Canada doesn't allow reversed engineering except for 'research purposes' and a few other not very common applications, so don't really need to analyze anything beyond eA to say any pserver is already illegal.
And this thread isn't talking about legality issues... as mentioned many times already, we've already contacted the attacker's ISP. They just didn't reply with anything at all, and that's really all you can do.
Most of you already know from first announcement, server is back up again for now, but stability is not necessarily guaranteed. Hopefully everything goes smoothly for heRO tomorrow with the hoster to install whatever needs installing.