The scam has been exposed on the McAfee Avert Labs blog:
“For users who fall for this bait and click the link, they are directed to a site containing an image, tagging back to YouTube’s logo.
The fake YouTube links are the latest addition to a most-interesting list of Internet scams. At first there were the fake e-greeting cards and bogus login instructions followed later on. However, the new technique opens a door to a much wider array of possibilities. YouTube was the fist chosen because of its huge popularity, but social networking sites or other famous video-sharing websites might as well follow in the next weeks.
The conclusion: don’t be quick to follow a link, even though it might seem as a legitimate one.