Adversary Simulation & Purple Teaming
Adversary Simulation & Purple Teaming is the set of tools used to emulate real attacker techniques so blue teams can test and improve their detections. It covers atomic technique libraries, orchestrated adversary emulation, and command-and-control or exploitation frameworks run in authorized exercises. Tools here close the loop between offense and defense on systems you own or are explicitly authorized to test.
Sliver
Sliver is a free open-source command and control framework used to run adversary emulation and red team operations for authorized security testers.
Caldera
Caldera is a free automated adversary emulation platform used to run ATT&CK-based security tests for red teams and defenders validating their controls.
Atomic Red Team
Atomic Red Team is a free library of small ATT&CK-mapped tests used to validate detection and response coverage for blue teams and detection engineers.
Adversary Simulation & Purple TeamingFreeOpen source
Metasploit Framework
Open-source penetration testing framework from Rapid7 with exploits, payloads, auxiliaries and post-exploitation modules for authorised assessments.
Cobalt Strike
Commercial adversary-simulation platform for red teams, built around the Beacon post-exploitation agent and a shared team server.