Wired News: Cheapskate's Guide to a Safe PC

Wired News: Cheapskate's Guide to a Safe PC: "MyDoom virus-laden e-mails may no longer be clogging inboxes, but security experts believe the worm may still be active on thousands of computers around the globe.
Each of those infected computers now contains a backdoor that allows any malicious hacker with a modicum of technical skills to remotely access and control the infected machines, doing anything a user sitting in front of the computer's keyboard could do.
But wait ... there's more.
'Chances are those MyDoom computers are also harboring other viruses, spyware, Trojans and all sorts of garbage,' says London-based network administrator Nick Bayless. 'Some people's computers are the virtual version of an insane asylum and a prison, home to all sorts of crazy, ill-intentioned and just plain bad characters.' "