KATARU is an IoT malware variant identified in 2026 that uses Telnet credential brute-forcing to infect devices. It combines traditional Mirai-style botnet features with multiple Linux local privilege escalation exploits and advanced persistence mechanisms across Linux and embedded platforms. The malware uses encrypted command and control communications and employs anti-analysis and decoy traffic techniques. Artifacts suggest AI-assisted development, including mismatched shellcode and untested cross-platform logic. It supports various DDoS attack methods and SSH brute-forcing.
