By default, the latest version of WordPress is pretty secure. Anything which may have been added to any fix wordpress malware cleanup plugins has been considered by the development team of WordPress . In the past , WordPress did have holes but most of them are filled up.
I protect an access to important files on the site's server by placing an index.html file in the particular directory, that hides the files from public go view.
Keeping your WordPress site up-to-date is one of the easiest things you can do. For the last few versions, visit their website the ability to install updates has been included by WordPress. Not only that, but sites are notified every time a new upgrade becomes available.
Whitelists pathological-looking phrases and black based on which area they appear inside. (unknown/numeric parameters vs. known post bodies, remark bodies, etc.).
Change admin username and your WordPress click resources password, or your password and collect and utilize other WordPress security tips to keep hackers out!