Get the Whitepaper called Bypassing SEHOP. Microsoft has recently implemented in many Windows versions a new security feature named Structured Exception Handling Overwrite Protection. This paper discusses how it can be bypassed.
You can download it from the following link: https://packetstormsecurity.com/files/download/84158/sehop_en.pdf
Source: https://packetstormsecurity.com/files/84158/Bypassing-SEHOP.html