Hammered by .RU — Should I Be Concerned?

I have a test site up with a few negligible posts until I get everything squared away.

So far, the only real traffic is from the spiders, but I’m getting hammered by 95.27.97.46 which tracks back to Moscow and can’t really have an obsessive interest in my cat picture, which it keeps hitting.

Any thoughts on this? Should I be concerned? Is there something I should do? I have comments and members turned off, with Bad Behavior installed.

Thanks for any insight or suggestions. I’m new to this!