This station has been heard on twenty meters with a real good signal, 14.183 up ten for ssb contacts. There have been a couple of spots for this operation on 40, but it appears we have a pirate for that band. It seems with every operation we have our class of idiots who wish to ruin a good thing for serious minded DX ops.
According to the web site for 9U4U they do not have antennas up yet for 40 meters, but in time maybe they will. Take your chances on the lower bands, only one way to find out for sure and that is work them, request a card, if you are not in the log you worked the pirate.
Good luck on catching this one, if may be some time before any further operations take place.