Installation Steps of virus scan any file with ClamAV

Posted on by Sourabh Jain

ClamAV® is an open source (GPL) anti-virus engine used in a variety of situations including email scanning, web scanning, and end point security. It provides a number of utilities including a flexible and scalable multi-threaded daemon, a command line scanner and an advanced tool for automatic database updates.

Install ClamAV on Ubuntu 18.04

sudo apt install clamav clamav-daemon -y

Permission to Directories where log save (For Eg. in my case)

sudo chmod 777 /var/log/clamav/
sudo chmod 777 /var/lib/clamav/

Update the ClamAV Singature Database

systemctl stop clamav-freshclam

freshclam

sudo systemctl start clamav-freshclam

While downloading ClamAV Signature if facing timeout issue then modify below configuration

sudo gedit /etc/clamav/freshclam.conf

Change below parameters in configuration file

ConnectTimeout 30
ReceiveTimeout 30
To
ConnectTimeout 9999sudo apt install clamav clamav-daemon -y
ReceiveTimeout 9999

Clamscan command execution

clamscan --help

In PHP you can write simple script to execute clamscan as below

<?php
exec('clamscan [/path-to-file/file-name.ext]', $output, $result);

if($result == 1){
    // Virus Infected
}else{
    // Virus not found
}
?>