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virus signature

   Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
virus signature
The binary pattern of the machine code of a particular virus. Antivirus programs compare their database of virus signatures with the files on the hard disk and removable media (including the boot sectors of the disks) as well as within RAM. The antivirus vendor updates the signatures frequently and makes them available to customers via the Web. See antivirus program.


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In some cases, it hot half of any customer s machines after they updated to the latest virus signature file.
They usually release recent virus signature updates weekly, depending on the type of antivirus offering this PC protection.
A virus signature is the unique part of that virus.
 
 
 
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