OPFORGE Rebrand Checklist for Mimikatz

This step-by-step guide simplifies the process of rebranding Mimikatz under the OPFORGE project. Use it to create a portfolio-grade build aligned with Threat Emulation, Detection Engineering, and Explainable AI objectives.

Maintainer: Alfredo Pelaez
Date: 2025-05-31
Project Alignment: OPFORGE | High-Yield Performance & Results (H.Y.P.R.) Mindset

✅ Phase 1: Clone and Prepare the Repo

  1. Clone the Mimikatz repository:

    git clone --recursive https://github.com/gentilkiwi/mimikatz.git Tools/mimikatz

  2. Create a backup copy:

    cp -r Tools/mimikatz Tools/mimikatz-original

  3. Prepare script path and workspace:

    New-Item -Path "C:\OPFORGE\Scripts" -ItemType Directory -Force

✅ Phase 2: Automated Rebranding via PowerShell

  1. Run the global text replacement:

    $root = "C:\OPFORGE\Tools\mimikatz"
Get-ChildItem -Path $root -Recurse -File | ForEach-Object {
    (Get-Content $_.FullName) `
        -replace "mimikatz", "opforge" `
        -replace "Mimikatz", "OPFORGE" `
        -replace "MIMIKATZ", "OPFORGE" `
        -replace "gentilkiwi", "opforge" `
        -replace "Benjamin", "Alfredo" `
        -replace "Delpy", "Pelaez" `
        -replace "[email protected]", "[email protected]" `
        | Set-Content $_.FullName
}

  2. Rename key project files/folders:

    Rename-Item "$root\mimikatz.sln" "opforge.sln"
Rename-Item "$root\mimikatz" "opforge"

  3. Patch the solution file:

    (Get-Content "$root\opforge.sln") `
    -replace "mimikatz.vcxproj", "opforge.vcxproj" `
    | Set-Content "$root\opforge.sln"

✅ Phase 3: Branding Customization

  1. Update terminal banner in opforge.c:

    kprintf(L"\n  OPFORGE Toolkit v1.0 | Threat Emulation | Detection Engineering | XAI\n");
kprintf(L"  H.Y.P.R. Mindset | https://opforge.dev | Maintainer: Alfredo Pelaez\n\n");

  2. Modify the shell prompt:

    kprintf(L"\nopforge # ");

  3. Optionally update:

    • Version macros
    • about module text
    • License headers

✅ Phase 4: Build and Debug

  1. Open the solution in Visual Studio 2022.

  2. Retarget the solution:

    • Right-click the solution → Retarget Projects → Select your installed toolset

  3. Set the startup project to opforge, build for x64 | Release.

  4. Troubleshoot build errors:

    • Resolve missing exports like kdbg_mimikatz
    • Patch unresolved symbols
    • Update the .def file to match your rebranded entry points

✅ Phase 5: Validation and Use

  1. Run the final binary:

    .\x64\opforge.exe

  2. Confirm output:

    • ASCII art and terminal header are updated
    • Interactive prompt shows opforge #
    • All commands execute without errors

  3. Version control:

    git add .
git commit -m "Apply OPFORGE rebranding to Mimikatz base"
git push origin opforge-main

🧠 Future Improvements

  • Rename command strings via macro (L"sekurlsa" → OPF_SEKURLSA) and refactor source
  • Customize internal module help text
  • Build .msi or .zip for OPFORGE deployment
  • Integrate telemetry or logging for operator feedback (in lab only)

End of Checklist
This post is part of the OPFORGE project series on Threat Emulation and AI-Enhanced Detection Engineering.