Issue with possibly compromised files after hack attack

Hi All

Scanning my public HTML folder after failed hack attack result in files reported as suspicious.
Specifically these 3 files

plugins/types/library/toolset/types/embedded/classes/path.php

– Regular expression match = [symlink\s*\(]

plugins/types/library/toolset/types/resources/js/codemirror234/mode/clike/index.html

– Suspicious file type [application/x-c]

plugins/types/library/twig/twig/ext/twig/twig.c

– Suspicious file type [application/x-c]

How I can check if these files are compromised or its a false positive report?
Thanks in advance for your help!

https://ww.wp.xz.cn/plugins/types/