The product
A library for integrating communication channels with the Cobalt Strike External C2 server.
ExternalC2 alternatives and competitors
ExternalC2 is a free Red-Team & Adversary Emulation solution. The closest matches by shared tags and NIST CSF 2.0 coverage are Fortra Cobalt Strike, GoSecure Titan® Adversarial Simulation, Core Security Cobalt Strike, Core Security Outflank Security Tooling, and Core Security Bundles and Suites. All 17 alternatives on this page are ranked the same way.
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VisitThe closest ExternalC2 alternatives
These 8 solutions overlap most with ExternalC2. Each row says what the product does and, when the overlap is big enough, which capabilities it shares.
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Fortra Cobalt Strike
FeaturedThreat emulation product for adversary simulations and red team operations
Red-Team & Adversary EmulationCommercialKey features: Post-exploitation payload (Beacon) with PowerShell execution, keylogging, screenshots, and file downloads, Malleable Command and Control (C2) language for network indicator customization, Browser pivoting for hijacking authenticated web sessions, System Profiler for target fingerprinting and reconnaissance, Shared team server for collaborative red team operations
All 17 products like ExternalC2
Threat emulation product for adversary simulations and red team operations
Human-led adversary emulation service testing detection & response capabilities
Post-exploitation threat emulation platform for red team operations.
Red team toolkit for EDR evasion, initial access, and post-exploitation.
Bundled offensive security suites combining pen testing, red teaming, and VM.
AI agent platform for automating offensive security operations and evals.
CLI cheatsheet for Red Specter's 30-tool offensive security platform.
Autonomous offensive security platform that finds, validates, and remediates attack paths.
Autonomous AI offensive cyber platform for sovereign-grade threat neutralization.
Red/purple team and identity security assessment service simulating real adversary attacks
Platform for offensive security operations including ASM, VA, and DAST
AI-powered continuous pentesting platform combining autonomous agents with human hackers.
Govt-focused cyber intelligence & surveillance software provider.
AI-assisted vulnerability research and advanced offensive cyber tooling firm.
Boutique security firm offering red team, OSINT, and adversary simulation services.
Boutique cybersecurity firm offering pentesting, consulting, and DFIR services.
Alternatives to each of these
Fortra Cobalt Strike alternativesGoSecure Titan® Adversarial Simulation alternativesCore Security Cobalt Strike alternativesCore Security Outflank Security Tooling alternativesCore Security Bundles and Suites alternativesDreadnode Offensive Security Agents alternativesRed Specter Cheatsheet alternativesA Security alternativesKinoSec Hades alternativesCrimson7 Offensive Engineering alternativesTrickest Attack Surface Management alternativesEthiack alternatives
Compare ExternalC2 with
ExternalC2 vs Fortra Cobalt StrikeExternalC2 vs GoSecure Titan® Adversarial SimulationExternalC2 vs Core Security Cobalt StrikeExternalC2 vs Core Security Outflank Security ToolingExternalC2 vs Core Security Bundles and SuitesExternalC2 vs Dreadnode Offensive Security AgentsExternalC2 vs Red Specter CheatsheetExternalC2 vs A Security
ExternalC2 Alternatives FAQ
Common questions when weighing alternatives to ExternalC2.
The closest matches to ExternalC2 by shared tags and NIST CSF 2.0 coverage are Fortra Cobalt Strike, GoSecure Titan® Adversarial Simulation, Core Security Cobalt Strike, Core Security Outflank Security Tooling, and Core Security Bundles and Suites. All of them are Red-Team & Adversary Emulation products.
This page shows 17 alternatives to ExternalC2, all in the Red-Team & Adversary Emulation category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first.
ExternalC2 is a free Red-Team & Adversary Emulation product. You can use it at no cost. Only commercial alternatives are listed here. Free and open source products are under /free.
ExternalC2 is a Red-Team & Adversary Emulation product in the Offensive Security category. You can compare it with the 17 other Red-Team & Adversary Emulation products on this page.
