Let me shoot a few scare tactics your way since scare tactics seem to be what compels some people to take fix wordpress malware removal a bit more seriously, or at the very least start thinking about the problem.
Truth is, if your site is targeted by a capable master of this script, there is no way. Everything you are about to read below are some precautionary actions you can take to minimize the risk to an acceptable level. If your WordPress site is protected chances are a hacker hop over to here would prefer choosing another.
There's a section of config-sample.php that's headed"Authentication Unique Keys." There are four definitions which appear within the block. There is a hyperlink within that section of code. You need to enter that link into your browser, copy the contents which you get back, and replace the keys you have with the unique, pseudo-random keys provided by the site. This makes it harder for attackers to automatically create a"logged-in" cookie for your website.
Along with adding a secret key to your wp-config.php file, also consider changing your user password to something that's strong and unique. A good tip is to avoid phrases, use letters, and include amounts, although you will be told the strength of your password by wordPress. It's also a good idea to change your password regularly - say once every six months.
Don't use wp_ as a prefix for your databases. That default is being eliminated by web hosting providers but if yours doesn't, fix wp_ to anything else but that.