Inthispaperwewillfirstprovideanoverviewofwhatfast-fluxservicenetworksare,howtheyoperate,andhowthecriminalcommunityisleveragingthem,includingtwotypeswhichwehavedesignatedassingle-fluxanddoublefluxservicenetworks.Wethenprovideseveralexamplesoffast-fluxservicenetworksrecentlyobservedin