In this video from t2’15 Artturi Lehtiö peers inside over 7 years of state sponsored malware operations. The presentation covers themes such as less glamorous side of APT research, tools and approaches, in addition to the challenges related to publishing this type of information.
Those into offensive work can view the video as training material for improving tradecraft.
For additional information on the subject, here are the links for the whitepapers mentioned during the talk.