Best Libnet Alternatives & Competitors in 2026

Impacket

A Python library for working with network protocols

Trickest Attack Surface Management

Platform for offensive security operations including ASM, VA, and DAST

Fortra Cobalt Strike

Threat emulation tool for adversary simulations and red team operations

GoSecure Titan® Adversarial Simulation

Human-led adversary emulation service testing detection & response capabilities

Core Security Cobalt Strike

Post-exploitation threat emulation platform for red team operations.

Core Security Outflank Security Tooling

Red team toolkit for EDR evasion, initial access, and post-exploitation.

Core Security Bundles and Suites

Bundled offensive security suites combining pen testing, red teaming, and VM.

Dreadnode Offensive Security Agents

AI agent platform for automating offensive security operations and evals.

Ethiack

AI-powered continuous pentesting platform combining autonomous agents with human hackers.

NSO Group

Govt-focused cyber intelligence & surveillance software provider.

REDLattice

AI-assisted vulnerability research and advanced offensive cyber tooling firm.

Feisty Fox Security

Boutique security firm offering red team, OSINT, and adversary simulation services.

Red Specter Cheatsheet

CLI cheatsheet for Red Specter's 30-tool offensive security platform.

Asgard Cyber Security

Boutique cybersecurity firm offering pentesting, consulting, and DFIR services.

A Security

Autonomous offensive security platform that finds, validates, and remediates attack paths.

KinoSec Hades

Autonomous AI offensive cyber platform for sovereign-grade threat neutralization.

HexStrike AI MCP Agents

MCP server enabling AI agents to autonomously run 150+ security tools

Cobalt Strike's ExternalC2 framework

A specification/framework for extending default C2 communication channels in Cobalt Strike

CAI (Cybersecurity AI)

An open-source framework that enables building and deploying AI security tools

GraphSpy

GraphSpy is a browser-based post-exploitation tool for Azure Active Directory and Office 365 environments that enables token management, reconnaissance, and interaction with Microsoft 365 services.

Havoc Framework

Open-source C2 framework for red team ops and adversary simulation.

MITRE Caldera™

MITRE Caldera™ is an automated adversary emulation platform built on the MITRE ATT&CK framework that supports red team operations and incident response activities through a modular C2 server and plugin architecture.

WebDAV Covert Channel

A covert channel technique that uses WebDAV protocol features to deliver malicious payloads and establish C2 communication while bypassing security controls.

pybof

PyBOF is a Python library that enables in-memory loading and execution of Beacon Object Files (BOFs) with support for argument passing and function targeting.

xargs

A command that builds and executes command lines from standard input, allowing for the execution of commands with multiple arguments.

AggressiveProxy

Tool for enumerating proxy configurations and generating CobaltStrike-compatible shellcode.

Seatbelt

Comprehensive host-survey tool for security checks in C#.

SharpEDRChecker

SharpEDRChecker scans system components to detect security products and tools.

Kali

Kali Linux is a specialized Linux distribution for cybersecurity professionals, focusing on penetration testing and security auditing.

RedELK

RedELK is a SIEM tool designed for red teams to monitor and receive alerts about blue team detection activities during penetration testing engagements.

RedEye

RedEye is a visual analytic tool that provides enhanced situational awareness and operational insights for both Red and Blue Team cybersecurity operations.

AzureC2Relay

An Azure Function that validates and relays Cobalt Strike beacon traffic based on Malleable C2 profile authentication.

Brute Ratel C4

Advanced command and control tool for red teaming and adversary simulation with extensive features and evasion capabilities.

C2concealer

A command line tool that generates randomized malleable C2 profiles for Cobalt Strike to vary command and control communication patterns.

C3

C3 is a framework by WithSecureLabs for rapid prototyping of custom command and control channels that integrates with existing offensive security toolkits.

Chameleon

Chameleon aids in evading proxy categorization to bypass internet filters.

Charlotte

Charlotte is an undetected C++ shellcode launcher for executing shellcode with stealth.

CobaltBus

CobaltBus integrates Cobalt Strike with Azure Service Bus to create covert C2 communication channels for red team operations.

Covenant

Covenant is a collaborative .NET command and control framework designed for red team operations and offensive security engagements.

CrossC2

CrossC2 is a cross-platform payload generator that extends CobaltStrike's capabilities to Linux and macOS environments for red team operations.

Darkarmour

Darkarmour is an open-source Windows antivirus evasion framework that enables security professionals to bypass antivirus detection through customizable obfuscation and anti-analysis techniques.

Dendrobate

A managed code hooking template for .NET assemblies, enabling API hooking, code injection, and runtime manipulation.

Domain Hunter

A reconnaissance tool that analyzes expired domains for categorization, reputation, and Archive.org history to identify candidates suitable for phishing and C2 operations.

Donut

A shellcode generator that creates position-independent code for loading and executing .NET Assemblies, PE files, and Windows payloads from memory.

EvilClippy

EvilClippy is a cross-platform tool that creates malicious MS Office documents with hidden VBA macros and evasion techniques for penetration testing and red team operations.

Evilginx2

A standalone man-in-the-middle attack framework used for phishing login credentials and bypassing 2-factor authentication.

GadgetToJScript

A tool that generates .NET serialized gadgets for triggering assembly load and execution through BinaryFormatter deserialization in JavaScript, VBScript, and VBA scripts.

Inceptor

A template-driven framework for creating custom evasion techniques to test Anti-Virus and EDR detection capabilities.