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Signature Based Scanning

It is the default scanning method in Quick Heal. This is not provided as option and used in every scan. This module scans for viruses based on their signatures. These signatures are stored in a signature database that is shipped with Quick Heal and updated regularly to cover the solution to new viruses.

What is Virus Signature?
A signature is a sequence of bytes using which a scanner can identify a infected file. This sequence is found out by anti-virus researchers after studying the virus program. A infected file has these bytes added to it by the attacking virus as it tries to duplicate itself.