Malware on my WordPress| Laravel | and Moodle websites

Hello, folks

Currently, I am facing a malware issue on 5 of my websites which are WordPress, Laravel, and Moodle. All of my websites are hosted in Namecheap hosting provider and all are infected by malware. The malware which is attacked on my website is a Japanese keyword attack (which is affecting my SEO ranking and also consuming my disk space on the server)

What I want now is to remove the malware from the website as well as from the server level. I also need reports of the website removing errors Also, close all the lope holes from where the error originated and give our team training on how we can protect the server from this kind of attack.

I am going to attach some screenshots of the infected files with you guys Also, the Japanese attack malware.