F Best free antivirus software and antivirus software reviews

Best free antivirus software and antivirus software reviews

Best free antivirus software - what's it, where to find it and how to download or buy it. I'll try to find for you a lot of different antispyware and antivirus software products

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Monday, December 17, 2007

Virus Signature

Glossary In the antivirus world, a signature is an algorithm or hash (a number derived from a string of text) that uniquely identifies a specific virus. Depending on the type of scanner being used, it may be a static hash which, in its simplest form, is a calculated numerical value of a snippet of code unique to the virus. Or, less commonly, the algorithm may be behavior-based, i.e. if this file tries to do X,Y,Z, flag it as suspicious and prompt the user for a decision. Depending on the antivirus vendor, a signature may be referred to as a signature, a definition file, or a DAT file.

From Mary Landesman

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