In the current occasions, the most testing danger for the IT society is Virus. It is a program which is destructive for PC frameworks. An infection can erase different projects and information put away in a PC, and even can stop activity of a framework. Infections can go into any PC from the web or other media. Anyway, presently the inquiry is that - what ought to be done to shield a PC from infection? The appropriate response would be only a conceivably rich enemy of infection programming.