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building-threat-hunt-hypothesis-framework

building-threat-hunt-hypothesis-framework is a skill for Claude Code, Codex from Youngmaidainon/Agent-Level-Up. It costs 96 tokens per session (814 once invoked), scanned A, a copy of building-threat-hunt-hypothesis-framework, MIT.

A structured process for threat hunting, the proactive search for signs of an attack that automated alerts may miss. It turns threat intelligence or ATT&CK technique gaps into hypotheses, then tests them against endpoint and security logs.

In plain words
What is it for?
It is for writing hunt hypotheses, selecting telemetry, running EDR and SIEM queries, correlating results, and producing standardized hunt reports.
Why use it?
It gives hunters a repeatable way to decide what to look for, check evidence across systems, and record whether a suspected behavior is present.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 4repo 2mo ago A scan 96 tokens copy · 97% MIT

Good fit It is for writing hunt hypotheses, selecting telemetry, running EDR and SIEM queries, correlating results, and producing standardized hunt reports.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/youngmaidainon/agent-level-up/building-threat-hunt-hypothesis-framework
View source ↗ Youngmaidainon/Agent-Level-Up
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Youngmaidainon/Agent-Level-Up --skill building-threat-hunt-hypothesis-framework
Clone the repo
git clone --depth 1 https://github.com/Youngmaidainon/Agent-Level-Up

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for building-threat-hunt-hypothesis-framework

README.md
[![agentmods](https://agentmods.dev/badge/skills/youngmaidainon/agent-level-up/building-threat-hunt-hypothesis-framework/github.svg)](https://agentmods.dev/skills/youngmaidainon/agent-level-up/building-threat-hunt-hypothesis-framework)
Your own site
<a href="https://agentmods.dev/skills/youngmaidainon/agent-level-up/building-threat-hunt-hypothesis-framework"><img src="https://agentmods.dev/badge/skills/youngmaidainon/agent-level-up/building-threat-hunt-hypothesis-framework/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for building-threat-hunt-hypothesis-framework

Your own site · 80×15
<a href="https://agentmods.dev/skills/youngmaidainon/agent-level-up/building-threat-hunt-hypothesis-framework"><img src="https://agentmods.dev/badge/skills/youngmaidainon/agent-level-up/building-threat-hunt-hypothesis-framework.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 814 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 97% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00096 $0.00814
Opus 5.5 $0.00038 $0.00326
Sonnet 5.5 $0.00019 $0.00163
Haiku 4.5 $0.00010 $0.00081

Measured 2mo ago against content hash 839804d8a8f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

building-threat-hunt-hypothesis-framework scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/agent.py, scripts/process.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

97% identical to building-threat-hunt-hypothesis-framework — 3 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

cyber-security/ctf/building-threat-hunt-hypothesis-framework/SKILL.md · 96 lines

How it starts

The opening of the file, as written. The whole thing — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Building Threat Hunt Hypothesis Framework

When to Use

  • When proactively hunting for indicators of building threat hunt hypothesis framework in the environment
  • After threat intelligence indicates active campaigns using these techniques
  • During incident response to scope compromise related to these techniques
  • When EDR or SIEM alerts trigger on related indicators
  • During periodic security assessments and purple team exercises

Prerequisites

  • EDR platform with process and network telemetry (CrowdStrike, MDE, SentinelOne)
  • SIEM with relevant log data ingested (Splunk, Elastic, Sentinel)
  • Sysmon deployed with comprehensive configuration
  • Windows Security Event Log forwarding enabled
  • Threat intelligence feeds for IOC correlation

Workflow

  1. Formulate Hypothesis: Define a testable hypothesis based on threat intelligence or ATT&CK gap analysis.
  2. Identify Data Sources: Determine which logs and telemetry are needed to validate or refute the hypothesis.
  3. Execute Queries: Run detection queries against SIEM and EDR platforms to collect relevant events.
  4. Analyze Results: Examine query results for anomalies, correlating across multiple data sources.
  5. Validate Findings: Distinguish true positives from false positives through contextual analysis.
  6. Correlate Activity: Link findings to broader attack chains and threat actor TTPs.
  7. Document and Report: Record findings, update detection rules, and recommend response actions.

Key Concepts

Concept Description
TA0001 Initial Access
TA0003 Persistence
TA0008 Lateral Movement
TA0010 Exfiltration

Tools & Systems

Tool Purpose
CrowdStrike Falcon EDR telemetry and threat detection
Microsoft Defender for Endpoint Advanced hunting with KQL
Splunk Enterprise SIEM log analysis with SPL queries
Elastic Security Detection rules and investigation timeline
Sysmon Detailed Windows event monitoring
Velociraptor Endpoint artifact collection and hunting
Sigma Rules Cross-platform detection rule format

Read the full file on GitHub · 96 lines

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 96 lines · 96 tokens per session scan A 839804d8a8f5

Subscribe to this mod's changes

building-threat-hunt-hypothesis-framework is a skill published in the GitHub repository Youngmaidainon/Agent-Level-Up (4 stars, last pushed 2mo ago), licensed MIT. It adds 96 tokens to every session and 814 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 97% identical to building-threat-hunt-hypothesis-framework, differing in 3 lines, and is treated as a copy.

ResearchSecurityagent-skillsantigravity-skillscavemanclaude-code-skillctfcursor-skillshunting-frameworkhypothesismethodologyproactive-detectionthreat-huntingthreat-intelligence
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