Fix duplicate hash key "DefaultOptions"

In modules/exploits/windows/local/pxeexploit.rb.

Author: wvu

modules/exploits/windows/local/pxeexploit.rb

@@ -30,6 +30,8 @@ def initialize
       'DefaultOptions' =>
         {
           'EXITFUNC' => 'thread',
+          'FILENAME' => 'update1',
+          'SERVEONCE' => true # once they reboot; don't infect again - you'll kill them!
         },
       'Payload'        =>
         {
@@ -47,11 +49,7 @@ def initialize
         ],
       'Privileged'     => true,
       'Stance' => Msf::Exploit::Stance::Passive,
-      'DefaultTarget'  => 0,
-      'DefaultOptions' => {
-        'FILENAME' => 'update1',
-        'SERVEONCE' => true # once they reboot; don't infect again - you'll kill them!
-      }
+      'DefaultTarget'  => 0
     )
 
     register_options(