The Linux kernel is a Unix-like computer operating system kernel. It is used world-wide: the Linux operating system is based on it and deployed on both traditional computer systems such as personal computers and servers, usually in the form of Linux distributions, and on various embedded devices
... [More] such as routers, wireless access points, PBXes, set-top boxes, FTA receivers, smart TVs, PVRs and NAS appliances. The Android operating system for tablet computers, smartphones and smartwatches is also based atop the Linux kernel.
(from Wikipedia) [Less]
Bastardo doesn't use the syscall table.
It uses the VFS layer to inject its hooks.
Therefore, it is stealthier.
local escalation. kernel module hiding process hiding
remote escalation with callback full directory hiding network stealth capabilities reboot resiliency