While the submitter is correct that they have much more competition now, I still wish to congratulate the former L0pht guys on the new release!
nmap -PN -T4 -p139,445 -n -v --script=smb-check-vulns --script-args safe=1 [targetnetworks]
For more details, see the announcement at http://insecure.org.
Never put off till run-time what you can do at compile-time. -- D. Gries