Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

In Episode 7 of Corelight DefeNDRs, join me, Richard Bejtlich, as I sit down with Dr. Keith Jones, Corelight's principal security researcher, to discuss the practical applications of AI in enhancing network security. We delve into how large language models (LLMs) can assist in cleaning up documentation and generating Zeek scripts, sharing insights from our extensive experience in incident response and coding. Keith reveals the challenges and successes he has encountered using LLMs to streamline processes, including their role in analyzing MITRE techniques.

In Episode 6 of Corelight DefeNDRs, we delve deeper into the fascinating world of DNS covert channels with Vern Paxson, our chief scientist and co-founder. Continuing from our previous discussion, Vern shares his insights on techniques developed to detect these stealthy channels utilized by intruders to evade security measures. We explore the innovative approach of leveraging time series analysis of DNS lookups, how to distinguish benign traffic from potential threats, and the real-world implications of our findings across significant datasets.

In Episode 5 of Corelight Defenders, I, Richard Bejtlich, engage with Corelight's co-founder and chief scientist, Vern Paxson, to delve into the intricate world of DNS covert channels. We explore how adversaries exploit DNS lookups to silently communicate within tightly controlled enterprise environments. Vern explains various methods attackers may use, from encoding data in seemingly benign domain names to manipulating the timing of requests. Our discussion highlights the challenges of detecting these covert channels, especially in the presence of network monitoring.