FTP logs or any other logs of file changes?

I had a folder of images that was somehow renamed from “images” to my domain name. This makes no sense at all, and I can’t imagine it was anything I did, even accidentally. I am the only one with access to the FTP account. My best guess is that something screwy happened with DreamHost or possibly my FTP client. I’d really like to get to the cause of the problem so I can be sure it won’t happen again.

Problem is I have no idea how to find the cause. FTP log files might give me the answer, but I’m not seeing any. Any ideas?