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Empire

PowerShell and Python post-exploitation framework with modules for lateral movement and persistence.

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BSD-3-Clause★ 8000Source project only — not browser-runnable

External Tool

This open-source tool is maintained externally. View the source on GitHub to learn more or run it yourself.

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What's next with Empire?

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Use it free

Open the official tool or demo — no account needed.

Free

Self-host it

Run the open-source version on your own infrastructure.

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What is Empire?

Empire is an open-source post-exploitation and adversary emulation framework designed to aid Red Teams and Penetration Testers in simulating advanced persistent threat (APT) tactics. Its primary purpose is to provide a modular platform for executing commands, maintaining persistence, and testing defensive systems against real-world attack scenarios. Developed under the BSD-3-Clause license, Empire is widely used by cybersecurity professionals to identify vulnerabilities and strengthen organizational defenses. The tool addresses the challenge of understanding and mitigating sophisticated cyber threats by enabling users to replicate attacker behaviors in controlled environments. With over 5,300 stars on GitHub, it reflects its adoption as a critical tool in ethical hacking and security research.

How it works

Empire is a post-exploitation framework that allows Red Teams to execute commands, maintain access, and simulate adversary behavior on compromised systems. It is primarily used to test the effectiveness of defensive measures against advanced threats. The tool’s purpose is to bridge the gap between theoretical threat modeling and practical exploitation by providing a flexible platform for executing payloads, managing sessions, and analyzing system behavior. Empire supports module-based operations for tasks like credential harvesting, lateral movement, and privilege escalation. It integrates with PowerShell and Python for scripting, enabling automation of complex attack chains. Features include session management, command execution, and real-time interaction with compromised hosts.

How to use it

  1. 1Clone the repository from GitHub and install dependencies using Poetry or Docker. 2. Launch the Empire server via the command line, configuring the web interface for C2. 3. Load modules (e.g., `Invoke-ReflectivePEInjection`) to execute payloads on target systems. 4. Monitor sessions through the web interface or terminal to exfiltrate data or escalate privileges. Practical tips: Use the `Empire` CLI for rapid command execution, and leverage the wiki for module-specific syntax. Always test in isolated environments to avoid unintended network exposure.

What it can do

  • post-exploitation framework

Use cases

Assumptions and limitations

Assumptions

  • source: https://github.com/BC-SECURITY/Empire
  • license: BSD-3-Clause — free to use
  • privacy: Self-hosted — you control your data

Limitations

  • Offensive tool — authorized penetration testing and lab use only; unauthorized use is illegal.
  • Requires advanced technical knowledge for module customization
  • Limited GUI interface may hinder novice users
  • Dependent on PowerShell execution policies being configured
  • No built-in network traffic obfuscation features

Understanding the result

PowerShell and Python post-exploitation framework with modules for lateral movement and persistence.

Tool details

  • Clearly flagged when a network request is needed.
  • No account, no sign-up, and no tracking of your content.
  • Powered by (BSD-3-Clause).
Built with
(BC-SECURITY/Empire)
License
BSD-3-Clause
Runs locally
No — requires a network request
Verification
Not yet verified
Input
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Output
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Open-source source & license

Built with BC-SECURITY/Empire. OpenToolVault provides the discovery and browser interface while crediting the original project maintainers.

Built with
License
BSD-3-Clause
View source on GitHub

Open-source project

License: BSD-3-ClauseSource: this project

OpenToolVault is an independent directory. We are not affiliated with or endorsed by this project.

References

Frequently asked

How does Empire differ from traditional penetration testing tools?

Empire focuses on post-exploitation and adversary emulation, whereas tools like Metasploit prioritize exploit delivery. It emphasizes long-term persistence and behavior simulation, making it better suited for testing defensive resilience rather than initial compromise.

How does Empire handle command execution on target systems?

Empire uses PowerShell and Python payloads that leverage memory-resident execution to avoid disk-based artifacts. Commands are sent via a web server, with results returned through encrypted channels to evade network monitoring.

How do I execute a module to harvest credentials?

First, load the `Invoke-Mimikatz` module via the Empire CLI. Then, run the module against a compromised session to extract credentials. Use the `Export-Object` command to save the results for further analysis.

How does Empire compare to Cobalt Strike?

Empire is open-source and modular, while Cobalt Strike is proprietary with a more polished GUI. Empire offers greater flexibility for custom payloads but lacks Cobalt Strike’s built-in reporting and team server features. Both are used for post-exploitation but cater to different user preferences.

What should I do if Empire fails to establish a session?

Check firewall rules blocking the web server port (default 8080). Ensure PowerShell execution policies allow remote signed scripts. Verify the target system’s antivirus is not blocking the payload. Use the `Test-Connection` module to confirm network reachability.

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