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building-threat-hunt-hypothesis-framework

Builds testable threat hunt hypotheses from threat intelligence, ATT&CK techniques, and telemetry data sources.

954|172|Updated Mar 13, 2026
Search Tags:#detection#threat hunting#threat intelligence#siem#Hypothesis#edr#mitre att&ck
One-click install
npx skills add https://github.com/xalgord/xalgorix --skill building-threat-hunt-hypothesis-framework
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: building-threat-hunt-hypothesis-framework
Source: https://github.com/xalgord/xalgorix/tree/main/internal/tools/skills/data/threat-hunting/building-threat-hunt-hypothesis-framework
Command: npx skills add https://github.com/xalgord/xalgorix --skill building-threat-hunt-hypothesis-framework

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Security teams often run unstructured hunts with vague goals like "find evil," producing unfalsifiable hypotheses, false negatives from missing log coverage, and results that cannot be validated. This Skill turns threat intelligence, ATT&CK techniques, and environmental data into scoped, testable hunting hypotheses with verified data coverage.

Core Features & Use Cases

  • Hypothesis Formulation: Scope every hypothesis to a specific MITRE ATT&CK technique, a named data source, and an observable indicator.
  • Coverage Verification: Confirm log ingestion (Sysmon, Windows Event Logs, EDR telemetry) before hunting so absence of evidence is meaningful.
  • End-to-End Validation: Emit benign atomic tests to prove the hunt query actually catches the target behavior, and document findings in a structured hunt report.
  • Use Case: After a threat intel report on an APT campaign using PowerShell Empire stagers, build a hypothesis around T1059.001 with Script Block Logging (Event ID 4104), verify ingestion, run the query, and confirm detection with a benign -enc test command.

Quick Start

Build a threat hunt hypothesis framework for detecting PowerShell-based initial access using our existing Splunk and Sysmon telemetry.

Frequently Asked Questions about building-threat-hunt-hypothesis-framework

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build a threat hunting hypothesis?▼

Scope the hypothesis to a specific MITRE ATT&CK technique, a named data source, and an observable indicator. For example, target T1059.001 by hunting Event ID 4104 logs containing FromBase64String and WebClient strings rather than searching for generic malicious activity.

What data sources are needed for threat hunting?▼

Effective hunting requires EDR telemetry from platforms like CrowdStrike or Microsoft Defender for Endpoint, SIEM-ingested logs in Splunk, Elastic, or Sentinel, Sysmon with a comprehensive configuration, and Windows Security Event Log forwarding.

Why does my threat hunt return no results?▼

Empty results often mean missing coverage rather than a clean environment. Verify log ingestion first, check each source's last-seen timestamp, and confirm Sysmon or Script Block Logging is actually enabled before concluding no threat exists.

How do I validate that a hunt query actually works?▼

Emit a benign atomic test matching the hypothesis, such as running a PowerShell -enc command or requesting a Kerberos SPN ticket, then confirm the query returns your test event end-to-end before trusting negative results.

What tools work with this threat hunting methodology?▼

The framework supports CrowdStrike Falcon, Microsoft Defender for Endpoint with KQL, Splunk with SPL, Elastic Security, Sysmon, Velociraptor for artifact collection, and Sigma rules for cross-platform detection.

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