The exploitation of vulnerabilities in smart devices has been a persistent problem for many internet of things (IoT) users. Perhaps the most infamous IoT threat is the constantly evolving Mirai malware, which has been used in many past campaigns that compromised devices with default or weak credentials. Different Mirai variants and derivatives have cropped up since its source code was leaked in 2016.

https://blog.trendmicro.com/trendlabs-security-intelligence/with-mirai-comes-miori-iot-botnet-delivered-via-thinkphp-remote-code-execution-exploit/