The OP wasn't real clear about what happened to his 'puter, but it sounds like it might be similar to something that happened to me awhile back, and I think I made you aware of it, Luke. Maybe not, but anyway, I clicked on one of the ads to one of the weapons manufacturers that advertises on this site. I won't name the site, because I subsequently found out it doesn't really matter, the "System Check" exploit can be triggered from multitudes of sites. Apparently, a small System Check popup is planted on our computers through cookies or other small bits of info we gather as we surf. It sits and waits for a "trigger" bit of info when you visit a site that has been implanted with that bit of software. Neither the site nor the computer it triggers is infected with the exploit itself, visiting the site just launches the System Check popup that's been sitting resident on your computer. It's when you fall for the come-on that you infect your computer. You do that by clicking on some kind of "Scan Now" or "OK" button. If you make that click, recovering from it can be very difficult. I'm embarrassed to say that I found out the hard way, and before I found a real cure, I lost a ton of files when I tried to do a system restore while the exploit was still active.
So anyway, if this sounds anything like what happened to the OP, a good guide on how to cure your 'puter
can be found here. You'll find as you're reading about System Check that it is not a "virus" or "trojan" or anything that comes from USA Carry. Most likely the trigger is just transmitted either by clicking on an ad here, or maybe as someone else said, being "pushed" through the servers housing one (or more) of those ads. Hope that helps.
Blues