Something like this happened about eight years ago.
This time it slipped past
Microsoft Security Essentials, and got caught by
Malwarebytes Anti-Malware.
Or so I thought.
What happens is a website gets taken over. When you visit it, BAM!
Normally, I get a warning about the site, as I did this time.
At any rate, when I started scanning to be sure that nothing had gotten by, the number of infected files started shooting past 100.
It was either one virus opening the way for many others, or a shotgun effect of many viruses trying to overload the anti-virus system.
Ultimately, there were about 160 files infected. Fortunately nothing critical, or un-repairable.
It's in the nature of the these virus programmers to make every attempt to bypass the latest anti-virus programs.
When I become
King of the World every one of them will be castrated.
With a fork & butter knife.
PS - I don't know if this'll help anyone else, but once you think that you have the problem licked, go to one of the major anti-virus companies.
Almost all of them will let you do an online virus scan.
If you're REALLY paranoid, use two companies.
PSS - I've started to get interested in amphibious aircraft. Particularly the de Havilland DHC-2 & DHC-6.
The cockpit panel would be relatively simple to make into a ............
BAM!Don't ask me where the site was, I'd been looking at one site after another for an hour or more. Just following links.
So it's definitive. It's a Canadian virus! 
your-home-page.net 
...!
...!
