Here is more information,
http://arstechnica.com/security/2013/06/device-disabling-fake-av-migrates-to-android-phones-demands-ransom/
http://www.symantec.com/security_response/writeup.jsp?docid=2013-060301-4418-99
http://www.symantec.com/connect/blogs/fakeav-holds-android-phones-ransom
http://video.symantec.com/services/player/bcpid292374537001?bckey=AQ~~,AAAABuIiy9k~,I8BhasVwr9zYL9V36WFi86fR_NoePscn&bctid=2496711760001