Secure WordPress Cleanup

I need a professional to clean a virus from my WordPress website, re-upload it, and secure it afterward.

Requirements:
- Backup the website before cleaning
- Clean the virus and re-upload
- Install a security plugin
- Restrict file permissions

Ideal skills and experience:
- Expertise in WordPress security
- Experience with virus removal
- Familiarity with security plugins and file permissions

Please ensure the site is secure and functioning properly.