Security researchers from Kaspersky continue to analyze pieces of malware designed to target Android devices. One interesting threat is Trojan-SMS.AndroidOS.FakeInst.ef, an SMS Trojan that’s designed to target users in 66 countries.
The Trojan was first spotted in February 2013 and over a dozen new versions have been released since then.
The first variants were only designed to send SMSs to premium rate numbers in Russia. However, cybercriminals kept adding more and more countries to the list, until they reached 66.