@InProceedings{ ccied11trajectory, author = {Kirill Levchenko and Neha Chachra and Brandon Enright and Mark Felegyhazi and Chris Grier and Tristan Halvorson and Chris Kanich and Christian Kreibich and He Liu and Damon McCoy and Andreas Pitsillidis and Nicholas Weaver and Vern Paxson and Geoffrey M. Voelker and Stefan Savage}, title = {{Click Trajectories: End-to-End Analysis of the Spam Value Chain}}, booktitle = {Proceedings of 32nd annual Symposium on Security and Privacy}, year = {2011}, month = {May}, organization = {IEEE}, }