Use the rubyntlm gem

[egypt]

This changeset replaces our old vendored and modified NTLM implementation with https://github.com/WinRb/rubyntlm

Verification

• Start msfconsole
• use auxiliary/scanner/smb/smb_login
  • Verify works with local accounts
  • Verify works with AD accounts
  • Verify works against a Domain Controller (important because of mandatory signing)
  • Verify bad creds don't give a false positive
• use auxiliary/scanner/mssql/mssql_login
  • Check MSSQL authentication
    • Verify works with MSSQL accounts (e.g. sa)
  • Check Windows authentication
    • set DOMAIN to the hostname (not fqdn) of the target system. For some reason . and WORKSTATION both fail, but this is existing behavior before these changes.
    • Verify works with local Windows accounts
    • Verify works with AD accounts
    • Verify bad creds don't give a false positive
• use auxiliary/scanner/mssql/mssql_hashdump (this is important because it's different code from the login scanner)
  • Check MSSQL authentication
    • Verify works with MSSQL accounts (e.g. sa)
  • Check Windows authentication
    • set DOMAIN to the hostname (not fqdn) of the target system. For some reason . and WORKSTATION both fail, but this is existing behavior before these changes.
    • Verify works with local Windows accounts
    • Verify works with AD accounts
    • Verify bad creds don't give a false positive
• use auxiliary/scanner/http/http_login
  • NTLM and Negotiate are the same code, so either one will work