Get the Whitepaper called Bypassing Windows 7 Kernel ASLR. In this paper, the author explains every step to code an exploit with a useful kernel ASLR bypass. Successful exploitation is performed on Windows 7 SP0 / SP1.
You can download it from the following link: https://packetstormsecurity.com/files/download/105700/NES-BypassWin7KernelAslr.pdf
Source: https://packetstormsecurity.com/files/105700/Bypassing-Windows-7-Kernel-ASLR.html