RapperBot, an evolved Mirai variant, targets DVRs via brute-force and zero-days, launching sophisticated DDoS attacks with encrypted DNS and HTTPS-based traffic, as revealed by NICT CSRI.

A 22-year-old Oregon man has been charged with operating the RapperBot botnet, a network of 10,000s of devices that launched over 370,000 attacks.

TL;DR A KGUARD DVR vulnerability now tracked as CVE-2026-87827 carries a maximum CVSS score of 10.0. It lets an unauthenticated attacker run commands and fully take over the device. Mirai botnets …