Home Tech WannaCry-Stopping Hacker MalwareTech Charged With Helping Write Kronos Banking TrojanTechWannaCry-Stopping Hacker MalwareTech Charged With Helping Write Kronos Banking TrojanAugust 3, 2017212FacebookTwitterPinterestWhatsApp Marcus Hutchins is under arrest in Las Vegas for allegedly writing Kronos, a banking trojan, three years ago.