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Red Team Tradecraft

Red teaming emulates a real adversary to test whether an organization can detect and respond, not just whether a vulnerability exists. This page covers the professional craft at a conceptual level — the frameworks, process, and standards that distinguish authorized red teaming from unauthorized access. It is written for defenders and authorized operators; it intentionally does not provide attack payloads or step-by-step intrusion instructions.

Adversary emulation vs penetration testing

Section titled “Adversary emulation vs penetration testing”
Penetration testAdversary emulation (red team)
GoalFind as many vulnerabilities as possibleTest detection/response against a specific threat
ScopeOften broad, noisyNarrow, objective-driven, stealthy
Driven byCoverageThreat intelligence (emulate a known actor’s TTPs)
OutputVulnerability listDid the blue team detect/respond, and where are the gaps

Emulation plans are built from threat intelligence — pick an actor relevant to the organization and reproduce their tactics, techniques, and procedures.

Command-and-control frameworks coordinate an engagement. The well-known open-source ones are Sliver (Go), Mythic (modular, multi-language), and Havoc. For defenders, the relevant point is that each has detection signatures — knowing the toolset helps blue teams build detections (see Blue Team Tools).

Professional engagements separate test infrastructure from operator identity and reduce attributable indicators — using redirectors, categorized domains, and tuned C2 profiles. This is an application of the OPSEC Framework: the critical information is operator identity and infrastructure, and countermeasures reduce the indicators a blue team would use to attribute the activity. (Conceptual here — the value to most readers is recognizing these patterns defensively.)

Document every technique against MITRE ATT&CK so findings speak a language the blue team already uses. Reporting against the ATT&CK Navigator turns an engagement into a concrete map of detection coverage and gaps.

Before anything starts, get in writing: scope (in/out), authorized techniques, timing windows, an emergency-stop procedure and contact, handling of unexpected findings (a real in-progress breach, exposed PII, or a third-party system discovered in scope), and data-handling rules. The ROE protects the client, the operators, and any third parties.

A red team report drives improvement, so structure it for action: executive summary (business risk), technical narrative (the attack story), ATT&CK mapping, risk-rated findings, prioritized remediation, and an evidence appendix. “We got domain admin” is not a deliverable; “here’s what wasn’t detected and how to detect it” is.

The highest-value output is a purple-team debrief: replay the attack chain with the blue team watching, confirm what their telemetry caught, and fix the gaps together. This converts a point-in-time test into durable detection improvements — see the purple-team workflow in Blue Team Tools.