Added Android Overlay Protection

Author: wizche

README.md

@@ -2,6 +2,8 @@
 
 Harmless Android malware using the overlay technique to steal user credentials.
 
+> **UPDATE 15.12.2016** we open-sourced our **Android Overlay Protection app**, you can check it out the source code [here](https://github.com/geeksonsecurity/android-overlay-protection).
+
 > **UPDATE** starting with Android 5.1 the [ActivityManager.getRunningAppProcess](http://developer.android.com/reference/android/app/ActivityManager.html#getRunningAppProcesses) API don't return all processes running on the system anymore. We moved to a more *naive* solution which doesn't require any permissions, for more information [press here](http://stackoverflow.com/questions/30619349/android-5-1-1-and-above-getrunningappprocesses-returns-my-application-packag).
 
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