Can anyone tell me what this is?

One of my sites has been has been suspended by iPage because they say:

"We have found one or more scripts/applications hosted on your hosting account to be using a large amount of server resources. The following script/application has been disabled in order to protect server stability.

Refer: https://newfoldbin.corp.endurance.com/?475346308d6f7cb8#EoiQFDGLceZLmm7YFRybzrYx7QAUaWhn5q8mYrtx2zE6

Please review your scripts/applications to ensure you are using the latest versions and let us know when you’ve done so”

The only trouble is that I have absolutely no idea what this could be, or even where I start looking. I would really appreciate some help please?