This blog was offline for a few weeks, as well as some other websites of mine, after they all go infected with a PHP hack that inserted into each file code that was disguised in base64. It most likely vectored-in via an unpatched exploit in one of the sites. It all started somewhat small with just two sites, but I wasn’t able to clean it up in time, and it ended up infecting all of my sites.
In the end, I did what I should have done in the first place – turned over the de-cracking to DreamHost’s team. They cleaned out all the evil, and I’ve been busy changing passwords, reinstalling from fresh code, and so forth.