rootkit

[ root-kit, root‑ ]

noun

1. malicious software that allows an unauthorized user to maintain access to a computer by concealing programs and processes, files, or data from the operating system.

verb (used with or without object)

, root·kit·ted, root·kit·ting.

1. to install such software on (a computer, electronic device, etc.):

   I think my system has been rootkitted.

rootkit

/ ˈruːtˌkɪt /

noun

1. computing a set of programs used to gain unauthorized access to a computer's operating system, esp in order to destroy or alter files, attack other computers, etc

Word History and Origins

Origin of rootkit¹

First recorded in 1990–95; root ¹ (conventional name for the username or account of a UNIX administrator) + kit ¹