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Antivirus (or anti-virus) software is used mainly for the prevention, detection, and removal of malware, like computer viruses, bugs etc. Antivirus software also assists by preventing and removing adware, spyware, and other forms of malware.
A variety of strategies are typically employed in the assemblage of antivirus software. The signature-based detection attribute of the antivirus software involves searching for known malicious patterns in executable code. However, it is possible for a user to be tainted with new malware in which no signature yet exists. Heuristics can be used effectively to counter such so called zero-day menaces. The most common sort of heuristic approach, generic signatures, is capable of identifying the new viruses or variants of existing viruses looking for known malicious code in files. |