Trampoline

Trampoline is the codename for the iPhone 5's OTA Update Enabler. iOS 6.0 on the iPhone 5 apparently included a bug that prevented OTA updates from occurring properly. As a result, Apple made the OTA update process a little less straightforward.

Trying to perform an OTA update informs you about the updater app, and how to obtain it.

Process

 * Spawn by update daemon (causes elevated privileges)
 * Mount Disk Image  at
 * Copy contents off (essentially )
 * Reboot
 * Daemon runs and patches files
 * Daemon deletes Trampoline
 * Reboot

iOSUpdater.app Notes

 * The app can be installed on a device via iTunes.
 * iOS Updater can't be deleted on the device, but can be removed via iTunes.
 * The app appears to require elevated (root) privileges.
 * iOS Updater is deleted on successful update.
 * Among with iOSUpdaterHelper.dmg, in iOSUpdater.app, there is its signature. This prevents hackers from replacing it with an unofficial image.