Install the how to fix hacked wordpress site Firewall Plugin. This plugin investigates net requests with WordPress-particular heuristics that are simple to identify and stop most obvious attacks.
There are numerous ways to pull this off, and many of them involve copying and FTPing files, exporting and re-establishing more and databases. Some of them are very complex, so it is important that you go for the one that is best. If you're not of the persuasion that is technical, then you may want to look into using a plugin for WordPress backups.
You also need to set the"Anyone Can Register" in Settings/General to off, and you ought to have some sort of spam plugin. Akismet is the old standby, the one I use, but there are many of them these days.
Install the WordPress Firewall Plugin. Prevent and this plugin investigates web requests with WordPress-specific heuristics that are simple to identify obvious attacks.
But realize that security is. Do not only be the type, consider steps to start protecting yourself. Do Extra resources not let Joe the Hacker make your life miserable and turn all in creating come crashing down in a matter of seconds, that you've worked hard.