Your computer will belong to hackers after this one-two-three blast from Bagle.BC, Bagle.BD and Bagle.BE. That’s the fervent desire of the virus creators.

All three need email, networks and/or file sharing apps like KaZaA to propagate. Once onboard, they open TCP port 81, download their payloads, disable your security software, replicate, and wait for further orders.

These viruses are easy to stop by setting your network content filter to disable potentially dangerous unknown email content. (Better border appliances also automatically update for known viruses.) That’ll buy users time to get all their personal filters up-to-date.