Dubbed Android/Lockerpin.A, the new trojan app tricks users into granting it device administrator privileges. To achieve this it mimics a patch installation window on top of an activation notice. When victims click on the continue button, they actually grant the malicious app rights that allow it to make changes to the Android settings. Lockerpin the sets or resets the PIN that unlocks the screen lock, effectively requiring users to perform a factory reset to regain control over the device. By contrast, earlier forms of Android ransomware generally were thwarted, usually by deactivating administrator privileges and then uninstalling the app after the infected device is booted into safe mode.