Rootkits are a collection of tools or sets of applications that allow the administrator-level access to a computer or a network.
These rootkits are fed into the host computer by a cracker (malicious hacker) either by exploiting a known vulnerability of the system or by cracking the password.
These rootkits hide their presence using some of the low layers of the operating system, which makes them almost undetectable by standard anti-malware software.
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So the name implies where ‘rootkit’ is a compound of two words ‘root’ and ‘kit’ where root describes the most privileged user on the computer, and kit describes the set of tools to implement.
The rootkit has a synonym with malware, which describes malware with root capabilities.
