The latest viral scam making its way around Facebook is a lure that asks users if they want to install a "dislike" button, says the security firm Sophos.

The scam, like previous ones that promise users certain content for clicking on a link, tricks Facebook members into giving a rogue application permission to access their profile and then posts spam messages from the victim's account and requires the completion of an online survey in order to proceed to the "dislike" button. Last week, a similar ruse made the rounds and offered a video of an Anaconda snake coughing up a hippopotamus. Like the snake-video scam, the "dislike" button scam asks users for permission to access their profile and write on their wall before they can install the application.

More: http://www.computerworld.com/s/article/9180769/