This is getting old…
Yeah, the site’s been down more than a few times lately.
Every time I thought I’d cleaned up the site, it turned out I’d missed something. At one point new injection points were being created faster than I could remove them. I finally had to halt the webserver, delete everything that wasn’t content or configuration related and re-upload the wordpress files from a clean copy.
Ah well, at least I now have a good idea of what to watch for now and how to deal with it.