internet worm is achieving what Apple has been unable
to do -- punish those with jailbroken iPhones (phones freed of
Apple's app restrictions). Sophos, a leading security firm,
appears to be the first to have
investigated the amusing virus. The virus, which
"rickrolls" users, changing their wallpaper to an image of
Rick Astley. It appears to do little else other than spreading
to other jailbroken iPhones in the user's contact list.
worm can infect any jailbroken iPhone with SSH installed and an unchanged default
password. The password on jailbroken iPhones defaults to
"alpine". Users can change this by installing the
MobileTerminal app, available from the Cydia
undergound app store, and typing the command passwd.
the Rick Astley worm appears to be mostly confined to Australia at
this point, European iPhone users with jailbroken phones received a
surprise last week. A Dutch hacker sent numerous users with
jailbroken iPhones a message, demanding they pay him 5 euros.
Like the Astley virus, the hacker took advantage of the fact that
many users have jailbroken iPhones with unchanged passwords. A
"trivial" port discovery and login via the SSH protocol
later, the hacker was able to post his ransom demand.
hacker has since recanted and stopped asking people for Paypal
payments, and has now posted free instructions of how to protect
jailbroken iPhones. While these incidents may have been mere
annoyances, its seems only a matter of time before an actual
malicious virus is unleashed on the jailbroken iPhone community.