I had the same problem. I changed the settings of my browser (I use Google Chrome for the record). I changed my homepage into Google.com and changed my default search engine into Google as well. I also deleted every other homepage and every other search engine that was listed in my settings, so that only Google was left.
After that, I deleted Chrome from my computer. I fired up Internet Explorer and installed Chrome again. After that, my homepage problem was gone. As you might see when you fire up Internet Explorer, the delta-homes is probably still there as your homepage, so it only worked at my Chrome browser. And the steps I took were really simple, without having to install any cleaners or something like that, so this solution most likely is a temporary one with the virus/plug-in/(whatever) still on the computer. However, untill you get any answers to remove it for good, this is probably a good solution.
If there's anything about this post that doesn't make sence, please say so. I'm no computer expert either but this is what worked for me (I did it 30 minutes ago and everything is still good,no weird homepage/searching engine).
Edited by MCE, 05 July 2013 - 07:13 AM.