Today I noticed that the Yandex bot was on a rampage through my site, in-fact I had over 3500 hits on my site from this bot alone, and that’s only between the hours of 00:00 to 09:30.
So I tried the usual robots.txt disallow trick and that didn’t seem to stem it’s mayhem. Then as I was searching for a cure from this manic bot I came across quite a number of webmasters with the exact same issue.