Its always recommended to have Rootkit Hunter [ RKHunter ] installed on your cpanel VPS server so as to secure it from varnability and server attacks. You can ask your webhost to install all required scripts and applications on your server so that your server would be secured and safe.
You can consider RKHunter is as most useful application which can protect your server from unknown attacks/threats. Rootkits are usually installed by blackhats, crackers and scriptkiddies, to avoid the eye of the sysadmin and can track all your activities. Once rootkits are installed on your server its very difficult to remove them as they affect system files. Using RKHunter it will notify you of any rootkits which may exist in your system so that you can take necessary steps to avoid any security issue.
If you want to install Rootkit Hunter it’s a simple process, you can also configure it and can make it to scan your system on daily basis which will inform you about any rootkits installed by anyone. Using following steps you an installing RKHunter on your cpanel VPS :

Firstly you need to login to your server as root then download the package and extract it using  following command
wget http://prdownloads.sourceforge.net/rkhunter/rkhunter-1.3.0.tar.gz
tar -xzf rkhunter*
now run this using  cd rkhunter-1.3.2 and ./installer.sh
Once installation is completed you can protect your server from rootkits which may create threats for your server.

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