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rootkit
This term describes a specific class of stealthy malware that targets the deepest levels of an operating system. The primary characteristic is not just the ability to steal data, but the ability to manipulate the system's own reporting mechanisms so that the malware becomes invisible to standard task managers and antivirus scanners.
Because it operates at the kernel or boot level, a rootkit is often viewed as a persistent threat that is extremely difficult to remove without a complete system wipe. It differs from a standard virus or trojan by its focus on concealment and administrative privilege escalation.
Meanings
Examples
The security audit revealed a sophisticated rootkit embedded in the server kernel.
I think my laptop has a rootkit because the antivirus cannot find any threats but the system is lagging.
I think my laptop has a rootkit because the antivirus cannot find any threats but the system is lagging.
A kernel mode rootkit can intercept system calls to hide its own files.
We need to wipe the drive completely to ensure the rootkit is gone.
The hacker used a rootkit to maintain persistent access to the network.
Is it possible for a rootkit to survive a full OS reinstallation?
The firmware rootkit was nearly impossible to detect using standard software tools.
He realized too late that the free software he downloaded contained a hidden rootkit.