Tools and automation¶
Purple teaming benefits from tooling that scales testing and accelerates improvement.
Attack simulation tools¶
Atomic Red Team: Pre-built tests for MITRE ATT&CK techniques. Easy to run, good for continuous validation.
Caldera: Automated adversary emulation. Chains techniques together, adapts to defences.
Infection Monkey: Network security testing. Simulates lateral movement and data exfiltration.
Metasploit/Cobalt Strike: Full-featured attack frameworks for sophisticated testing. Also see Cobaltstrike: Interoperability with the Metasploit Framework. And pricing is high!
Detection testing frameworks¶
SIGMA rules: Platform-agnostic detection rules convertible to SIEM-specific formats.
Detection engineering tooling: Version control for detection rules, automated testing, CI/CD pipelines.
Purple Team Automation (PurpleSharp): Simulates adversary TTPs and validates detection coverage.
VECTR: Purple team management platform tracking exercises, findings, and improvements.
Logging and SIEM¶
Centralised logging: Essential foundation. Can’t detect what you don’t log.
Log enrichment: Context that makes logs useful (user info, asset data, threat intelligence).
Correlation engines: Detect multi-stage attacks spanning multiple systems and time periods.
Alert management: Incident tracking, workflow management, case documentation.
Automation opportunities¶
Continuous validation: Scheduled automated tests verify detections still work after changes.
Detection deployment: Automatically deploy new detection rules across environments.
Alert enrichment: Automated context gathering when alerts fire (user history, asset risk, threat intel).
Response orchestration: SOAR platforms execute common response actions automatically.
Tool selection criteria¶
Start with purpose: What problem are you solving? Don’t buy tools looking for problems.
Integration requirements: Must work with existing SIEM, EDR (mere examples), and security stack.
Skill requirements: Do you have expertise to operate and maintain tool?
Cost vs. value: Expensive tools sitting unused provide no value.