But Linux is just kennel we need to look at all the gnu components that make Linux a complete os… Wait maybe not https://drewdevault.com/2023/11/25/2023-11-26-RMS-on-sex.html

Clamav is ok to use for scanning files for malware. If you want something to detect behavior you can use Falco or tetragon to log events on your system. Those systems are best used if you send them to centralized log system but that’s complete overkill for personal use