I back up my blogs regularly using a free plugin WP DB Backup. I will always restore my website if anything happens. I use WP Security Scan plugin that is free to scan my site regularly and WordPress Firewall to block asks that are suspicious-looking to fix malware problem.
Truth is, if your own site is targeted by a master of the script, there is no way. What you are about to read below are a few precautionary measures you can take to quickly minimize the threat. Odds are a hacker would prefer choosing more easy victim, another if your WordPress site is protected.
First in line is currently creating a smarter password for your account. Passwords must be made with numbers and special characters. You create plus shifted letters click this link and can combine them. Smarter passwords can be your gateway to zero hackers. Make difficult passwords that only you can think of.
Note that this step for setups should only try. If you would like to do it you'll also have to change the table names within the database.
Do your homework and some hunting, but if you are pressed for time and need to get this try out the WordPress security plugin that I use. It's a relief to know that my website (and business!) are secure.