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guibacellar
131 Stars 31 Forks GNU General Public License v3.0 19 Commits 2 Opened issues

Description

DNCI - Dot Net Code Injector

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DNCI - Dot Net Code Injector

DNCI allows the injection of .Net code (.exe or .dll) remotely in unmanaged processes in windows.

1. Project Structure

The project is structured in:

  • DNCI.Injector.Library - Injection library. Contains all injection components and logic;
  • DNCI.Injector.Runner - Command line utility for injection;
  • DNCIClrLoader - C++ MicroCode to Load the .NET assembly into memory;
  • InjectDemo.Console.ClassicNet - Demo Classic .Net Console Application to be injected;
  • InjectDemo.Console.DotNetCore - Demo .Net Core Console Application to be injected;
  • InjectDemo.Dll.ClassicNet - Demo Classic .Net DLL to be injected;

2. Documentation and Usage:

2.1. Command Line Utility Documentation

  • Parameters:
    • --help Show help information
    • --assemblyFile Target .NET Classic DLL File
    • --className The fully qualified type name of the managed assembly
    • --methodName The name of the managed method to execute. EX: EntryPoint (This method should be 'public static int')
    • --argument An optional argument to pass in to the managed function
    • --targetMode Injection Target Mode (BruteForce, PID, ProcessName)
    • --pid Target Process ID
    • --processName Target Process Name

Examples

Inject Classic .Net Console Application into Notepad++

This example used the InjectDemo.Console.ClassicNet .exe file. DNCI.Injector.Runner.exe --assemblyFile "\InjectDemo.Console.ClassicNet.exe" --className InjectDemo.Console.ClassicNet.Program --methodName EntryPoint --targetMode=processName --processName notepad++ --argument "OK BOY"

Inject Classic .Net Console Application into Process with ID 66

This example used the InjectDemo.Console.ClassicNet .exe file. DNCI.Injector.Runner.exe --assemblyFile "\InjectDemo.Console.ClassicNet.exe" --className InjectDemo.Console.ClassicNet.Program --methodName EntryPoint --targetMode=PID --pid 66 --argument "OK BOY"

Try to Inject Classic .Net Console Application into any Running Process

This example used the InjectDemo.Console.ClassicNet .exe file. DNCI.Injector.Runner.exe --assemblyFile "\InjectDemo.Console.ClassicNet.exe" --className InjectDemo.Console.ClassicNet.Program --methodName EntryPoint --targetMode=BruteForce --argument "OK BOY"

2.2. Injection Library Documentation

The injection library was designed to be used by any .Net program. In fact, the DNCI Command Line Utility do uses the DNCI Library it self.

  • Classes
    • Injector - Main injector componente;
    • InjectorConfiguration - Configuration model. Created to be an abstract model between the Injector and they consumers;
    • InjectorConfigurationBuilder - Fluent builder for the InjectionConfiguration model;
    • InjectorResult - Result model. Created to be an abstract model between the Injector and they consumers;
    • InjectorResultStatus - Enum with all possible injection status;

Building Parameters

Inject Classic .Net Console Application into Remote Process

Injector.Library.InjectorConfiguration config = Injector.Library.InjectorConfigurationBuilder
    .Instance()
    .InjectThisClrBinary(@"\InjectDemo.Console.ClassicNet.exe")
    .ClrClassName("InjectDemo.Console.ClassicNet.Program")
    .ClrMethodName("EntryPoint")
    .WithArguments("OK - It Works Baby")
    .InjectOnProcess("cmd") // Try to Inject on cmd process
    .InjectOnProcess("chrome") // Try to Inject on chrome process
    .InjectOnProcess("cmd.exe") // Try to Inject on cmd.exe process
    .InjectOnProcess("calc") // Try to Inject on calc process
    .InjectOnProcess("notepad++")  // Try to Inject on notepad++ process
    .Build();

Brute Force to Inject Classic .Net DLL Application into Any Available Process

Injector.Library.InjectorConfiguration config = Injector.Library.InjectorConfigurationBuilder
   .Instance()
   .InjectThisClrBinary(@"\InjectDemo.Dll.ClassicNet.dll")
   .ClrClassName("InjectDemo.Dll.ClassicNet.Class1")
   .ClrMethodName("EntryPoint")
   .WithArguments("OK - It Works Baby")
   .InjectWithBruteForce()
   .Build();

Running the Injector

// Create Injector Instance
DNCI.Injector.Library.Injector injector = new Library.Injector(configBuilderconfig);

// Execute the Injection List result = injector.Run();

// Print Injection Result on Console foreach (InjectorResult res in result) { Console.WriteLine(res); }

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