I did download ClamAv datebase and I want to offline update the signature database, as far as I surfed I could not find a solution and also in ClamTK, ClamAVs GUI there is no option for the offline update, I am using the latest update of Ubuntu.
Thank you in advance for helping me.
Download the file definitions from the ClamAV site:
The two files are required
Copy these files into the ClamAV directory:
This will overwrite the old definition files