Vitor Carvalho

This plugin is DEAD until further development. 
Don’t use it as this can lead your WordPress instalation into problems.
With this plugin you can change wp-admin and wp-login.php to any of your choice. 
You can have <code>http://example.org/login</code> instead of <code>http://example.org/wp-login.php</code> or <code>http://example.org/admin/</code> instead of <code>http://example.org/wp-admin/</code>
You just need to enter into <code>options-permalink.php</code>page and set the variables. 
After the setup wp-login.php and wp-admin path are not anymore available and you should use the newest onews you set.
This works with Multisite Networks. You can set a default value in Options page of Multisite settings section.
Languages available: English, Português, Español, Italiano, Deutsch.

Custom Login and Admin URLs (CLAU)

AVOID TO USE THIS PLUGIN! Change wp-admin and wp-login URL to any of your choice. Security by obscurity!

Eric Zeidan

Generate an extra variable to protect and bypass access to wp-admin or wp-login with a simple extra variable that you may set in the admin page.
Major features in secure_uradmin include:
<ul>
<li>You can enable really easy with a on / off button</li>
<li>You can set the name of your Variable</li>
<li>You can set the name of your hash</li>
<li>Your hash will be saved using wp_hash_password 16 round encryption</li>
</ul>
P.D.: After you enable and set the varname & hash you will need to add them to your wp-admin login url; wp-admin?yourvarname=yourhash

Secure Your Admin

Generate an extra variable to secure your wp-admin access thru a simple variable name & hash passed in the URL

Custom Login and Admin URLs (CLAU) vs Secure Your Admin