Rick Astley used to be a big star in the 80's but now, thanks to some people in YouTube, have become some sort of a joke because of the Rick Roll'd phenomenon. It seems to have died a natural death around late 2008, but it seems to have made a comeback, in a somewhat sinister way: he's become a worm for jailbroken iPhones.
"Apple iPhone owners in Australia have reported that their smartphones have been infected by a worm that has changed their wallpaper to an image of 1980s pop crooner Rick Astley.
The worm, which could have spread to other countries although we have no confirmed reports outside Australia, is capable of breaking into jailbroken iPhones if their owners have not changed the default password after installing SSH. Once in place, the worm appears to attempt to find other iPhones on the mobile phone network that are similarly vulnerable, and installs itself again."What a way to have the iPod Touch/iPhone's first worm: an image of an 80's star.
If your iPod Touch/iPhone has it, fret not as all it does is install Astley's wallpaper. To remove it, you need to change your root user password and delete "LOCKBACKGROUND.JPG" from (VAR/MOBILE/LIBRARY).
What's interesting here is that the creator has a message for those who got the worm.
iPhone 3G's security is really bad.