Open-source alternatives to Havoc

OffensiveNim is a red teaming framework and post-exploitation toolkit developed in Nim. It provides a collection of low-level primitives and a Windows API wrapper designed for offensive security operations, including malware development and shellcode loading. The project focuses on evasion and obfuscation through techniques such as API unhooking, direct system calls, and anti-debugging mechanisms. It features diverse payload delivery methods, including reflective binary loading, the execution of .NET assemblies via CLR hosting, and various shellcode injection techniques using fibers, COM obje

This project is a curated collection of tools, scripts, and technical guides designed to enhance offensive security operations using Cobalt Strike. It serves as a resource hub for managing command and control infrastructure and deploying security engagements. The collection includes toolkits for evading endpoint detection and response systems, alongside libraries for automating red team tasks such as reconnaissance and host enumeration. It provides resources for developing post-exploitation frameworks, specifically focusing on the creation of reflective libraries and memory-resident code. Th

Empire is a post-exploitation command-and-control (C2) framework designed for red team operations. It deploys and manages agents written in PowerShell, Python, C#, Go, and C across Windows, Linux, and macOS, using encrypted communication channels over HTTP, HTTPS, and SMB. The framework executes over 400 built-in modules for reconnaissance, privilege escalation, credential theft, and lateral movement, and provides a modular engine for authoring custom attack modules. What sets Empire apart is its multi-language agent deployment system, which allows operators to choose implants that suit each

The framework is a comprehensive penetration testing platform designed for the development, testing, and execution of security exploits. It serves as a research toolkit and automated assessment environment, enabling security professionals to identify and validate vulnerabilities within networked systems and infrastructure through repeatable, standardized procedures. The platform distinguishes itself through a modular architecture that supports reflective payload injection, allowing for the execution of code directly in memory without writing to disk. It utilizes an asynchronous event loop to

Pupy is a command and control framework and post-exploitation suite used for remote administration and system management. It functions as a cross-platform tool for deploying payloads and controlling multiple remote agents through encrypted communication channels. The framework features a multi-platform payload generator that creates custom executable files using configurable network launchers. It employs a network traffic obfuscator that stacks encryption and obfuscation protocols to hide communication from observation. The system provides capabilities for in-memory code execution, remote pr

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

Maskphish is a comprehensive security toolkit that integrates capabilities for digital forensics, network vulnerability scanning, open-source intelligence, penetration testing, and social engineering. It functions as a multi-purpose framework for automating reconnaissance and executing security audits across diverse network environments. The project features a specialized phishing and social engineering toolkit used for cloning websites, masking URLs, and deploying deceptive pages to capture user credentials. It also includes a remote access Trojan builder for generating platform-specific exe

Sliver is a command and control framework designed for adversary emulation and security assessment operations. It provides a centralized platform for managing remote systems, enabling security professionals to coordinate multi-operator sessions and maintain persistent, secure communication channels across diverse network environments. The framework distinguishes itself through its focus on stealth and infrastructure flexibility. It utilizes dynamic payload obfuscation to generate unique binaries and supports in-memory execution to minimize disk artifacts. Communication is secured through mutu

fsociety is a penetration testing framework and security tool orchestrator designed to conduct full security audits. It functions as a wrapper that integrates external security binaries into a unified, menu-driven interface, providing a centralized system for command-line parameter mapping and execution. The project distinguishes itself by organizing specialized utilities into domain-specific collections for structured navigation. It automates the transition between different phases of an audit by chaining reconnaissance and exploitation tools through sequential workflow automation. The fram

OffensiveRust is a red team toolkit and malware development kit written in Rust. It serves as an evasion framework and post-exploitation library, providing a collection of offensive security primitives and a Windows API wrapper for interacting with low-level system functions and undocumented APIs. The project focuses on bypassing security software through direct system calls, memory obfuscation, and stealthy payload execution. It implements techniques to defeat static binary analysis via compile-time string encryption and payload obfuscation, while avoiding detection using parent process ID s

Empire is a post-exploitation framework and command and control server designed to manage remote access agents. It provides a centralized system for coordinating these agents and executing specialized scripts across target systems. The project functions as a security evasion tool by adapting network communication patterns to bypass firewalls and monitoring tools. It utilizes a multi-language agent runtime and a modular plugin architecture to execute payloads across different operating systems. The framework covers a broad range of operational capabilities, including remote agent orchestratio

Veil is a payload generation framework and a suite of tools designed to automate the creation of obfuscated binaries and encoded shellcode. It functions as an anti-virus evasion tool that transforms binary code to bypass security scanners and endpoint detection software. The framework utilizes multi-language payload generation, employing various programming language compilers to create executables that evade signature-based detection. It includes an evasive shellcode encoder to remove forbidden characters and apply obfuscation techniques to hide payload logic. The project covers the generati

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

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

Caldera is an adversary emulation platform and command and control framework designed to simulate cyber attack patterns. It functions as an automated red team tool and threat framework orchestrator, executing attack sequences based on standardized cybersecurity threat frameworks to validate security defenses and detection capabilities. The platform distinguishes itself through the dynamic compilation of customized executable payloads and the use of framework-mapped adversary modeling to structure attack techniques. It manages asynchronous agents on targeted endpoints via a central server acce

Viper is a command and control infrastructure manager and post-exploitation framework designed for adversary attack simulation and security assessment. It functions as an orchestrator for penetration testing, combining a system for managing compromised hosts across multiple operating systems with tools for security workflow automation. The platform is distinguished by its use of large language model agents to coordinate red team tasks, automate data processing, and provide intelligent decision support. It includes a network pivot visualizer that uses directional graphs to map relationships an

C3 (Custom Command and Control) is a tool that allows Red Teams to rapidly develop and utilise esoteric command and control channels (C2). It's a framework that extends other red team tooling, such as the commercial Cobalt Strike (CS) product via ExternalC2, which is supported at release. It…

A post exploitation framework designed to operate covertly on heavily monitored environments

An asynchronous, collaborative post-exploitation agent powered by Python and .NET's DLR

NimPlant - A light first-stage C2 implant written in Nim|Rust and Python

PoshC2 is a proxy aware C2 framework used to aid penetration testers with red teaming, post-exploitation and lateral movement.

Merlin is a cross-platform command and control framework and remote access tool. It provides a server and agent system for post-exploitation coordination, utilizing an HTTP/2 framework for secure communication and the execution of commands across multiple operating systems. The project features an in-memory code execution engine that runs assemblies and shellcode directly within a process to avoid writing files to disk. It implements a decentralized communication architecture through a peer-to-peer network, allowing agents to exchange data via direct bind or reverse connections. To evade det

This project is a post-exploitation framework and privilege escalation script suite designed to scan local system configurations for security gaps. It serves as a system enumeration toolset used to identify paths for gaining higher administrative privileges on a target host. The suite incorporates capabilities for security penetration testing and vulnerability assessment reporting. It uses shell-based system enumeration and pattern-based vulnerability matching to detect misconfigurations, while employing heuristic-based permission analysis to evaluate system flags. Findings are gathered thro

Pacu is an exploitation framework designed for auditing and testing the security of Amazon Web Services environments. It serves as a cloud penetration testing tool and resource enumerator used to identify misconfigurations, map attack surfaces, and execute privilege escalation paths. The framework provides specialized capabilities for post-exploitation and red team operations, including establishing persistence through identity and access management backdooring. It distinguishes itself with a plugin-based module system that allows for the development of custom tasks and the orchestration of A

Bjorn is a penetration testing framework that automates network scanning, credential brute-forcing, vulnerability assessment, and data exfiltration, all coordinated through an event-driven task pipeline and controlled via a web-based dashboard. Its modular plugin architecture allows independent security modules to be loaded and chained together, with an asynchronous network scanner discovering live hosts and open ports without blocking the main execution flow. The framework distinguishes itself by integrating a credential brute-force engine that systematically attempts login combinations agai

CrackMapExec is a network penetration testing framework and automated security scanner designed to assess security postures across large IP ranges. It functions as a multi-protocol security scanner and network protocol auditor used to identify vulnerabilities and misconfigurations. The tool provides capabilities for Active Directory auditing to enumerate users and permissions, as well as post-exploitation enumeration to gather system metadata and discover lateral movement paths. It includes a framework for credential spraying and harvesting across various network services. The system utilize