Unstupid the prepends callback

Windows#prepends was overriding PrependMigrate#prepends

Author: egypt

lib/msf/core/payload/windows.rb

@@ -12,6 +12,7 @@
 ###
 module Msf::Payload::Windows
 
+	# Provides the #prepends method
 	include Msf::Payload::Windows::PrependMigrate
 
 	#
@@ -26,13 +27,6 @@ module Msf::Payload::Windows
 		}
 
 
-	# @abstract Override to add additional stubs to prepend to the final
-	#   shellcode. Be sure to call super so other modules may add stubs.
-	# @return [String] Stub to place at the begginning of generated shellcode
-	def prepends
-		""
-	end
-
 	def generate(*args)
 		return prepends + super
 	end

lib/msf/core/payload/windows/prependmigrate.rb

@@ -34,8 +34,6 @@ def prepend_migrate?
 	# Overload the generate() call to prefix our stubs
 	#
 	def prepends
-		# Call the real generator to get the payload
-		buf = super
 		pre = ''
 
 		test_arch = [ *(self.arch) ]
@@ -51,7 +49,7 @@ def prepends
 				pre << Metasm::Shellcode.assemble(Metasm::X64.new, migrate_asm).encode_string
 			end
 		end
-		return (pre + buf)
+		return pre
 	end
 
 	#