This module exploits a denial of service flaw in the Microsoft Windows SMB service on versions of Windows prior to the August 2010 Patch Tuesday. To trigger this bug, you must be able to access a share with at least read privileges. That generally means you will need authentication. However, if a system has a guest accessible share, you can trigger it without any authentication.
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
Time is precious, so I don’t want to do something manually that I can automate. Leveraging the Metasploit Framework when automating any task keeps us from having to re-create the wheel as we can use the existing libraries and focus our efforts where it matters.
– Jim O’Gorman | President, Offensive Security