ANTI VIRUS WORKING TECHNIQUE AND iVDF

Those who are manually updating their anti virus software has been came across the term iVDF.It stands for incremental Virus Database File.iVDF will be added to the existing VDF file in antivirus.This file contains the signature and characteristics of different viruses,which is used to compare the files during scanning and identify the virus.I think now you are clear about the iVDF concept,it is nothing but is produced to identify the new type of viruses that are spreading from time to time.Every time the file is scanned it compares it with the VDF signatures it have to identify the virus.