CrimsonTools

CrimsonTools is an advanced offensive security toolkit designed to help Ethical Hackers, Red Teams, and Purple Teams bypass modern antivirus and EDR solutions seamlessly. By automating and simplifying evasion techniques, it allows professionals to focus on actual exploitation and high‑value objectives rather than wasting time on complex security bypassing. Additionally, CrimsonTools includes a locker module that enables safe, controlled simulations of ransomware attacks to validate detection, response and recovery procedures.

Features
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Key Features & Capabilities

Malleable Builders (Loader, Packer, Locker)

Generate customizable loaders, packers, and controlled ransomware samples to adapt to various operational contexts and simulation needs.

Multiple Injection Techniques

Implement various process injection methods to adapt to different defensive configurations.

Flexible API Call Systems

Switch between classic kernel32/ntdll calls and indirect syscalls to bypass advanced hooks.

AMSI & ETW Bypass

Leverage multiple built-in methods to bypass Windows AMSI and ETW protections seamlessly.

Guardrails Implementation

Integrate different guardrail mechanisms to limit payload execution to specific environments.

Metadata Customization

Fully customize binary metadata to reduce static detection and improve operational flexibility.

Multiple Output Formats

Export payloads in various formats to fit different delivery scenarios and execution vectors.

Targeted AV/EDR Bypass Profiles

Utilize profiles with pre-defined options to optimize bypass for specific AV/EDR products.

GUI Themes & Customization

Switch between several GUI themes or create your own fully customized style for the interface.

GUI Themes & Customization

Discover CrimsonTools modern and sleek GUI, designed to be fully customizable. Switch between multiple built-in themes or create your own to match your style and workflow. Enhance your offensive operations experience with a refined, intuitive interface.

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GUI Theme 2
GUI Theme 3

Malleable Loader Showcase

Discover the powerful loader builder included in CrimsonTools. Easily customize your loader behavior to adapt to different environments, increase stealth, and ensure smooth payload delivery.

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Malleable Packer Showcase

Explore how the malleable packer feature helps you obfuscate and pack your payloads to avoid detection, control execution flow, and maximize operational success.

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Malleable Locker Showcase

See how the customizable locker module can generate controlled ransomware-like simulations to test your defensive controls and incident response procedures in a safe environment.

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Ready to elevate your offensive operations?

Empower your team with advanced, stealthy, and fully customizable tools. Take your simulations and engagements to the next level with CrimsonTools.

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