The server cannot log in and is under attack. The system is Ubuntu 22 and the CyberPanel version is 2.3.5. What should I do now? Will updating to version 2.3.8 solve the problem?

The server cannot log in and is under attack. The system is Ubuntu 22 and the CyberPanel version is 2.3.5. What should I do now? Will updating to version 2.3.8 solve the problem?

Does CyberPanel have a detailed tutorial to help with this issue? Where can I get it?

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if the files are .locked format, only reinstall OS

Better: Use a Backup and restore your server to statre of last week