From what I understand, the dev team is working on additional preventive measures, aiming for a more permanent solution to this type of attack. This experience should also highlight the importance of a healthy (read: strong/fast) Monero mining network. An open source AMD miner is perhaps one important measure in this regard.
Reminder: There's still an open bounty to this effect, and Wolf0 has generously posted some partial code towards this goal, so someone taking up the task, will not need to start from scratch.
https://bitcointalksearch.org/topic/bounty-for-open-sourced-xmrcryptonight-gpu-miner-bounties-thread-656841
PS: Please edit/remove text when quoting the troll(s), as this partly defeats the ignore function. Better options are:
Edit: Credits due to the community members who came up with these creative responses. Thank you!