Symantec has released information regarding the first ever Trojan virus targetting the iPhone. Accordingly, the firmware 1.1.3 prep application was causing problems to users after it was uninstalled.

Various reports mentioned that the application package doesn't have much effect on the iPhone upon installation. All it does is say "shoes."

However, once users have uninstalled it, the malicious program overwrites valid programs such as Erica's Utilities, OpenSSH, and Sendfile then deletes them. Users must then have to reinstall these applications.

The risk that comes from installing the program is minimal as the site hosting it has been taken down. Even though this is the case, iPhone users should take caution when it comes to installing applications to their units as the first ever Trojan virus has appeared.