ClamAV is an open source (GPL) antivirus engine designed for detecting Trojans, viruses, malware and other malicious threats on Linux.
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1. Install EPEL repo
Before we can do proceed, you must ensure that you have the EPEL yum repository enabled.
yum install epel-release -y
2. Install required ClamAV packages
yum install clamav clamd
3. Start the clamd service and set it to auto-start
/etc/init.d/clamd on chkconfig clamd on /etc/init.d/clamd start
4. Update ClamAV’s signatures
Note: ClamAV will update automatically, as part of /etc/cron.daily/freshclam.
Configure Daily Scan
In this example, we will configure a cronjob to scan the /home/ directory every day:
1. Create cron file:
Add the following to the file above. Be sure to change SCAN_DIR to the directory that you want to scan:
#!/bin/bash SCAN_DIR="/home" LOG_FILE="/var/log/clamav/manual_clamscan.log" /usr/bin/clamscan -i -r $SCAN_DIR >> $LOG_FILE
Give our cron script executable permissions:
chmod +x /etc/cron.daily/manual_clamscan
You can even run the above script to ensure that it works correctly.