Chris Kanich Nicholas Weaver Damon McCoy Tristan Halvorson Christian Kreibich Kirill Levchenko Vern Paxson Geoffrey M. Voelker Stefan Savage Show Me the Money: Characterizing Spam-advertised Revenue. 2011 USENIX Security Symposium http://static.usenix.org/events/sec11/tech/full_papers/Kanich.pdf conf/uss/2011 db/conf/uss/uss2011.html#KanichWMHKLPVS11