dude...i don't know if that's a mold, but you DEFINITELY have a fungus growing in there. i've seen this before in my beer, and after further research, i've discovered it was the Saccharomyces fungus.
not much you can do about it now. i would let it sit for a couple more weeks and the bottle/keg.
i'm sorry to hear that your first secondary brewing attempts was infected with Saccharomyces. best of luck to you in the future.