I've actually dug pretty deeply into it. Briefly, it's IBM BigFix (previously Tivoli Endpoint) and allows university IT to remotely run any script with administrator privileges on your machine. I hate it and remove it after registration. It's one thing to use that on company/university-owned computers. I think it's unacceptable to run it on personally owned machines like Stanford does. Students who live on campus have no alternative ISP.