Our paper on "Targeted Cyber Attacks - A Superset of Advanced Persistent Threats" is available in preprint at:
http://www.computer.org/csdl/mags/sp/preprint/msp2012990114-abs.html
Abstract - Cybercrime increasingly impacts the online world, and targeted attacks
are playing a significant role in disrupting the online social and
economic model. In addition, nations are facing threats as a result of
targeted attacks. In this paper we examine a variety of components and
techniques that are brought together to bring about targeted attacks.
I will update the details once it is published as a part of hard copy.