I set up a dummy computer to find vulnerabilities in so I can learn how to understand half the stuff that posted on this site- When I was looking at it, I found ports 139 and 135 open. I know 139 is shared stuff, and I know how to disable that. I searched around about 135, and found the name epmap a lot. It looks like epmap is bad, and everyone is in a big hurry to disable it, but I've never heard of it nor do I know how to disable it myself. If someone could just give me a quick summary, link or a couple keywords to google that would be great.
In short, I dont really need information about exploiting it, I just want to know whats so bad about 135 and what epmap is.