rootkit

As a noun rootkit

is (computing) a set of software tools used by a third party after gaining access to a computer system in order to conceal the altering of files, or processes being executed by the third party without the user's knowledge.

As a verb rootkit

is to infect (a computer system) with a rootkit.

As an adjective rat is

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is likely misspelled.

has no English definition.

As a noun rootkit

is a set of software tools used by a third party after gaining access to a computer system in order to conceal the altering of files, or processes being executed by the third party without the user's knowledge.

As a verb rootkit

is to infect (a computer system) with a rootkit.

As nouns the difference between bootkit and rootkit

is that bootkit is (label) a rootkit which works by replacing]] boot loader and patching the kernel before it is starts [[execute|executing while rootkit is (computing) a set of software tools used by a third party after gaining access to a computer system in order to conceal the altering of files, or processes being executed by the third party without the user's knowledge.

As a verb rootkit is

to infect (a computer system) with a rootkit.

As nouns the difference between taxonomy and rootkit

is that taxonomy is the science or the technique used to make a classification while rootkit is (computing) a set of software tools used by a third party after gaining access to a computer system in order to conceal the altering of files, or processes being executed by the third party without the user's knowledge.

As a verb rootkit is

to infect (a computer system) with a rootkit.