The Warriors looked to have the match in the bag through 60 minutes of play, before the under-manned Panthers exposed shaky tackling to score with three minutes left, then former Warriors pivot Maloney delivered a field goal killer blow.
Even a stunning second half try by a flying David Fusitu'a - a contender for try of the season - couldn't get the home side the win.
Warriors centre Patrick Herbert kicked a 40 metre penalty goal to send the match into extra time, but that turned the game into the Maloney show, as the Warriors slumped to another loss in Auckland.