It is not a tragedy when you see Ads by Miss Sunshine. However, this is not a good sign for your system either. This means that some way or another your PC got infected with a serious adware. And now your browser spews out the bunch of intrusive ads marked as brought by Miss Sunshine, powered by Miss Sunshine, optimized by Miss Sunshine, etc. In addition, you will also notice the huge number of intrusive pop-ups leading you to all sorts of unsafe places in the world wide web through causing browser redirection issues.