Kaspersky Labs earlier today wrote about an attack they discovered in January that compromised Asus' Live Update Utility. The attack affected 57,000 Kaspersky customers and may have hit as many as 500,000 computers around the world. Dubbed "Operation ShadowHammer," the attack injected a Trojan into the Live Update Utility and used authentic Asus software certificates to install itself onto targeted systems.
https://www.notebookcheck.net/Tens-of-thousands-of-computers-had-a-security-backdoor-installed-via-Asus-Live-Update-Utility.415071.0.html