"Wicked" Variant of Mirai Botnet Emerges | SecurityWeek.Com: Similar to other botnets based on Mirai, the newly discovered Wicked iteration contains three main modules: Attack, Killer, and Scanner. Unlike Mirai, however, which used brute force to gain access to vulnerable IoT devices, Wicked uses known and available exploits, many of which are already old, the security researchers discovered.