My question is how got you that code? So i can say maybe you have used it self too? I had time ago same problem and due this shit my server is dead. But did not knew that this a little shit script was.
Is that a script for attack? I searched many weeks on internet and could not find out what it was. So DDOS protection not helping too. I am waiting more than 1 week on a answer from my host how to fix this.
No answer yet.
I think you have to remove that shit here. There are enough crazy people who can use it.