ssh (certain version) appears to volunteer rather much, before getting down & crypty.
via nixCraft (on facecrack) ** https://www.facebook.com/nixcraft/posts/1217637954916247
Fix: http://www.cyberciti.biz/faq/howto-openssh-client-security-update-cve-0216-0...
** Image attached - termscrot of ssh attempt on a fake nastynode, via nixCraft: ssh_Caution_nixCraft.png