40 years? Check your history a bit.....
Also, how would that system work, exactly? 1 million infected machines from all over the world, from hundreds, if not thousands, of networks, suddenly opening a few connections a minute and sending a relatively small amount of traffic at a target host looks just like normal traffic, unless you are on the receiving end and run out of bandwidth HARD.
(but yeah, in the end, some kind of automated alert system and cooperation between ISPs will probably be needed to combat this type of thing if nothing else changes... if only to cut down on the manpower needed right now to track it down. eg: let someone punch in an attack signature and find all requesting hosts globally, then request that they be blocked at their component ISPs, subject to the approval of those ISps, etc.... something like that.