http://www.southperry.net/showthread.php?t=58103
There's a packet editor that lets people simulate an Empress attack that turns people into bombs that kill other players.
I'd stay away from public areas for a while until it gets patched, some people are losing EXP from it (though others report that they don't). The hack is apparently also public, which means every script kiddie in the world is jerking off with it.
Does 15k damage from what I've heard.