adb64 - 12:18 am on Mar 16, 2006 (gmt 0)
Saw this one a few times back in February, but the past few days it is spidering my site heavily. It now uses some weird random UA names like "pynbjmxjcStcooccwSyd", "srhpdbdsgqsygi7ctsxpmwpdhqhmgwkfieeiwsy" or "dohdegijvi3GyxnirfqGfcwjvgodgghex3jict" and many more.
I just blocked the IP range 205.234.253.*, that are the only ones I've seen. The other IP ranges mentioned before I haven't seen.