rkhunter command not found
Introduction
When you run more command in linux terminal / console, you get the following error message
rkhunter: command not found
or when using sudo you get the following error message
sudo: rkhunter: command not found
Solutions to rkhunter: command not found
How To Fix rkhunter: command not found in Ubuntu / Debian / Kali Linux / Raspbian
In Ubuntu rkhunter is provided by rkhunter package.
rkhunter is:
Rootkit Hunter scans systems for known and unknown rootkits, backdoors, sniffers and exploits.
It checks for:
- SHA256 hash changes;
- files commonly created by rootkits;
- executables with anomalous file permissions;
- suspicious strings in kernel modules;
- hidden files in system directories; and can optionally scan within files.
Using rkhunter alone does not guarantee that a system is not compromised. Running additional tests, such as chkrootkit, is recommended.
To fix this problem, we can install more using the command below.
sudo apt-get -y install rkhunter
This command might take some time to finish depending on your machine internet connection.
You can also use apt command to install rkhunter.
sudo apt -y install rkhunter
Or if you have aptitude installed you can use the following command.
sudo aptitude install rkhunter
Summary
In this tutorial we learn how to fix rkhunter command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.