CYBERSECURITY AND DFIR

Threat Hunting Hypothesis Builder.

Additional page sections

Turns a defensive suspicion into a hunt hypothesis with telemetry, expected observations and falsification criteria.

Version 1.5 Research interface Protected engine Threat-hunting hypothesis card
PURPOSE

Decision supported.

Turns a defensive suspicion into a hunt hypothesis with telemetry, expected observations and falsification criteria.

Intended user

research, assurance and technical review teams

Output status

Preliminary outputHuman review requiredNot certification
USE CASES

Where this instrument fits.

  • Create hunt cards
  • Define evidence that would confirm or refute a hypothesis
  • Map telemetry needed before a hunt
  • Improve defensive reasoning without exploit detail
INPUTS

Required input fields.

  • Primary tactic (required): Initial access, Credential access, Lateral movement, Persistence, ...
  • Hypothesis (required)
  • Telemetry availability (required): Weak or unknown, Partial, Strong and evidenced
  • Baseline quality (required): Weak or unknown, Partial, Strong and evidenced
  • Actionability (required): Exploratory, Triage-ready, Response-ready

Data handling: this interface uses the L2ET protected same-origin instrument engine. Do not enter confidential, regulated, privileged, incident, medical or sensitive operational data.

METHOD

Falsification Matrix logic.

Structures the hypothesis, expected observations, required telemetry, falsification logic and response trigger.

Source families

threat hunting practiceMITRE ATT&CK source family

Assumptions

  • Hunt quality depends on telemetry and baseline accuracy.
  • The tool does not query logs.
  • Hypotheses require analyst review.
INTERACTIVE INSTRUMENT

Threat-hunting hypothesis card.

Use the controls below to generate a preliminary artifact. The output is intentionally bounded and requires human review.

OUTPUT ARTIFACT

Threat-hunting hypothesis card.

The generated artifact includes findings, assumptions, limitations, recommended next actions and exportable structured output.

Export options

Copy outputMarkdownJSON
EXAMPLE

Example input and output.

Example input

Credential-access hypothesis using geo-anomaly and identity logs with partial baseline.

Example output

Outputs evidence needed, expected observations, falsification criteria and triage route.

LIMITATIONS

What this tool does not do.

  • Does not provide offensive procedures.
  • Does not connect to SIEM or EDR.
  • Does not prove compromise.

This instrument does not provide legal, medical, cryptographic, engineering, regulatory or compliance certification.

RELATED METHOD

Method and workflow links.

Read the family method note for assumptions, output artifacts, update policy and review boundaries.

Open methodology Open family

RELATED TOOLS

Suggested workflow sequence.

DFIR Evidence Map Builder

Builds an evidence source matrix and investigation sequence for a selected incident scenario.

open instrument →

KEV Exposure Triage Tool

Prioritizes review of a known-exploited vulnerability using user-entered exposure, asset criticality and compensating controls.

open instrument →

Cyber Resilience Control Mapper

Maps a disruption scenario to controls, telemetry, recovery evidence and test cadence.

open instrument →
CHANGELOG

Version history.

  • v1.5 - Research-grade instrument template, method notes, assumptions, limitations, example and export actions added.
  • Last updated: 2026-05-27.
  • Maturity state: Research interface.