Ever since Facebook introduced the “like” button for comments, photos, status updates, etc., many users have expressed the need for a “dislike” button to level things out. Now unscrupulous marketers are using peoples’ desire for a dislike button to their own advantage.
Much like other Facebook scams — for example, the recent Coke video scam — this one begins with a faux status update from one of your friends.
It will read something like: “I just got the Dislike button, so now I can dislike all of your dumb posts lol!!” or “Get the official DISLIKE button NOW”! and will be followed by a link you shouldn’t click on.
If you do click on the link, giving the permission for the “application” to run will also give it access to your profile and account info. It will also post a status update from your account that your friends might click on, and so on and so forth. Then, instead of a dislike button, you’re told you must complete a survey first.
Eventually, you will be directed to the Firefox add-on page for a real Facebook dislike button created by FaceMod. According to Sophos.com, it does not appear as if FaceMod has anything to do with the survey scam other than their add-on “being used as bait.”
Facebook Dislike button scam spreads virally [Sophos.com]