Oct 28, 2010 17:41 GMT  ·  By

A new scam is rapidly spreading on Facebook by tricking users with videos about the risks of knuckle cracking, which actually lead to surveys.

The spam messages spread by people who fell victim to this attack will read: "You will never crack your knuckles again after seeing this!"

The link leads to a site hosted on an external server, which is designed to mimic a Facebook application page and displays a video player-like thumbnail.

Clicking on the image forces the user to Like the page and in this case the scammers go as far as to warn them about it.

"By clicking anything on our website you are using the 'Like' function on Facebook to like our page, and by doing so are agreeing that you are doing so on your own free will," a disclaimer added at the bottom of the page reads.

After liking the page, victims are asked to take one of several offers allegedly as part of a "human verification" process.

It's worth noticing that these attackers didn't use the word "survey," probably because people are starting to catch on these scams.

But calling them "offers" doesn't change anything. They still use deceptive methods of getting users subscribed to premium rate services.

For every victim who ends up subscribing, the scammers receive a generous commission from affiliate marketing companies.

Facebook has recently launched legal action against two individuals and a company accused of instrumenting survey scams on the platform.

Users, who believe that they fell victim to this or a similar scam, should unlike the rogue ones, remove all spam messages posted on their walls and check their list of authorized applications for any suspicious-looking ones.

In addition, people who provided their phone number during one of these surveys, should contact their mobile operator and check if they were subscribed to any premium service.

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