We've received a new trojan that affects the popular new phones running Symbian Series 60 .
SymbOS/Skulls is a malicious SIS file that installs copies of Symbian system components on the C: drive of the device, and includes corrupted AIF (Symbian application info and icon file) for each file.
These installed System files then override the ROM versions in the start order, and prevent any of the symbian system tools being used. Thus rendering all but the phone functions of the phone useless.