Hi.

Evaluating to use ClamAV from a CD if possible, without installing.  Is such thing possible ?   How to download-burn a CD and use it perhaps once a month in my Ubuntu Linux machine.

It may not make much sense; but that's always me.  Found not much in the user manual for Clamav.

Antivirus is as good as virus database it has access to. Newly found dangerous threats are found by team of antivirus programmers and added to database on daily basis (in the Windows OS world at least). Antivirus connects to central server and automatically updating local copy of database.

If you will burn CD with antivirus app, you will have to download virus database manually.

https://www.google.com/search?q=clamav+download+database+manually