Hi there,
I have worked on several opencart projects and would be happy to help you with your website maintenance and updates on an ongoing basis as needed.
For the current malware issue, can you please share the URL of your website, I can run a scan to see the corrupt files and provide you an estimate for the fix accordingly.
After I run the scan and fix current issue I can also offer you advise on how we can make website more secure, so that such issues don't occur again.
Looking forward to your reply.
Best regards,
Priyanka
PS: I'm new here so you may not see much on my profile, rest assured I am experienced and you can pay me after the work is done to your satisfaction