Fix ranking

Author: jvazquez-r7

modules/exploits/multi/vnc/vnc_keyboard_exec.rb

@@ -8,7 +8,7 @@
 
 class Metasploit3 < Msf::Exploit::Remote
 
-  Rank = ExcellentRanking
+  Rank = GreatRanking
   include Msf::Exploit::Remote::Tcp
   include Msf::Exploit::CmdStager
   include Msf::Exploit::Powershell
@@ -26,10 +26,9 @@ def initialize(info = {})
       'Privileged'      => false,
       'License'         => MSF_LICENSE,
       'Platform'       => %w{ win unix },
-      'Arch'            => ARCH_X86,
       'Targets'         =>
         [
-          [ 'VNC Windows / Powershell', { 'Platform' => 'win' } ],
+          [ 'VNC Windows / Powershell', { 'Arch' => ARCH_X86, 'Platform' => 'win' } ],
           [ 'VNC Windows / VBScript CMDStager', { 'Platform' => 'win' } ],
           [ 'VNC Linux / Unix', { 'Arch' => ARCH_CMD, 'Platform' => 'unix' } ]
         ],