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macchanger


šŸ§™ā€ā™‚ļø Introducing macchanger: Finally, a MAC Spoofing Tool That Works on Windows 11


Spoiler: Yes, we know the name’s been used before. No, we don’t care — this one actually works on modern Windows.


šŸ’” Why We Built It


During recent physical security engagements, we kept running into the same problem: MAC spoofing tools that just don't work on Windows 11. Either they would:

  • Crash on startup,

  • Throw cryptic driver errors,

  • Or worse — fail silently while we thought we were stealthy.


In the middle of a red team op, that's not just inconvenient — it's unacceptable.

So we built our own: a dead-simple, zero-dependency MAC address changer for Windows 11Ā that works consistently on both Intel and Realtek NICs. Whether you're automating part of your op or trying to blend in on-site, macchangerĀ has your back.


šŸŽÆ What's macchanger?


macchangerĀ is a Python-based MAC address spoofing tool that’s purpose-built for physical security teams, red teamers, and stealthy operatorsĀ who need a reliable, Windows-native solution.



You can use it via GUI or CLI, automate it in scripts, and revert your MAC address cleanly when you’re done.


🧰 Feature Rundown

  • āœ… Windows 11 CompatibleĀ (tested on 23H2 and up)

  • šŸ”„ Spoof or restoreĀ MAC addresses

  • šŸ’» GUI or CLI mode — your choice

  • ⚔ No dependencies — built with Python standard library only

  • šŸ§™ā€ā™‚ļø Minimalist by design — no drivers, no DLL hell

  • 🧹 OPSEC-aware — small, clean footprint


āŒ Why Not Use Existing Tools?


We tried. A lot of them.


But most existing tools are either:

  • Built for Linux and only half-ported to Windows,

  • Rely on outdated WinPcap/Npcap stacks that modern Windows 11 systems reject,

  • Or simply fail when handling adapter resets or specific chipsets.


We got tired of explaining to clients why our spoofing failed during a demo — so we stopped relying on other people’s tools.


šŸ–„ļø System Requirements

  • Windows 11

  • Python 3.6+

  • Administrator privileges


šŸš€ How To Use

šŸ”§ CLI Mode


You like typing commands. We get it.

# List interfaces
python macchanger.py -l

# Change MAC address to a specific value
python macchanger.py -i "Wi-Fi" -m 00112233AABB

# Use random MAC
python macchanger.py -i "Wi-Fi" -r

# Interactive interface selector
python macchanger.py -I

# Show help
python macchanger.py -h

šŸ–±ļø GUI Mode


Just run the script without arguments:

python macchanger.py

You'll get a lightweight, native GUI to:

  • View available interfaces

  • Pick your target NIC

  • Enter a custom MAC or generate a random one

  • Apply changes and reset when done


🧪 Tested Hardware

  • Windows 11 Pro (23H2+)

  • Intel onboard NICs

  • Realtek USB NICs


āš ļø Gotchas & Limitations

  • Requires Admin privileges (UAC prompt expected)

  • Interface resets briefly when changing MAC

  • Some USB Wi-Fi adapters don’t support spoofing (hardware-locked)

  • May require reboot to persist MAC changes on some systems


šŸ†˜ Troubleshooting Tips

  • Run as Administrator!

  • Use -lĀ or -IĀ to ensure you’re selecting the correct adapter

  • Try a different MAC if one fails — some drivers restrict vendor ranges

  • Reboot if the change doesn't appear to stick


šŸ‘®ā€ā™‚ļø Legal & Ethical Notice

This tool is intended for authorized security assessments only. Always obtain explicit permission before spoofing MAC addresses in a network environment.

If you're unsure whether you have legal clearance, you probably don’t — ask first.


šŸ“¬ Contact & Support

Author: Keith Pachulski

Company: Red Cell Security, LLC


If you find this tool useful in your red team ops, feel free to buy us a coffee or support future development.


šŸ“œ License

MIT License — free to use, modify, distribute. Attribution appreciated but not required.


🧩 Final Thoughts

Naming tools is hard. Making them work shouldn't be.


So here’s macchanger — no frills, no fancy marketing, just a solid, dependable MAC spoofing utility for Windows 11. If it saves you five minutes during an engagement, it’s done its job.


Happy hacking — ethically.


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© 2025 by Red Cell Security, LLC.

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