Not much you can do here. Virtualy everyone in Pokerstars folds at the slightest sign of strength in this situation. As others have mentioned, all you can do is slowplay in behind them and hope somebody hits their cards on the backend and gets brave. Even then, most will only minimum bet at you anyway.

As an aside, I played a live game once where a guy hit just like this, only to see AA drop on tunr/river for an oponent holding AA. It was nuts.