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Yeet the Leet with Osquery: Complementing EDR Telemetry

Sebastian Provost

Sebastian Provost demonstrates using Osquery to complement EDR/XDR systems, writing SQL queries to detect open-source C2 implant payloads on endpoints.

Summary

Enhancing Endpoint Visibility with Osquery

While commercial EDR and XDR solutions provide real-time behavioral alerts, Osquery exposes an operating system as a high-performance relational database for custom querying.

Introducing Osquery for Defensive Telemetry

Sebastian Provost explains how Osquery tables represent system state—including running processes, open network sockets, loaded kernel modules, and browser extensions.

Detecting Open-Source C2 Implants with SQL Queries

Provost analyzes multiple open-source C2 frameworks (such as Mythic and Covenant), demonstrating SQL queries that detect their unique memory and disk artifacts.

Building an Open-Source Endpoint Telemetry Pipeline

The author provides defensive teams with deployment configurations and scheduled query packs to integrate Osquery into centralized threat hunting pipelines.

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  • DEF CON
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