We have a computer that's used (almost) exclusively by our kids. It had been hit a couple times by viruses, so, at my repeated urging, we finally made it a "Linux only" box. The kids have every functionality they need for school and recreation -- except Itunes. My wife is a Windows person, but still wanted to be the Admin on their computer. I didn't know that she hadn't installed NoScript. (We will!)
Tonight my daughter was on the computer doing research for a homework paper and was using a school site that linked to a science related site. All perfectly legit. As soon as she clicked on the link she was confronted by an official-looking warning screen from "Windows Web Security" that was claiming to find trojans, etc., on the "C:" (sic) hard drive, in folders like WINNT, etc.
My daughter freaked out a bit, but did exactly the right thing and called me upstairs. I told her we were in no danger -- it's Ubuntu ONLY
and we don't have
a C: drive, etc. I assume that the science site was hacked and that the malware executed a script within Firefox, but no actual virus could have been loaded (she doesn't have admin privileges) and it would be incompatible with Linux's file system and Operating System anyway. (But we cleared all of her browser history, cookies, etc., anyway.)
We also had a good laugh at the broken English warnings from the rogue anti-spyware!
I've linked a couple screen shots for the humor value. If I'm wrong about anything, please let me know!