Australian Apple iPhone users have been infected by a worm which changed their wallpaper to an image of 1980s pop crooner Rick Astley.
The worm affects only jailbroken iPhones, with if their unchanged SSH default password after install. The worm also appears to attempt to find other iPhones on the mobile phone network that are similarly vulnerable, and installs itself again. There is no news of this worm from outside Australia yet.

The worm – written by a hacker calling themselves “ikex” – changes the lock background wallpaper to an image of Rick Astley with the message:

“ikee is never going to give you up”

The worm will not affect users who have not jailbroken their iPhones or who have not installed SSH.

By now it appears that the worm does nothing more malicious than spread and change the infected user’s lock screen wallpaper. However, that doesn’t mean that attacks like this can be considered harmless.