Today we also got another sample which contains two new Symbian malwares. MGDropper is a malicious file distributed as Metal Gear.SIS. It disables file managers and Anti-Virus programs (but fails to disable F-Secure Mobile Anti-Virus).
This thing also installs Cabir.G. Unlike Skulls trojans, MGDropper disables only the phone application installer, not all built in applications.
This thing is detected with Generic detection by F-Secure Mobile Anti-Virus.