The secret life of a rootkit
Much as in the movie The Matrix, where the world presented is not a true presentation of what is really going on, a rootkit is a program that can be used to hide files, registry settings, network connections, processes and other information from computer users.
For example, a rootkit can make processes that run but are hidden from Windows Task Manager, registry keys that can't be seen with Regedit, and network connections that are not viewable by Netstat.
Rootkit technology allows malicious software (malware) to be stealthier, and that in general makes it more effective. Techworld.com - The secret life of a rootkit
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