Add Rootkit checks

[pdolinic]

Add checks for tainted Kernel Modules

cat /proc/sys/kernel/tainted

https://twitter.com/CraigHRowland/status/1628883826738077696

for i in $(seq 18); do
  echo $(($i-1)) $(($(cat /proc/sys/kernel/tainted) >> $(($i-1)) & 1))
done