I upgraded to 3.3.1, and soon after, was hacked.
I realized that after the update, I needed to set my files to read only. I now see files in the wp-includes folder also hacked, this code added.
My site is currently visible, and links into it work, but - When I googled myself (joetaxpayer) the google results were as expected, but the links though looking correct in firefox, led elsewhere. I asked google to un-search me, but the same issue is with Bing. A search on Joetaxpayer shows my site but links head elsewhere.
Any more details on this? How to track what needs fixing?