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Tales Of Valhalla – March 2024

Tales Of Valhalla – March 2024

Every month the Nextron Threat Research Team (NTRT) shares insights into evasive threats that we’ve seen in the wild via our Valhalla service. The aim is to highlight interesting samples our rules detected and have or had very low detection rates as reported by...

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Demystifying SIGMA Log Sources

Demystifying SIGMA Log Sources

One of the main goals of Sigma as a project and Sigma rules specifically has always been to reduce the gap that existed in the detection rules space. As maintainers of the Sigma rule repository we're always striving for reducing that gap and making robust and...

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Sigma Rule Feed in Valhalla

Nextron Systems has always supported the Sigma project, investing hundreds of work hours into creating and maintaining the community rules shared in the public Sigma rule repository. Apart from the community support, we've created a set of internal detection rules for...

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Aurora – Sigma-Based EDR Agent – Preview

The following recorded video session includes information about our new Sigma-based EDR agent called "Aurora" and the free "Aurora Lite". It's a preview of the agent with information on its features, limits, advantages and a live demo. The release is scheduled for...

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Sigma Scanning with THOR

Our compromise assessment scanner THOR is able to apply Sigma rules during the local Eventlog analysis. This can help any customer that has no central SIEM system or performs a live forensic analysis on a system group that does not report to central monitoring.  By...

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The Best Possible Monitoring with Sigma Rules

Some of you may already have heard of Sigma, a generic approach for signatures used in SIEM systems. Its main purpose is to provide a structured form in which researchers or analysts can describe their once developed detection methods and make them shareable with...

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