(UPDATED) Also known as: "Girl kills herself over Facebook post."
When last I checked, variants of the following message were replicating in the form of Facebook status updates about once every 10 seconds:
WARNING: THERE IS A VIRUS GOING AROUND AGAIN, IF YOU SEE A GIRL WHO KILLED HERSELF OVER SOMETHING HER FATHER WROTE ON HER WALL DO NOT OPEN IT, IT IS A VIRUS AND IT WILL NOT ALLOW YOU TO DELETE IT, PLEASE PASS THIS ON BEFORE SOMEONE OPENS IT. (IT IS A SELF REPLICATING TROJAN)
Here's another version:
WARNING!!!!! IF YOU SEE A STATUS APPEAR ON YOUR WALL ABOUT A STORY OF A GIRL WHO KILLED HERSELF BECAUSE OF SOMETHING HER FATHER WROTE ON HER FACEBOOK WALL!!! DO NOT OPEN IT !!!! IT IS A VIRUS AND WILL RELEASE A TOJAN VIRUS IN TO YOUR COMPUTOR. PLEASE CUT AND PASTE THIS TO YOUR WALL!!!!
No such virus or Trojan exists. What does exist i.e., what people have evidently mistaken for a virus because they don't understand how it spreads is a clickjacking scam whereby Facebook users are conned into following links that promise to show them a wall post that caused a girl to kill herself. No such post exists. If you do click on the link, the first thing that happens is that you're asked to share it with friends or grant a third-party app permission to post to your page. Then you're asked to complete a survey (which is how the scammers make money by driving traffic to it). You'll never see that wall post that caused a girl to commit suicide. Because it isn't there.
So, this much is true: if you see links about some girl killing herself because of something her dad posted, don't click on them not because it's a virus, but because it's a scam that keeps on replicating precisely because people like you and me keep getting suckered into clicking on it.
Help me track Facebook rumors:
• How to Submit Suspected Hoaxes & Urban Legends