itsual Adversary Emulation
Overview
Adversary emulation is intelligence-led red teaming: replicate the tactics, techniques, and procedures of relevant threat actors to test whether defenses stop, detect, and respond to those behaviors.
When to Use
- CTI-informed offensive exercises
- Validating detections against known actor tradecraft
- Building ATT&CK-aligned emulation plans
- Bridging threat intel and security operations
Core Practices
- Select adversaries relevant to your sector, tech, and threat model
- Extract TTPs from credible intel; map to MITRE ATT&CK
- Build an ordered emulation plan (attack chain), not a random technique list
- Prepare tools/procedures that approximate behaviors within legal and safety limits
- Execute under approved Rules of Engagement
- Record which steps were prevented, detected, alerted, and responded to
- Convert gaps into detection engineering and control backlog items
Principles
- Emulation without CTI is just creative pen testing
- Perfect malware clones are unnecessary — faithful behaviors matter
- Measurement of blue outcomes is the point, not red “wins”
- Re-run emulations after fixes to prove improvement
Verification
- Scenario is tied to documented threat intelligence
- TTPs are mapped to ATT&CK (or equivalent)
- Prevention/detection/response results are captured per step