At least four different threat actors have been identified as involved in an updated version of a massive ad fraud and residential proxy scheme called BADBOX, painting a picture of an interconnected cybercrime ecosystem. This includes SalesTracker Group, MoYu Group, Lemon Group, and LongTV, according to new findings from the HUMAN Satori Threat Intelligence and Research team, published in collaboration with Google, Trend Micro, Shadowserver, and other partners. The "complex and expansive fraud operation" has been codenamed BADBOX 2.0. It has been described as the largest botnet of infected connected TV (CTV) devices ever uncovered. "BADBOX 2.0, like its predecessor, begins with backdoors on low-cost consumer devices that enable threat actors to load fraud modules remotely," the company said. "These devices communicate with command-and-control (C2) servers owned and operated by a series of distinct but cooperative threat actors."