Open-source alternatives to Flightsim

Virtual Machine for Adversary Emulation and Threat Hunting

Atomic Red Team is an adversary simulation tool and detection validation suite designed to emulate attacker behaviors. It functions as a security control testing framework that uses a library of portable tests to verify if security monitoring and alerting systems correctly identify specific malicious techniques. The project serves as a MITRE ATT&CK emulation framework, mapping individual test executions to a standardized industry taxonomy of adversary behaviors. This mapping allows for the validation of security controls against the MITRE ATT&CK matrix to identify gaps in detection and respon

Apfell is a red teaming framework and command and control server designed for collaborative adversary simulation. It provides a centralized infrastructure to manage remote agents and distribute tasking across multiple operating systems using a message broker for real-time synchronization. The system functions as a distributed agent orchestrator, allowing teams to coordinate complex attack chains and synchronize container data. It features a multi-platform payload manager that enables the downloading and integration of custom agents and command profiles from remote repositories. The platform

Covenant is a .NET-based command and control framework designed for red team operations and adversary simulation. It serves as a collaborative platform for coordinating security assessments, managing remote implants, and executing tasks on compromised systems through a centralized server. The project is distinguished by its dynamic payload generator, which compiles and obfuscates executable binaries and scripts on the fly to bypass detection. It further separates itself through a collaborative environment that allows multiple authenticated operators to share a synchronized state, track operat

This project is a collection of technical resources, blueprints, and guides for building resilient and stealthy red team infrastructure. It provides a comprehensive framework for designing offensive security environments that resist detection and remain operational throughout security engagements. The repository distinguishes itself through detailed playbooks for adversary simulation and hardening manuals. It covers advanced obfuscation techniques such as domain fronting, the use of platform-as-a-service redirectors, and the leveraging of third-party content sites to inherit domain reputation

Empire is a command and control framework and post-exploitation toolkit used for network penetration testing. It serves as a centralized platform for coordinating remote agent communication and automating the delivery of security testing payloads to target systems. The project provides a suite of modules for host reconnaissance, lateral movement, and credential harvesting across corporate environments. It functions as a remote administration tool to maintain persistence and execute commands on compromised hosts. The framework incorporates capabilities for agent orchestration and the executio

TTPForge is a cyber attack simulation platform designed and built by Sam Manzer (@d3sch41n), Alek Straumann (@CrimsonK1ng), and Geoff Pamerleau (@Sy14r), and including subsequent contributions from many good folks in Meta’s Red, Blue, and Purple security teams. Jayson Grace (@l50) migrated the…

Automated Attack Simulation in the Cloud, complete with detection use cases.

Monkey is an adversary emulation platform and breach and attack simulation tool designed to test network defenses through automated lateral movement and exploit delivery. It functions as a network security testing system that evaluates security posture by attempting to propagate through vulnerabilities and extract sensitive system credentials. The platform distinguishes itself by simulating specific real-world attacker behaviors, such as ransomware encryption, cryptojacking, and the theft of browser-stored credentials and secure shell keys. It utilizes binary hash randomization to evade antiv

Triton is a dynamic binary analysis framework designed to automate reverse engineering. It functions as a multi-architecture CPU emulator, an SMT-based symbolic execution engine, and a dynamic taint analysis tool. The framework translates raw machine instructions into abstract syntax trees, allowing it to represent binary program logic as a structured intermediate representation. This allows the system to map multiple hardware instruction sets to a single analysis framework and translate machine instructions into mathematical formulas for solving constraints. Its capabilities cover the simul

Automated Tactics Techniques & Procedures

CACTUSTORCH: Payload Generation for Adversary Simulations

Payload Generation Framework

RESTler is the first stateful REST API fuzzing tool for automatically testing cloud services through their REST APIs and finding security and reliability bugs in these services.