If you are a regular user of FB, there is a high chance that you must have seen something like this in your Newsfeed.
If you click the Share button, a popup window will come up asking you to Share the content with your friends.If you try to Skip it, an alert window will come saying unless you share this, you won't be able to see the content.
Driven by curiosity and unaware of the consequences, many people will actually share it!!, leading to further propagation of the scam. The result of all these so called "Steps" is that you will be presented with page asking you to perform "Human Verification" by completing a survey!!.Each time someone does a survey, the Scammer get money!! and free publicity, what an amazing marketing strategy!!.
By checking the source code of the page, it can be seen that Scammers are exploiting FB's own social plugin APIs!!.
In this particular case, FB's own APIs are being used, and no password stealing code/malware download code has been found.But since 'liked' page has the capability to push content into the user, its very much possible to do worm/Trojan spreading using similar tactics.
Digging deep into the code, the final destination to which user will taken after Liking and Publishing is found.
This just one of the hundreds if not thousands SCAMS that being propagated over FB, most of them uses the same tactics.If you have already fallen for one, go to Likes and Interests in your profile and remove the particular page.If you haven't , be careful not be a victim.Happy Facebooking!! :)