new bsod for vista sp1/sp2 and win7 kinda like the old winuke exploit from windows95
we did it in perl and asm
http://illmob.org/files/smb2nuke.pl
http://illmob.org/files/smb2nuke.exe
more info here : http://seclists.org/fulldisclosure/2009/Sep/0039.html