What is RootKit Hunter ?
Rootkit scanner is scanning tool to ensure you for about 99.9% you're clean of nasty tools. This tool scans for rootkits, backdoors and local exploits by running tests like:

- MD5 hash compare
- Look for default files used by rootkits
- Wrong file permissions for binaries
- Look for suspected strings in LKM and KLD modules
- Look for hidden files
- Optional scan within plaintext and binary files
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Official site & detail information here.
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RootKit Installation

Login to your SSH Terminal.

Type the following command.

Code: 
cd /usr/src/utils
wget http://nchc.dl.sourceforge.net/project/rkhunter/rkhunter/1.3.6/rkhunter-1.3.6.tar.gz
tar xfz rkhunter-1.3.6.tar.gz
cd rkhunter-1.3.6
sh installer.sh--install
You have RootKit Hunter installed on your Server

Now we run RootKit Hunter to find possible Spywares, Malwares, etc
Type the following command to run RootKit Hunter
Code: 
rkhunter -c
You see the files getting scanned by the RootKit Hunter. It'll detect the possible infected files and then you'll need to fix the file.

Note : Please check the file version on the official site as newer update might be available
Credit : Tutorial by BlaZe
You are free to spread this tutorial only if you keep the 'Credits' unchanged.
Please, while doing Ctrl+C & Ctrl+V, keep my Credits, just to show respect my work ?
BlaZe Reviewed by BlaZe on . HOWTO Install RootKit Hunter on Linux What is RootKit Hunter ? Rootkit scanner is scanning tool to ensure you for about 99.9% you're clean of nasty tools. This tool scans for rootkits, backdoors and local exploits by running tests like: - MD5 hash compare - Look for default files used by rootkits - Wrong file permissions for binaries - Look for suspected strings in LKM and KLD modules - Look for hidden files - Optional scan within plaintext and binary files ====================== Rating: 5