I got a warning from my web host that because of some malicious script running in my wordpress blog more than 50% of their CPU resources are used. They have suspended my account. Has any one of you faced similar issue. Please help me if you know the solution.
sounds like you may have an iframer virus, which would have embedded itself in all your index.php files, if you do a view source you will see a iframe either in the header or footer, backup your whole site (ie export your posts and pages), note down all your plugins and have a copy of your theme, ftp whole site back to your pc delete everything and re-up. when re-upping your virus software should detect the faulty files. once identify do clean install of WP and fix all files identified as having a virus
1. Upgrade to the latest version 2. Change all passwords to stronger passwords (alphabets with numbers, uppercase and lowercase, symbols, etc) 3. If your site was attacked by malicious iframe, take a look at this post : How To Completely Remove All Malicious Iframes on Your Website Forever Cheers.
I keep mine updated to the latest version, i dont go overboard with plugins and i dont give the login details to anyone.
Make sure your folders are all CHMODded properly, too. Wordpress's official site has instructions about this.
if it is a iframe virus then make sure you cleanup the virus from your harddrive and also do not store your ftp user, passwords on your browsers, ftp programs, etc. as the virus may extract the details from your browser, ftp program, etc and will automatically connect to your server and inject the code again and again. if it is not a iframe then ask your host to provide you more details.