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Windows NetLM Downgrade Attack

This module will change a registry value to enable the sending of LM challenge hashes and then initiate a SMB connection to the SMBHOST datastore. If an SMB server is listening, it will receive the NetLM hashes

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Module Name



  • Brandon McCann "zeknox" <bmccann [at]>
  • Thomas McCarthy "smilingraccoon" <smilingraccoon [at]>




Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use post/windows/gather/netlm_downgrade msf post(netlm_downgrade) > sessions ...sessions... msf post(netlm_downgrade) > set SESSION <session-id> msf post(netlm_downgrade) > show options and set options... msf post(netlm_downgrade) > run