First iPhone Worm Discovered, Rickrolls Jailbroken Phones
Unexpof writes "Users of jailbroken iPhones in Australia are reporting that their wallpapers have been changed by a worm to an image of '80s pop icon Rick Astley. This is the first time a worm has been reported in the wild for the Apple iPhone. According to a report by Sophos, the worm, which exploits users who have installed SSH and not changed the default password, hunts for other vulnerable iPhones and infects them. Users are advised to properly secure their jailbroken iPhones with a non-default password, and Sophos says the worm is not harmless, despite its graffiti-like payload: 'Accessing someone else's computing device and changing their data without permission is an offense in many countries — and just as with graffiti there is a cost involved in cleaning-up affected iPhones. ... Other inquisitive hackers may also be tempted to experiment once they read about the world's first iPhone worm. Furthermore, a more malicious hacker could take the code written by ikee and adapt it to have a more sinister payload.'"
Ars technica reported a similar case in the Netherlands about a week ago. A teenage "hacker" replaced the wallpaper with one showing an alert that told the user to give him 5 euros for instructions to remove the "virus". Full article
It may be 7 digits, but at least it's a semiprime
Go to Cydia, manage tab, packages, and see if OpenSSH is on the list of installed packages.
If it is, download and install a package from Cydia called MobileTerminal.
Start MobileTerminal, type in "su", then type in the default password "alpine", then type in "passwd", and set a new password (don't use " quote marks " in any of these commands)
also this article fails to mention that the worm disables ssh after infecting the device.. therefore kinda cleaning up the problem ..