When the virus
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| restorative. Preventive techniques
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| | performs their self detection, they find
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| include stopping attempts at direct
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| | their signature and believe that the
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| access such as formatting and deleting,
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| | memory/disk/file is already infected and
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| or even write protecting the hard disk
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| | so do not infect.
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| while testing familiar software. The
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| | Damage control :
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| restorative process is achieved by
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| | The better equipped anti-viral programs
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| maintaining a copy of CMOS information,
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| | are also capable of controlling damages
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| boot sector information, the file
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| | caused due to virus attack.
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| allocation table, etc., in a safe area
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