How to install ClamAV¶

Installing ClamAV on Ubuntu:

Step 1: Update Package List

sudo apt update

Step 2: Install ClamAV

sudo apt install clamav

Step 3: Install ClamAV Daemon (freshclam)

sudo apt install clamav-daemon

Step 4: Start ClamAV Daemon (freshclam)

sudo systemctl start clamav-freshclam
sudo systemctl enable clamav-freshclam

Step 5: Start ClamAV Service (clamd)

sudo systemctl start clamav-daemon
sudo systemctl enable clamav-daemon

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1. Check if freshclam is already running:

ps aux | grep freshclam

If a freshclam process is already running, you'll see an output similar to this. Ensure that freshclam is running as expected and updating the ClamAV database regularly.

$ ps aux | grep freshclam
clamav 12345 3.0 0.0 134420 18216 ? Ss 09:30 0:03 /usr/bin/freshclam -d --foreground=true
user 54321 0.0 0.0 22856 1100 pts/0 S+ 10:15 0:00 grep --color=auto freshclam

If there is no freshclam process running, you can proceed with updating the ClamAV database:

sudo freshclam

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Reconfigure clamav-freshclam:

Run the following command to reconfigure clamav-freshclam, which will create a new freshclam.conf file in the /etc/clamav/ folder:

sudo dpkg-reconfigure clamav-freshclam