Everyone has gone crazy about the latest bug that allows 3rd parties to execute USSD code on specific android phones (my Sensation is vulnerable too). j4n87, senior and very active member of XDA has already submitted a patch in this article. Although the vulnerability was disclosed quite quickly and I don’t think there are lot’s of sites hosting this malware, I do recommend patching your android dialer. It’s just better to be safe than sorry. I’m curious, though, how long will it take to see official patches?