Try what Grif notes and start scanning.
No, almost all antivirus suites are not blocking these.
Grif's notes at http://forums.cnet.com/7726-6122_102-5509131.html?tag=posts;msg5509131
Bob
When I turn my computer on and at other times during the day I get a pop-up screen that wants to install installerapplicationusa.com. I don't know what that is and don't want it on my computer. How do I stop it from trying to install? I've checked the Startup and don't find it. I've checked the Register and don't find it. I did a search of my C drive in Windows Explorer and didn't find it. I'm out of ideas. Can anyone tell me how to get rid of it?
Here's a bit more info, not sure how relevant it is.
I'm using a Toshiba laptop running Windows 7 Ultimate 64-bit. My browser is Mozilla Firefox.

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