Category: Detection Engineering

Articles tagged Detection Engineering

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Exploring the Hugging Face Breach: mapping AI agent tactics to Elastic Defend

Every stage of the Hugging Face breach maps to Elastic Defend and SIEM rules already shipping, from worker RCE and credential harvest to self-migrating C2 and GenAI detection.

Elastic Security Labs

Detecting Tycoon 2FA AiTM attacks across Entra ID and Google Workspace

Tycoon 2FA bypasses MFA on Entra ID and Google Workspace. We map telemetry fingerprints across both platforms, ship detection rules for both tiers, and contain incidents in under 10 seconds with Elastic Workflows.

Samir Bousseaden

CI/CD pipeline abuse: the problem no one is watching

How we built an open-source, drop-in CI template that uses signal extraction and LLM reasoning to catch CI/CD abuse in GitHub Actions, GitLab CI, and Azure DevOps pipelines.

Mika Ayenson

Beyond Behaviors: AI-Augmented Detection Engineering with ES|QL COMPLETION

Learn how Elastic's ES|QL COMPLETION command brings LLM reasoning directly into detection rules, enabling detection engineers to build intelligent alert triage without external orchestration.

Mika Ayenson

Misbehaving Modalities: Detecting Tools, Not Techniques

We explore the concept of Execution Modality and how modality-focused detections can complement behaviour-focused ones.

John Uhlmann

AWS SNS Abuse: Data Exfiltration and Phishing

During a recent internal collaboration, we dug into publicly known SNS abuse attempts and our knowledge of the data source to develop detection capabilities.

Terrance DeJesus

Linux Detection Engineering - The Grand Finale on Linux Persistence

By the end of this series, you'll have a robust knowledge of both common and rare Linux persistence techniques; and you'll understand how to effectively engineer detections for common and advanced adversary capabilities.

Ruben Groenewoud

Emulating AWS S3 SSE-C Ransom for Threat Detection

In this article, we’ll explore how threat actors leverage Amazon S3’s Server-Side Encryption with Customer-Provided Keys (SSE-C) for ransom/extortion operations.

Terrance DeJesus

Linux Detection Engineering - Approaching the Summit on Persistence Mechanisms

Building on foundational concepts and techniques explored in the previous publications, this post discusses some creative and/or complex persistence mechanisms.

Ruben Groenewoud

Announcing the Elastic Bounty Program for Behavior Rule Protections

Elastic is launching an expansion of its security bounty program, inviting researchers to test its SIEM and EDR rules for evasion and bypass techniques, starting with Windows endpoints. This initiative strengthens collaboration with the security community, ensuring Elastic’s defenses remain robust against evolving threats.

Mika Ayenson

Linux Detection Engineering - A Continuation on Persistence Mechanisms

This document continues the exploration of Linux detection engineering, emphasizing advancements in monitoring persistence mechanisms. By building on past practices and insights, it provides a roadmap for improving detection strategies in complex environments.

Ruben Groenewoud

Detonating Beacons to Illuminate Detection Gaps

Learn how Elastic Security leveraged open-source BOFs to achieve detection engineering goals during our most recent ON week.

Mika Ayenson