User blog comment:Jopjopjop/SlashDog/@comment-73.178.133.185-20150113053847

It's "Night Haken" with the second word being German (I think) for hook. Also, remove the hiragana that appears after the three kanji in the footnote, it appears to be unnecessary from what I see (that is to say, it was something needed for the sentence rather then a part of the attack name).