Need help with Contabo VPS Issues

Need help with the following for Contabo VPS -

Preserve any needed data. If you do not have a backup listed in your Customer Control Panel, boot into the Rescue System to copy off any still-accessible files: https://help.contabo.com/en/support/solutions/articles/103000295053-how-do-i-boot-a-rescue-system-. Treat extracted files as potentially tampered with and review them carefully before reuse.
Reinstall the server from scratch via your Customer Control Panel to a clean OS image. This is the only reliable way to remove backdoors left by the attacker.
If (and only if) you hold a clean backup in the Customer Control Panel and choose to restore it, you must immediately log in via SSH and run /scripts/upcp --force to apply the security patch - otherwise the server will be re-infected within minutes.
Apply the patch on the clean installation following the recommended procedure:
Update cPanel & WHM to the latest available version.
Fully update all OS packages.
Verify that WHM is running one of the recommended versions, as per the article below.
Support article for reference: https://support.cpanel.net/hc/en-us/articles/40073787579671-Security-CVE-2026-41940-cPanel-WHM-WP2-Security-Update-04-28-2026
Change all credentials (WHM/cPanel accounts, SSH keys, API tokens, database users, email accounts) once the clean system is patched.