macos - How to remove osx kernel extension

I am trying to remove a kernel extension but every time i restart it keeps coming back how to permanently remove it?

i believe this com.ab.kl.engine is some sort of spyware

output of: kextstat | grep -v com.apple

  104    0 0xffffff7f81fa3000 0x4000     0x4000     com.ab.kl.engine (1) <34 4 3>

available extensions in /Library/Extensions:

ACS6x.kext
ATTOCelerityFC8.kext
ATTOExpressSASHBA2.kext
ATTOExpressSASRAID2.kext
ArcMSR.kext
CalDigitHDProDrv.kext
HighPointIOP.kext
HighPointRR.kext
LittleSnitch.kext
PromiseSTEX.kext
SoftRAID.kext

any idea how to get rid of com.ab.kl.engine permanently?

Answer

How did you try to remove it? Also there are more than one place an extension can live/hide. I would check /System & /Library.

You can use kextunload like this...

sudo kextunload /System/Library/Extensions/extension_name_here.kext

Or at the filesystem level

mount -uw /
rm -rf /System/Library/Extensions/extension_name_here.kext
  or
rm -rf /Library/Extensions/extension_name_here.kext

If after doing these are you still seeing the extension loaded?