Budget: 500 UAH Deadline: 3 days
Remove the malicious code. How do you check the files? It’s not like the AI-BOLIT scanner (designed to check the site for viruses, hack).
Without prior preparation, the server cannot find where the files are infected. I can offer the update of the Joomla engine and plugins to the latest version, the exhibition of access rights, the password change to avoid reinfection.
It should help from repeated infection if it’s not viruses on the devices of employees who have access to the site.
One day is enough for removal. It may take more time to find reasons.