r00tk1t init
参考:
http://www.freebuf.com/articles/system/54263.html
https://chirath02.wordpress.com/tag/asmlinkage/
r00tk1t基础实验
https://memset.wordpress.com/2010/12/28/syscall-hijacking-simple-rootkit-kernel-2-6-x/
https://memset.wordpress.com/2011/01/20/syscall-hijacking-dynamically-obtain-syscall-table-address-kernel-2-6-x/
http://www.mallocfree.com/data/compile-linux-kernel-mallocfree.com.pdf
https://ruinedsec.wordpress.com/2013/04/04/modifying-system-calls-dispatching-linux/