All ports seem to be opened?

[noct]

Windows 7

uTorrent 3.3 (29625)

ISP: Comcast

Other software: ESET Smart Security 4

Hey there, I have an odd problem with my ports... they all seem to be opened. No matter what port I use during a network test, the results will say that they are forwarded. I went to my router page and made sure no ports were forwarded, yet uTorrent still reports that it's all opened. Upload speeds seem to be running fine as well. I don't know too much about ports, but some how this seems a bit... dangerous?

Any inputs appreciated.

Edit: uncheck "enable UPnP port mapping" under preferences > connection solved the problem.