Our website keeps getting hacked and someone keeps injecting eval base64 code into all php files. We are running the latest version of vbulletin and wordpress. Turning off eval code can not be done as one of our sites on the server uses the code. This also would not solve the problem of how they are getting in.
We are looking for someone to go through the server and find out how they are getting in and come up with a solution to patch this.
Please make the first thing in your response the answer to"What is 5+2?"