Will stay unpatched

http://www.isssource.com/microsoft-zero-day-to-stay-unpatched/

Pentesting whiteboards

https://pen-testing.sans.org/blog/2017/03/08/pen-test-poster-white-board-powershell-one-line-web-client

https://pen-testing.sans.org/blog/2017/03/08/pen-test-poster-white-board-powershell-get-firewall-rules

https://pen-testing.sans.org/blog/2017/03/08/pen-test-poster-white-board-powershell-built-in-port-scanner

https://pen-testing.sans.org/blog/2017/03/08/pen-test-poster-white-board-powershell-add-a-firewall-rule

https://pen-testing.sans.org/blog/2017/03/08/pen-test-poster-white-board-bash-find-juicy-stuff-in-the-file-system

https://pen-testing.sans.org/blog/2017/03/08/pen-test-poster-white-board-bash-sudo-make-me-a-sandwich

https://pen-testing.sans.org/blog/2017/03/08/pen-test-poster-white-board-cmd-exe-c-wmic-process

https://pen-testing.sans.org/blog/2017/03/08/pen-test-poster-white-board-cmd-exe-c-netsh-interface

https://pen-testing.sans.org/blog/2017/03/06/pen-test-poster-white-board-powershell-ping-sweeper

https://pen-testing.sans.org/blog/2017/03/03/got-meterpreter-pivotpowpy

https://pen-testing.sans.org/blog/2017/02/28/pen-test-poster-white-board-bash-make-output-easier-to-read

https://pen-testing.sans.org/blog/2017/02/21/pen-test-poster-white-board-bash-check-service-every-second

Rootkit Tricks

a few links:
https://msdn.microsoft.com/en-us/library/windows/desktop/ms682489(v=vs.85).aspx
http://stackoverflow.com/questions/4021307/enumprocesses-vs-createtoolhelp32snapshot
https://books.google.com/books?id=ifQPC86G66sC&pg=PA437&lpg=PA437&dq=CreateToolhelp32Snapshot()
https://msdn.microsoft.com/en-us/library/windows/desktop/ms682631(v=vs.85).aspx



A few other windows things:
https://msdn.microsoft.com/en-us/library/windows/desktop/ms724947(v=vs.85).aspx
https://msdn.microsoft.com/en-us/library/windows/desktop/ms646293(v=vs.85).aspx

Hide console shellcode

Windows x86 Hide Console Window Shellcode https://packetstormsecurity.com/files/141586/winx86hide-shellcode.txt

Linux file read

Linux/x86 File Reader Shellcode https://packetstormsecurity.com/files/141698/linuxx86filereader-shellcode.txt

Create File Shellcode

CreateFile Shellcode https://packetstormsecurity.com/files/141707/createfile-shellcode.c

Directory search shellcode

Windows x86 Executable Directory Search Shellcode

https://packetstormsecurity.com/files/141333/win86execdirsearch-shellcode.txt

Random Linux Shellcode

Linux x86_64 Random Listener Shellcode https://packetstormsecurity.com/files/141332/linuxrandom-shellcode.txt

Explain 'getsystem'

https://blog.cobaltstrike.com/2014/04/02/what-happens-when-i-type-getsystem/

https://www.offensive-security.com/metasploit-unleashed/privilege-escalation/

http://carnal0wnage.attackresearch.com/2010/01/metasploit-getsystem-command.html?m=1

http://www.khromozome.com/windows-privilege-escalation-bypassuac/

https://www.redspin.com/it-security-blog/2010/02/getsystem-privilege-escalation-via-metasploit/