Fix UltraISO file creation

This makes file creation where datastore['FILENAME'] is not used when
a different filename is required, and ends up creating files in the
wrong place.

lib/msf/core/exploit/fileformat.rb

@@ -30,8 +30,8 @@ module Exploit::FILEFORMAT
 		datastore['FILENAME']
 	end
 
-	def file_create(data)
-		fname = file_format_filename
+	def file_create(data, filename = nil)
+		fname = filename || file_format_filename
 		ltype = "exploit.fileformat.#{self.shortname}"
 		full_path = store_local(ltype, nil, data, fname)
 		print_good "#{fname} stored at #{full_path}"

modules/exploits/windows/fileformat/ultraiso_ccd.rb

@@ -206,18 +206,7 @@ class Metasploit3 < Msf::Exploit::Remote
 		sploit << idx_line
 
 		file_create(sploit)
-
-		# This extends the current class, and changes the file_format_name.
-		# This allows us to use the file_create(data) to store the created 
-		# file in the correct directory.
-
-		class << self
-			def file_format_filename
-				datastore['FILENAME'].gsub(/\.ccd$/, '.img')
-			end
-		end
-
-		file_create('')
+		file_create('', datastore['FILENAME'].gsub(/\.ccd$/, '.img'))
 	end
 
 end

modules/exploits/windows/fileformat/ultraiso_cue.rb

@@ -111,18 +111,9 @@ class Metasploit3 < Msf::Exploit::Remote
 
 		print_status("Creating '#{datastore['FILENAME']}' using target '#{target.name}' ...")
 		file_create(cue_data)
+		file_create('', datastore['FILENAME'].gsub(/\.cue$/, '.bin'))
 
-		# This extends the current class, and changes the file_format_name.
-		# This allows us to use the file_create(data) to store the created 
-		# file in the correct directory.
 
-		class << self
-			def file_format_filename
-				datastore['FILENAME'].gsub(/\.cue$/, '.bin')
-			end
-		end
-
-		file_create('')
 	end
 
 end