How to upload shell in Wordpress

Believe it or not, some newbie are not known to upload shell even he can access admin username and password. Here is my noob tip for them. First all, you login to wp web site and you are in wp dashboard.

In Dashboard, you need to go Appearance>Theme>Editor. And you can see as above picture. And just click 404 Template  (404.php)

 After clicking 404 template, you will see html code there, just remove all and replace your own shell code here.

After paste your shell code, you need to update to save setting just below. Remember we are editing Template name Striking. Ok just put in mind that.

Now it is time to call your shell url path. Just like www.target.com/wp-content/themes/striking/404.php
You may different template name depending on the site you hacked. Just see template name. OK