Have you seen the following status update on a friend’s Wall:

Here is another similar Wall post that has gone viral as well:

HEADS UP, FB USERS–Some applications are sending porno messages under YOUR identity. If you don’t want to get into trouble with your Friends, copy and paste this message! If you receive a nasty message from me, I am NOT the one who sent it. Most are a video clip or post saying “X ANSWERED A QUESTION ABOUT YOU.” DON’T OPEN !IT IS A VIRUS!!!!!!! (Please re-post this to your status to let others know)

Most of these viral warnings contain a hint of truth to them but are too generic and vague to be much good. Based on some of the recent scams that have gone viral on Facebook, we believe this message could be referring to the Big Baby Born Amazing Effect scam and the Free Tub Hub scam that Sophos wrote about last week. Both of these scams have pornographic images displayed.

Toward the end of the update we see “X ANSWERED A QUESTION ABOUT YOU,” along with a virus warning. We believe this is in reference to the countless Facebook applications that inundate users with silly questions, comments and quizzes. Some of these apps have been known to contain viruses or other malware, and ALL of them spam the heck out of Facebook users. Think twice before installing these apps or taking part in them in any way. It is too difficult to know which ones contain malware, so we recommend you avoid them altogether. Your computer (and your Facebook friends) will thank you!