In this presentation, we describe high-impact user interface attacks on Android-based mobile devices, additionally focusing on showcasing the possible mitigation techniques for such attacks. We discuss which UI redressing attacks can be transferred from the desktop- to the mobile-browser field. Our main contribution is a demonstration of a browser less tap-jacking attack, which greatly enriches the impact of previous work on this matter. With this technique, we can perform unauthorized home screen navigation and attempt actions like (premium number) phone calls without having been granted appropriate privileges. We will show, with an 0day, how an attacker can install applications in the background though it should be fixed by Google in Android v4.