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NetBIOS/SMB (139/445)

NetBIOS and Server Message Block

Description
NetBIOS
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SMB
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Interaction
Connection Methods
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Anonymous Authentication
Depending on the configuration, sometimes you can connect to an SMB server as anonymous (-N)and leave the password blank.
# Failed anonymous authentication
└─$ smbclient -N //10.129.218.255/Files
tree connect failed: NT_STATUS_ACCESS_DENIED
# Allowed anonymous authentication
└─$ smbclient -N //10.129.218.255/general
Try "help" to get a list of possible commands.
smb: \> ls
  .                                   D        0  Wed Jan 16 15:10:51 2019
  ..                                  D        0  Tue Sep 13 10:56:24 2022
  creds.txt                           N       57  Tue Oct  9 19:52:42 2018
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                3545824 blocks of size 1024. 1650916 blocks available
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Connect and List Shares
# As anonymous
└─$ smbclient -N -L //targetIP
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Enumerate Users
Enumerates SMB to find valid usernames. It requires Impacket to be installed.
└─$ ./samrdump.py 10.129.203.6

FTP (21)

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Last modified 8mo ago