Mris botnet responsible for huge waves of distributed denial-of-service attacks recorded by cybersecurity firms Qrator Labs and Cloudflare. Most of these attacks came from MikroTik routers running a vulnerable version of Mikrotik RouterOS. The manufacturer, based in Latvia, issued a fix in April 2018 for a vulnerability designated as CVE-2018-14847. Only 30% of these vulnerable devices were patched successfully – which means that approximately 200,000 routers are still vulnerable.”]
Source: https://www.bankinfosecurity.com/meris-how-to-stop-most-powerful-botnet-on-record-a-17574