>>4
Well, there's at least one program called "AntiVirus 2009" or something similar that is actually a piece of Russian malware. It poses to be a virus scanner and diagnoses fake infections, then demands a subscription fee to remove them, thus scamming non-technical people out of their credit cards. And if it sets up shop on your computer, get ready to have a lot of fun trying to remove it...

As for the big guys like Symantec, Kaspersky, etc. I have no idea. There's quite enough nasty stuff coming from 3rd world countries that they don't need to, I expect.