Fontal Trojan

Fontal.A is a SIS file trojan that installs corrupted Font file into infected device, thus causing the device to fail at next reboot.

If a phone is infected with Fontal.A, 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.

In addition of installing the corrupted font file the Fontal.A also damages the application manager so that it cannot be uninstalled, and no new applications can be installed before the phone is disinfected.

Manual disinfection

  Install file manager on the phone
  Go to c:\System\apps\appmngr
  Delete appmngr.app
  Go to the application manager
  Uninstall the SIS file in which the Fontal.A was installed in

Detailed Description

Spreading in Kill Saddam By OID500.sis

When the Fontal.A SIS file is installed the installer copies files into following locations:

\system\apps\appmngr\appmngr.app

\system\apps\kill sadam\kill sadam.app

\system\apps\fonts\kill sadam font.gdr

The appmngr.app is non-functional file that disables application manager, the kill sadam.app is hexedited utility that has been modified to show text reboot, and has no other significant function for the trojan.