Hello - WordPress Security expert here, I have cleaned malware from 15+ websites before, Recovered 5+ hacked WordPress websites.
I can clean malware from your 30 wordpress websites, and get them removed from blacklist of google, yandex and norton.
I'll need the cpanel access, and WordPress admin access. (if you cannot provide wordpress admin login, i am able to log in through cpanel)
Lets get it done quickly
Shaf