Investigating Commercial Pay-Per-Install and the Distribution of Unwanted Software. - Kurt Thomas; Juan A. Elices Crespo; Ryan Rasti; Jean-Michel Picod; Cait Phillips; Marc-André Decoste; Chris Sharp; Fabio Tirelo; Ali Tofigh; Marc-Antoine Courteau; Lucas Ballard; Robert Shield; et al. (USENIX Security Symposium, 2016)