Date Added: Dec 2011
The recent proliferation of malicious code that spreads with virus code exacerbates the problem. In this paper, the authors present a general overview on evolution of virus, malwares and defensive employed by advanced anti-virus techniques. Computer viruses gradually improve codes to make them invisible. Anti-virus technologies continually follow the tricks and technologies to overcome the virus. With the help of anti-virus experts design and develop new methodologies to make them stronger. This paper is to define the last malware and prevent the computer from malware, malicious and viruses.