Amazon AWS: ClamAV

My web application needs to virus-check uploaded files. So I need to install ClamAV, schedule updates, and test virus scanning from PHP scripts.

sudo apt-get install clamav clamav-daemon clamav-freshclam

So that’s clamav installed. Next up – test it from the command line.

sudo clamscan test.pdf

That works, although it’s suspiciously slow.

Next – test from a PHP script:

1. Copy test.pdf into Apache’s DocumentRoot directory
2. Write a PHP script there, called scan.php
3. Must contain a (call to a) function virus_scan()…

    function virus_scan($path)
    {
        $command = 'clamscan ' . escapeshellarg($path);
        $out = '';
        $int = -1;

        exec($command, $out, $int);

        return $int == 0;
    }

Hooray.