GM Bot: Alive and Upgraded, Now on Android M

IBM X-Force Research detected a recently updated version of the GM Bot mobile banking malware designed to deploy on Android 6 operating systems and bypass new security applied to the platform. Android officially released this Marshmallow OS, code-named M, in October 2015. The GM Bot version we analyzed can work on all Android versions up…

Android.Lockscreen ransomware now using pseudorandom numbers

New variants of Android.Lockscreen are using pseudorandom passcodes to prevent victims from unlocking devices without paying the ransom. Previous versions of these threats locked the screen and used a hardcoded passcode, but analysts were able to reverse engineer the code to provide victims with the passcode to unlock their devices. Attackers have also combined a…