Trojan:SymbOS/Fontal.E is distributed in a malicious SIS file named 'EICAR Anti-Virus.sis'. On execution, the trojan installs a corrupted Font file onto the device, thus causing the device to fail to start at the next reboot.
F-Secure Mobile Security will detect Fontal.E and delete the trojan's components.
After disinfecting the phone, remove the remaining empty directories by going to the Application Manager and uninstalling the SIS file in which Fontal.E arrived (EICAR Anti-Virus.sis).
CAUTION This method will remove all data on the device, including calendar and phone numbers.
If a phone is infected with Fontal.E, it must not be rebooted as the trojan will prevent the phone from booting again. If the phone is rebooted, it will try to boot, but will be forever stuck on phone startup and cannot be used without reformatting the phone.
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