A new version of Gafgyt botnet malware has been enlisting routers from Zyxel and Huawei, as well as devices with Realtek RTL81xx chipset, using them for denial-of-service (DoS) attacks against servers running the Valve Source engine. […]

from https://www.bleepingcomputer.com/news/security/new-gafgyt-variant-recruits-routers-to-ddos-servers-for-valve-games/