Episode 10 — Read network telemetry for signals that count
Network telemetry serves as a primary source of ground truth during an investigation, providing a technical record of every interaction between the adversary and the targeted infrastructure. This episode focuses on identifying the specific signals that count, such as unusual outbound traffic patterns, non-standard protocol usage, and suspicious domain name system (DNS) queries. We dive into the analysis of NetFlow data, firewall logs, and packet captures, explaining how to spot the "heartbeat" of a command-and-control (C2) beacon hidden within legitimate web traffic. For the certification exam, you must be able to interpret these technical markers to determine which stage of the kill chain an attacker is currently navigating. Real-world application involves setting up "tripwires" based on these telemetry signals to provide early warning of an intrusion before it reaches the exfiltration phase. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.
