Viper

Viper is a red team and adversary simulation platform that exposes its capabilities as an MCP server, allowing Claude-compatible AI agents to interact with its built-in tooling through the Model Context Protocol. The platform integrates with Metasploit Framework and provides over 100 post-exploitation modules mapped to the MITRE ATT&CK framework, covering implant deployment on Windows, Linux, and macOS targets. Its MCP interface lets an LLM agent drive red team workflows programmatically, including automated 24/7 monitoring, pivot graph navigation, defense evasion techniques, and handler firewall configuration. Custom modules can be written in Python to extend coverage for specialized scenarios. A notable differentiator from commercial alternatives like Cobalt Strike (priced at $12,600 per user per year) is that Viper is free and includes built-in LLM agent support that none of its paid competitors offer. The primary audience is professional red teamers and penetration testers who want AI-assisted automation across multi-stage attack simulations.

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