I don't have the ability to do server configuration on my site. I found I can filter out suspicious IP ranges in web.config with:
<add ipAddress="126.96.36.199" subnetMask="255.255.0.0" /> <!--China-->
This has taken care of a lot of the issues with hacking attempts but I'm having an issue with the same IP address opening up dozens of simultaneous connections. So far I have found no way to limit this. Any help would be appreciated.