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How To Threat Hunt in Encrypted Network Traffic

Presented by

Matt Ellison, Director of Sales Engineering for EMEA, Corelight

About this talk

Threat hunters need evidence to find adversaries. Networks offer a broad and reliable source of evidence, helping hunters make sense of movement across their environment via an immutable record of activity. Traffic, unlike endpoints, cannot lie. But the rise of encryption complicates this picture, especially where decryption isn't an optimal or possible solution. Fortunately, the open-source Zeek Network Security Monitor (formerly Bro) can provide visibility into actionable metadata on encrypted streams for threat hunters without breaking and inspecting payloads. With Zeek, analysts can see the use of self-signed certificates, fingerprint SSH and SSL traffic, identify encryption on non-standard ports, and more. And Corelight's commercial solutions extend Zeek's capabilities, especially around SSH traffic, giving analysts new insight into activities such as file transfer or keystrokes over SSH. Watch this technical webcast to hear from Matt Ellison at Corelight, about his experience using Zeek and Corelight to threat hunt and learn how you can apply their insights in your environment, whether traffic is encrypted, or not.
Corelight

Corelight

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Corelight transforms network and cloud activity into evidence
Corelight transforms network and cloud activity into evidence so that data-first defenders can stay ahead of ever-changing attacks. Delivered by our open NDR platform, Corelight’s comprehensive, correlated evidence gives you unparalleled visibility into your network. This evidence allows you to unlock new analytics, investigate faster, hunt like an expert, and even disrupt future attacks. Our on-prem and cloud sensors go anywhere to capture structured, industry-standard telemetry and insights that work with the tools and processes you already use. Corelight’s global customers include Fortune 500 companies, major government agencies, and research universities.
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