So we have antivirus2009 taking your files hostage and telling you to get FileFix pro to get them back. So we should probably stop trusting what software tells us and make our own minds up right?
Oh, but then there's the web-based service that we should allow full access to our files to regain our files. Right. Not at all going to confuse the average user on the what you should allow/what you shouldn't allow.
The way FireEye are doing this is just going to fuel scareware even more as users begin to see allowing websites unfettered file access as a Good Thing (c).