DESC: Norton AntiVirus 2005 - 3 Pack Symantecs Norton AntiVirus 2005 is the worlds most trusted antivirus solution. It removes viruses, worms, and Trojan horses automatically without interrupting your work. New Norton Internet Worm Protection blocks certain more sophisticated worms (such as Blaster and Sasser) before they enter your computer. Norton AntiVirus can also detect spyware and other non-virus threats.