Macbeans, I believe if you would do a little research on this subject you would find that the RIAA and the MPIA are behind these malicious acts. They use organizations to flood the network with fakes, worms, and viruses in hopes to discourage p2p sharing.
Also take a look here.
http://www.gnutellaforums.com/open-d...rch-terms.html.
This should help explain it.