Removal of viruses from the site on Opencart

Interest store and OpenCart platform.It came to note from hosting (investigative): As a result of the hosting account "i'mi site" antivirus check, files that are malicious or infected were found.Often, the presence of such files indicates that the user has access to the site for the purpose of sending spam, carrying out attacks on other sites and placing phishing pages.List of detected malicious files: i'mi site/www/image.php i'mi site/www/admin/image.php Care!Because these files pose a threat to the stability of the service, we are forced to temporarily limit potentially dangerous operations for your account, namely: - to ban outgoing connections to external servers; - to reduce the limit of sending emails without SMTP authorization to 50 letters per day.To remove the restrictions you need to remove from the server all the files with malicious content.- - -
The client’s virus created malicious files, which were hidden throughout the site in different places.. If a part of it is deleted, then the script it checked and again they created..
The problem managed to localize and adjust.. new viral files are no longer created, old viruses are also deleted.There is no complaint from the host.Customer satisfaction.