Twice this morning the user-agent "KAIST AITrc Crawler" ignored my robots.txt file and tried to access a link which triggers an .htaccess ban on bad bots (and other bad people). But I can find no reference to what this user-agent is.
[edited by: stapel at 3:00 pm (utc) on Jan. 20, 2004]
Not 100% sure, but I believe it's Advanced Information Technology Research Centre at the Korean Advanced Institute of Science and Technology (KAIST AITrc). Involved, among other things, in the development of advanced databases and query mechanisms for applications involving terabytes of infomation (search engines?).