http://www.gregfreeman.org/2013/how-to-tell-if-your-php-site-has-been-compromised/
https://my.bluehost.com/cgi/help/511
http://www.alpineweb.com/backroom/knowledgebase/59/Blackhole-Exploit-Kit-Wordpress.html
https://blogs.sophos.com/2015/07/21/a-closer-look-at-the-angler-exploit-kit/
https://premium.wpmudev.org/forums/topic/how-to-fix-blackhole-exploit-virus