Echos

Echos is a modular network beacon emulator designed for validating detection systems in cybersecurity labs. It generates realistic command-and-control (C2) traffic across multiple protocols, enabling security teams to test their EDR, NDR, and SIEM solutions under controlled conditions without introducing risks associated with real malware. Key features include a variety of built-in profiles for significant APT groups, customizable configurations, and export capabilities for Sigma, Suricata, and Snort rules, making it a versatile tool for detection engineering.