Researchers detect an updated Gafgyt variant that targets flaws in small office and home wireless routers from Zyxel, Huawei, and Realtek.

A newly discovered variant of the Gafgyt Internet of Things (IoT) botnet is attempting to infect connected devices, specifically small office and home wireless routers from brands that include Zyxel, Huawei, and Realtek.

Gafgyt was first detected in 2014. Since then, it has become known for large-scale distributed denial-of-service attacks, and its many variants have grown to target a range of businesses across industries. Starting in 2016, researchers with Unit 42 (formerly Zingbox security research) noticed wireless routers are among the most common IoT devices in all organizations and prime targets for IoT botnets.