Read about this malicious threat. You must know what this is!!!!
A worm is a type of virus or replicative code that situates itself in a computer system in a place where it can do harm. There are viruses (such as Melissa) that don’t “worm themselves in” to a place where they can do much harm and simply replicate themselves by e-mail to many computers. Worm.ExploreZip is an example of a worm. Like most computer viruses, worms usually come in Trojan horses
Learn more: Trojan Horses
