That's true. Biological viruses are kind of in between computer viruses and computer worms. I still think a worm is a decent analogy, though. For example, the

That's true. Biological viruses are kind of in between computer viruses and computer worms. I still think a worm is a decent analogy, though. For example, the first thing a worm will often do is scan the local network and try to infect each "living host" it finds in its vicinity. In some sense it can be seen as having some kind of willpower or intention, but it's a little more like a blind, unthinking process of trying to constantly fire itself in all directions, not unlike how a virus is unthinkingly regularly emitting itself into the air around it to infect those in its vicinity.