chkrootkit question. suspect files

I recently had a spear fishing attempt on my Linux Ubuntu 18.04 I changed passwords and ran Chkrootkit and Clamscan

my chkrootkit scan came up with the following:

suspicious files and directories were found:  
/usr/lib/debug/.build-id /usr/lib/python2.7/dist-packages/PyQt5/uic/widget-plugins/.noinit /usr/lib/python3/dist-packages/PyQt5/uic/widget-plugins/.noinit /usr/lib/jvm/.java-1.11.0-openjdk-amd64.jinfo /lib/modules/4.15.0-115-generic/vdso/.build-id /lib/modules/4.15.0-112-generic/vdso/.build-id
/usr/lib/debug/.build-id /lib/modules/4.15.0-115-generic/vdso/.build-id /lib/modules/4.15.0-112-generic/vdso/.build-id 

Is there a way to test if these are false positives? I update my software regularly.

Thanks in advance!