lanshanbot/1.0 ( http://search.msn.com/msnbot.htm)

This one looks familiar

[GaryK]

lanshanbot/1.0 ( [search.msn.com...]
202.96.51.172
netname: MICROSOFT-CO
descr: Microsft (China) Co.Ltd

The URL in the user agent redirects to: [search.msn.com...]

I thought we discussed this one before, but a search turned up two threads that don't seem to exist anymore. It read robots.txt so many times, so quickly that it got itself banned before it was able to do anything else. :)

[volatilegx]

I've also seen this one coming from 202.96.51.152

[Pfui]

Here's some info about its mother-ship, "Easten Network Co." of Beijing, China. (Found the URL in my notes; am starting to save my posts so I can find the data again...)

bot/1.0
[webmasterworld.com...]

Definitely 403-worthy, imho.