Gravityscan has just been announced. It is a free malwarere and vulnerability realtime scanner for your website whether it uses WordPress, Joomla or some other CMS or whether it is created in standard html.
Gravityscan is produced by the team behind Wordfence which is one of the most popular security solutions for WordPress. It tells you if your site has been hacked, whether any malicious backdoor code has been put on your site and above all it is free. There are more options in the premium version but having tried it on numerous of my websites it is not very likely that you will more than the basic features.
If you want to keep information about your scans then its best to register. There are several ways for them to check that you are the real owner and not a hacker from using your existing Google analytics data to inserting a Gravityscan piece of code on your server. One neat trick is that you can sign in using your Google details so that’s one less password to remember and it shows the team understand the website creating community better than some.
Try it out. I have, and you won’t be disappointed.