Infected ferociously (Score 5, Interesting)

I was wondering where I got this from. I spent 4 hours removing Malware from my computer the other day. Since I don't tend to visit pr0n sites at work, I had know idea how I was so badly infected until now... Ad-aware, spybot, and Nortons did not find the evil software. My process list was filled with MANY unkillable process with random names. Every time I killed one, it would start again with a new name. I found the executables on my drive and deleted them, they would RE-CREATE themselves!! Also, it looked like one of the installed viruses(?) would download new Malware! I was wondering, is this a virus? is it spyware? It was hard to classify as far as I could tell and it SUCKED.