Hmm I see it does go to China but there seems no hostname details available for that IP just this CNCGROUP Heilongjiang province network.
Perhaps its some Chinese youths looking for open doors on your machine, its often simple for folks to learn of an exploit that uses a certain port and scan the internet for folks on that port and then try to obtain access, of course as you can select random ports for many apps its not the best method to try to obtain access but it seems if it wasnt a reliable method they would stop using it, anyway nothing to be upset about as its obviously not being allowed to connect or breaching your firewall., if you do not have a firewall on/installed this is one of the reasons to obtain one.
I had a look over the BISS forums and they have switched off their search site function except to members and nothing would make me want to join those jokers so sorry I cant help with locating the real reason its there.