🔐 Secure Section Mapping with Windows Native API

This project demonstrates how to securely create and map memory sections using native Windows APIs. The provided code showcases techniques for handling memory securely, verifying system library integrity, and modifying memory sections safely. These practices are essential for applications that interact with system internals, ensuring both security and efficiency. 🛡️

🚀 Features

• Dynamic Section Creation

  • Utilizes NtCreateSection to allocate a secure 2MB section of memory. 🧠

• Memory Mapping

  • Maps the created section into the process' virtual address space using NtMapViewOfSection. 📦

• Memory Integrity Check

  • Compares the first 0x1000 bytes of the original ntdll.dll with the newly mapped section to ensure the code is untampered. 🔍

• Safe Memory Modifications

  • Demonstrates secure modification by zeroing out the first 0x1000 bytes of the mapped section. 🔧

🔒 Security Measures

• API Resolution from Trusted Sources

  • All APIs (NtCreateSection, NtMapViewOfSection, NtClose) are dynamically resolved from ntdll.dll, ensuring that the functions used are the ones provided by the trusted system library. 📜

• Memory Integrity Validation

  • The program verifies the integrity of the memory by comparing the first page of ntdll.dll before and after mapping, preventing malicious alterations. 🛡️

• Memory Section Isolation

  • The created section is isolated and modified securely in a way that doesn't impact the original ntdll.dll in memory, ensuring safe modifications without system instability. ⚡

🛠️ Usage

1. Compile the code with any C++ compiler that supports Windows system calls.
2. Run the executable.
3. The code will:
   • Load ntdll.dll
   • Create and map a secure memory section
   • Compare the original and mapped ntdll.dll for integrity
   • Perform secure memory modification

📜 License

This code is provided under the MIT License. See the LICENSE file for more information.