You receive a message on your profile, as a recommendation coming from one of your friends. Your buddy suggests clicking on a link to see who is virtually stalking you.
If you do click on the link, you're taken to a page that requests your permission to access private information. When you do so, the message immediately reposts itself on all your friends' walls and you're prompted to fill out a phony questionnaire. You won’t see your Facebook "stalkers" whatsoever.
The whole thing is a scam to trick more people to installing the spamming app and clicking through to survey pages.
How to avoid: Facebook doesn’t have a feature that shows who visited your profile – at least not yet. Don’t open any links promising you that.