BlueHost server with several WordPress website - Malware Cleanup

My BlueHost server hosts about ten WordPress sites and the entire account has been taken offline after a malware attack. I rolled everything back to last month’s backup, but the malicious code was already... (Budget: $10 - $30 USD, Jobs: Content Management System (CMS), cPanel, Database Management, MySQL, PHP, Web Development, Web Hosting, Web Security, Website Management, WordPress)