Sinister

Ok this might seem a little dumb to ask but currently I am running a site that after X number of clicks it is redirecting to porn sites, I think it has something to do with my server but I am not too sure...I know that when I upload a page the server adds sextracker to the bottom...could that be the cause of the problem? and if so is there any way to stop the code from being added once I upload my page?