SMB

Server Message Block is a client-server communication protocol used for sharing access to files, printers, serial ports and other resources on a network

SMBClient

$ smbclient //[IP]/[SHARE]
 
Followed by the tags:
-U [name] : to specify the user
-p [port] : to specify the port

SMBMap

$ smbmap -H 10.10.206.28 
 
    ________  ___      ___  _______   ___      ___       __         _______
   /"       )|"  \    /"  ||   _  "\ |"  \    /"  |     /""\       |   __ "\
  (:   \___/  \   \  //   |(. |_)  :) \   \  //   |    /    \      (. |__) :)
   \___  \    /\  \/.    ||:     \/   /\   \/.    |   /' /\  \     |:  ____/
    __/  \   |: \.        |(|  _  \  |: \.        |  //  __'  \    (|  /
   /" \   :) |.  \    /:  ||: |_)  :)|.  \    /:  | /   /  \   \  /|__/ \
  (_______/  |___|\__/|___|(_______/ |___|\__/|___|(___/    \___)(_______)
 -----------------------------------------------------------------------------
     SMBMap - Samba Share Enumerator | Shawn Evans - ShawnDEvans@gmail.com
                     https://github.com/ShawnDEvans/smbmap
 
[*] Detected 1 hosts serving SMB
[*] Established 1 SMB session(s)                                
                                                                                                    
[+] IP: 10.10.206.28:445        Name: 10.10.206.28              Status: Authenticated
        Disk                                                    Permissions     Comment
        ----                                                    -----------     -------
        print$                                                  NO ACCESS       Printer Drivers
        pics                                                    READ ONLY       My SMB Share Directory for Pics
        IPC$                                                    NO ACCESS       IPC Service (anonymous server (Samba, Ubuntu))

Enum4linux is a tool used to enumerate SMB shares on both Windows and Linux systems. It is basically a wrapper around the tools in the Samba package and makes it easy to quickly extract information from the target pertaining to SMB

$ enum4linux [options] ip
 
TAG            FUNCTION
-U             get userlist
-M             get machine list
-N             get namelist dump (different from -U and-M)
-S             get sharelist
-P             get password policy information
-G             get group and member list
-a             all of the above (full basic enumeration)

Using Nmap

$ nmap -p 445 --script=smb-enum-shares.nse,smb-enum-users.nse 10.10.176.62

SMB

SMBClient

SMBMap

Enum4Linux

Using Nmap

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