A new robot crawled my site on 2nd Jan. I know because it crawled my download script, which is prohibited by my robots.txt. The download log that was emailed to me showed the following info.
IP Address: 216.179.125.69
Host: tubgirl.biz
User-agent: WebVulnCrawl.blogspot.com/1.0 libwww-perl/5.803
Date: 2006-01-02 19:24:23
My interest piqued, I followed the trail. It's a project run by Dennis Brown; his first post explains it best.