Untitled

RewriteRule ^(.*)/wp-admin(.*)$ - [R=410,L]

http://example.com/wp-administrator/index.php
http://example.com/wp-admin/index.php
http://example.com/wp-admin
http://example.com/wordpress/wp-admin
http://example.com/wordpress/wp-administrator

RewriteRule ^(.*)/wp-admin(.*)$ /pageforhacker.htm [L]

<html>
<head>
<meta name="ROBOTS" content="NOINDEX,NOARCHIVE">
<title>Busted!</title>
</head>
<body>
<h1>Busted!</h1>
<p>Sorry hacker, you lose</p>
</body>
</html>

ONE HACKER BUSTED!