metasploit-framework/modules/auxiliary/scanner/ftp/ftp_version.rb

##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'msf/core'

class Metasploit3 < Msf::Auxiliary

  include Msf::Exploit::Remote::Ftp
  include Msf::Auxiliary::Scanner
  include Msf::Auxiliary::Report

  def initialize
    super(
      'Name'        => 'FTP Version Scanner',
      'Description' => 'Detect FTP Version.',
      'Author'      => 'hdm',
      'License'     => MSF_LICENSE
    )

    register_options(
      [
        Opt::RPORT(21),
      ], self.class)
  end

  def run_host(target_host)

    begin

    res = connect(true, false)

    if(banner)
      banner_sanitized = Rex::Text.to_hex_ascii(self.banner.to_s)
      print_status("#{rhost}:#{rport} FTP Banner: '#{banner_sanitized}'")
      report_service(:host => rhost, :port => rport, :name => "ftp", :info => banner_sanitized)
    end

    disconnect

    rescue ::Interrupt
      raise $!
    rescue ::Rex::ConnectionError, ::IOError
    end

  end
end