In my last blog post, I discussed how you can use CloudFlare to prevent bad bots from getting to your site. But, what happens if the bad traffic still remembers your old IP number for the original web server and the bots still get through.
Recently we had one of our Managed Hosting customers experience this very problem. We helped find a solution to this issue.
We posted this content over on our DiscountASP.NET Blog but we port it over here because we want all our customers to know about a recent rise of hacking activities associated with the Telerik Web UI Control. If you are using Sitefinity, DotNetNuke or have a custom application that uses Telerik controls, please read on.