The motivations of the top virus writers can often seem paradoxical. They spend hours dreaming up new strategies to infect computers, then hours more bringing them to reality. Yet when they're done, most of them say they have little interest in turning their creations free. Though Philet0ast3r is proud of his keylogger, he said he does not intend to release it into the wild. His reason is partly one of self-protection; he wouldn't want the police to trace it back to him. But he also said he does not ethically believe in damaging someone else's computer.
So why write a worm, if you're not going to spread it?
For the sheer challenge, Philet0ast3r replied, the fun of producing something 'really cool'. For the top worm writers, the goal is to make something that's brand new. A truly innovative worm, Philet0ast3r said, 'is like art'. To allow his malware to travel swiftly online, the virus writer must keep its code short and efficient. 'One condition of art,' he noted, 'is doing good things with less.'