Insomni’Hack 2026 – Golden Payout writeup

The challenge

A massive data breach has just hit our corporate network. Highly sensitive documents have been spotted on a prominent Darknet leaking platform. Preliminary network telemetry has flagged suspicious outbound traffic originating from a specific workstation belonging to one of our DBAs. As part of the Rapid Response Investigation Team, you have been assigned to perform a deep-dive forensic analysis of the suspect’s workstation.

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Splunk & advanced filtering with Event Masker

What is Splunk ?

Splunk is a Data-to-Everything Platform designed to ingest and analyze all kind of data. They can be visualized and correlated through Splunk searches, alerts, dashboards, and reports. Splunk is the #1 of 2020 Gartner Magic Quadrants in SIEMs for its performant analysis and visionary in Application Performance Management category.

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