Just looking at the list of steps that needs to happen for these modern exploits is mind blowing for a layman. Can any expert comment on how easy/hard it is to find such exploits. How much of it is skill and how much luck. How does one come up with them. Is it primarily based off knowledge (which is essential ofcourse) or more some people have an intuitive knack for it.
Virustotal has been well known for a while now as a honeypot for catching new strains of malware and zero-days. Chances are it was uploaded by an unknowing "customer" of a malware author.