As you can see from the many ports open at those addresses that this is a modified version of, well, anything. They could be saying it's gnuc but maybe it's not. it was like 2.0.6 or something like that but it could say joesbarandgrill 5.6.5

The point is that it plugs up your connections and you can't search.

For those of you running programs that don't show the connections, this will be hard to figure out. All you will know is for some reason you can't search but yet you seem to be connected to a lot of nodes, or one ultrapeer if that's the way your client developer programmed it.

I just started putting those addresses in my block list and it has pretty much stopped.

So if you have a block list, just add those in and watch your connections for a ultrapeer that just sits there doing nothing.