Malware Detect is very easy to install on CentOS, regardless of the control panel you might or might not utilize (cPanel/WHM, Directadmin, etc). Maldet also known as Linux Malware Detect virus scanner for Linux.

There is nothing complicated in installation process, but root access to your server is required.
You need to SSH into your server and fire the following commands to install maldet

cd /usr/local/src/
wget http://www.rfxn.com/downloads/maldetect-current.tar.gz
tar -xzf maldetect-current.tar.gz
cd maldetect-*
sh ./install.sh or sudo sh ./install.sh 
maldet --update-ver
maldet --update

Configuring LMD
By default all options are disabled in the configuration file, so configure it according to your needs.

email_alert : If you would like to receive email alerts, then it should be set to 1.
email_subj : Set your email subject here.
email_addr : Add your email address to receive malware alerts.
quar_hits : The default quarantine action for malware hits, it should be set 1.
quar_clean : Cleaning detected malware injections, must set to 1.
quar_susp : The default suspend action for users wih hits, set it as per your requirements.
quar_susp_minuid : Minimum userid that can be suspended.

Open file /usr/local/maldetect/conf.maldet and make changes according to your needs

nano /usr/local/maldetect/conf.maldet

To update the maldet use the below commands.

maldet -u or maldet -d

To scan the files of specific user

maldet -a /home/username/

To scan all users under public_html paths under /home*/ this can be done with:

root@server[~]# maldet --scan-all /home?/?/public_html

Or

root@server[~]-maldet --scan-all /home

So maldet helps you keep your server secure by adding a level of defense against malicious code, never forget though that it’s not enough, you should always update and keep your firewall updated and configured.