User-agent: *
User-agent: sitecheck.internetseer.com
Disallow: /cgi-bin/ 
RewriteEngine On 
[list of bad bots] 
RewriteCond %{HTTP_USER_AGENT} sitecheck\.internetseer\.com [NC,OR] 
[more bad bots] 
RewriteRule!^403.html$ - [F,L] 
Disallow: /_borders/
Disallow: /_derived/
Disallow: /_fpclass/
Disallow: /_overlay/
Disallow: /_private/
Disallow: /_themes/
Disallow: /_vti_bin/
Disallow: /_vti_cnf/
Disallow: /_vti_log/
Disallow: /_vti_map/
Disallow: /_vti_pvt/
Disallow: /_vti_txt/
Disallow: /images/