ClamAv results query

[bernard stafford]

This is the documentation for Clam AV Manual    https://www.clamav.net/documents/clam-an...ser-manual 
According to Ask Ubuntu it is a good idea to have Clam TK,with Clam AV.
This gives you a GUI interface to scan with. 
What you may be seeing could be that Clam AV not being able to access Root Files. [log in as Root] 
I will refer you to the Documentation Manual. 
The other explanation:
Clam AV can read these directories, but they contain "files" that aren't really data or executable.
Everything in /dev/ represents a piece of hardware.
/proc/ contains files that represent running processes.
/sys/ contains real-time system info/settings. So when Clam scan tries to scan these it probably gets confused.