Yes, I've heard of this and yes, I got one of these calls. The guy had a heavy accent and when he told me a virus was detected on my computer, my response was "you really think I was born yesterday? You're a scam!" and I slammed the phone down. I've never had another of that type.
What I DO get that drives me nuts are the calls about my credit card and this is my "final opportunity" to get a better rate or higher limit or something stupid like that. I hate these for several reasons - you hang up and then pick the phone back up and it's still going. You have to hang up a couple times to cut it off. Pressing the button to be taken off their list does nothing. I've researched them and for whatever reasons, the agency, I think it's the FCC, can't do anything about them.
So many times now, I screen my phone calls on my home phone for this very reason. I have found that as soon as my answering machine comes on, these recorded calls cut off. What a shame!!
Good luck!!