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clamav-daily

ClamAV is an open source (GPL) antivirus engine designed for detecting Trojans, viruses, malware and other malicious threats.

Rkhunter (Rootkit Hunter) is a Unix-based tool that scans for rootkits, backdoors and possible local exploits.

The script scans pre-defined system locations depending on the day of the week and sends an email notification with a ClamAV or rkhunter log attached if any malware has been found.

Installation on Debian/Ubuntu

The following packages are used by the script:

  • ClamAV
  • bsd-mailx
  • Rkhunter

To install:

$ sudo apt-get install clamav clamav-freshclam bsd-mailx rkhunter git
$ git clone https://github.com/lisenet/clamav-daily.git
$ chmod u+x ./clamav-daily/*.sh
$ sudo ./clamav-daily/clamav-rkhunter-scan.sh

Installation on CentOS/Rocky

$ sudo yum install epel-release
$ sudo yum install clamav clamav-update rkhunter mailx git
$ git clone https://github.com/lisenet/clamav-daily.git
$ chmod u+x ./clamav-daily/*.sh
$ sudo ./clamav-daily/clamav-rkhunter-scan.sh

Configuration

For systems that are up 24/7, you may want to put the script in the directory /etc/cron.daily/ for daily execution.

Log Rotation

Log rotation is not handled by the script, however, you can use logrotate to achieve that if required.

Simply add your log rotation config to /etc/logrotate.d/clamav-daily and you should be good to go, e.g.:

/var/log/clamav/*.log {
  daily
  rotate 0
}

When rotate count is set to 0, old versions are removed rather than rotated.