Installation

• Navigate to the directory: cd /var/cache/apt/archives/
• Download the .deb package from the official website.
• Install the package: sudo apt install ./clamav-0.105.1.linux.x86_64.deb
• Change the owner of the directory: chown 492:491 /usr/local/share/clamav/
• Copy the configuration files:
  • cp /usr/local/etc/freshclam.conf.sample /usr/local/etc/freshclam.conf
  • cp /usr/local/etc/clamd.conf.sample /usr/local/etc/clamd.conf
• Remove the line #Example from both files.

Launch

After starting clamd, wait for it to load.

• Scan the entire disk: clamdscan /
• Remove infected files: clamscan --recursive --infected --remove /
• Move infected files: clamscan --recursive --infected --move /home/user/temp
• Exclude system directories: clamscan --recursive --infected --move /home/user/temp --exclude-dir=^/sys --exclude-dir=^/dev --exclude-dir=^/proc

Update

1. Stop the process: sudo /etc/init.d/clamav-freshclam stop
2. Start the update: sudo freshclam
3. Restart the process: sudo /etc/init.d/clamav-freshclam start

Proxy settings can be specified in the configuration file freshclam.conf:

Errors

• Error: Permission denied — use:

  cd /var/cache/apt/archives/
  wget .deb from here https://www.clamav.net/downloads
  sudo apt install ./clamav-0.105.1.linux.x86_64.deb

• Error: Can't open/parse the config file /usr/local/etc/freshclam.conf — check the configuration files:
• cp /usr/local/etc/freshclam.conf.sample /usr/local/etc/freshclam.conf
• cp /usr/local/etc/clamd.conf.sample /usr/local/etc/clamd.conf
• Remove the line #Example in each file.
• Error: Blocked by CDN — access is blocked from your country.