VIPER
A red-team adversary-simulation platform covering the phases of the MITRE ATT&CK framework, with a built-in LLM agent for automated processing and decision support.
VIPER integrates the core tools and functionality needed for adversary simulation and red-team operations, intended to help complete cybersecurity assessment tasks. It provides a user-friendly interface for starting assessments quickly across Windows, Linux and macOS targets.
It is designed to cover all phases of the MITRE ATT&CK framework, with more than 100 built-in post-exploitation modules, Python-based custom module development, anti-tracing and handler-firewall defense evasion, a pivot graph, and automated notifications for continuous monitoring.
A comparison table in the material sets it against Cobalt Strike, NightHawk and BruteRatel: unlike the other three, it is listed as free and as the only one of the four with a built-in LLM agent, while matching them on a visual UI and pivot-graph support.