Instead of Infection Monkey
Infection Monkey alternatives
Infection Monkey is a free, open-source breach and attack simulation tool for examining resilience after perimeter breaches and internal server infection. Its Monkey Agent scans and simulates attack techniques, while Monkey Island Server provides the control interface. The platform maps visible machines, accessible services, and possible propagation routes, then reports issues agents discover or exploit. Plugins extend its functions, AWS Systems Manager can run it on EC2 instances, and it supports on-premises environments, containers, and public or private clouds. Encrypted credentials, HTTPS agent connections, and safeguards against damaging exploits support controlled operation.
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Atomic Red Team
Free plan APILinuxMac+1Focused, ATT&CK-mapped security-control tests — Atomic Red Team provides small structured tests, remote PowerShell execution, automation APIs, and weekly unattended runs instead of network propagation mapping.
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AttackIQ Platform
Free plan APILinuxMac+3Enterprise control validation and attack-path governance — AttackIQ adds agentless exposure validation, multi-stage orchestration, centralized governance, detection-rule management, and ticketing integrations beyond Infection Monkey's agent-based simulations.
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MITRE Caldera
Free plan APILinuxMac+2Open-source adversary emulation and red-team research — Caldera automates ATT&CK-based adversary emulation through asynchronous command-and-control, REST APIs, a web interface, and plugins including industrial protocols.
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OpenAEV
Free plan APILinuxSelf-hosted+1Threat-led simulations and crisis exercises — OpenAEV combines threat-intelligence-driven attack paths with autonomous chaining, tabletop crisis exercises, exposure scoring, and more than 30 integrations.
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FourCore ATTACK
Paid LinuxSelf-hostedWeb+1Continuous control validation with detection tuning — FourCore ATTACK links simulated behavior to telemetry and alerts, tests endpoint through exfiltration controls, and generates detection-rule changes for retesting.
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Pentera Platform
Paid APILinuxSelf-hosted+2Validated exposure remediation across hybrid environments — Pentera covers internal, external, and cloud attack surfaces, prioritizes remediation, and offers guardrails, AI analysis, and retesting beyond Infection Monkey's scope.
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Stratus Red Team
Free plan APILinuxMac+2Granular offensive testing in live cloud environments — Stratus Red Team targets individual cloud techniques across AWS, Azure, GCP, Kubernetes, EKS, and Entra ID, with automated setup, rollback, and cleanup.
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PurpleSharp
Free plan Self-hostedWindows - 9
Google Cloud Secret Manager
Free plan Web - 10
Picus Security Platform
Free trial APILinuxMac+3 - 11
Cymulate Platform
Free trial Web - 12
SCYTHE
Free trial LinuxSelf-hostedWeb+1 - 13
Valitrix BAS Platform
Free trial APILinuxMac+1 - 14
SafeBreach Validate
Paid APILinuxMac+3 - 15
BlackNoise BAS
Paid Self-hostedWeb - 16
Skyhawk Security BAS
Free trial APIWeb - 17
Cymrix
Paid - 18
Keysight Threat Simulator
Paid LinuxWeb - 19
ShadowBreach
Paid
An alternative may fit better when you need focused detection tests, ATT&CK-mapped adversary emulation, cloud-specific techniques, crisis exercises, or broader remediation workflows. Infection Monkey uses agent-based simulations, a hybrid deployment, and a documented x86-64 Monkey Island setup on Linux or Windows. When switching, weigh execution style, supported environments, attack-scenario depth, reporting, integrations, safety controls, and operational ownership. Free choices include Atomic Red Team, Caldera, and Stratus Red Team; AttackIQ, FourCore ATTACK, and Pentera require pricing requests, while OpenAEV combines a free plan with a 30-day trial.
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