Characterizing Seller-Driven Black-Hat Marketplaces. - Shehroze Farooqi; Muhammad Ikram 001; Gohar Irfan; Emiliano De Cristofaro; Arik Friedman; Guillaume Jourjon; Mohamed Ali Kâafar; Muhammad Zubair Shafiq; Fareed Zaffar (CoRR, 2015)