This project is a remote client application capable of executing various commands such as capturing keystrokes, taking screenshots, gathering system information, reconnecting to the server, and self-destructing. The client is designed to work on both Windows and Linux systems and communicates with a server through socket connections.

This software is for educational purposes only. Unauthorized use of this software for malicious purposes is illegal and unethical. Always obtain permission before deploying it in any environment.

• Prerequisites
• Compilation Instructions
• Running the Program
• Setting Up the Server
• Available Commands
• Implementation Details
• Troubleshooting
• Security Disclaimer
• License

• MinGW: Minimalist GNU for Windows. Download and install from MinGW website.
• OpenSSL: Download and install from OpenSSL for Windows. Ensure the bin and lib folders of OpenSSL are added to your PATH environment variable.

• GCC: GNU Compiler Collection
• OpenSSL: OpenSSL library for encryption
• Install them using the command:

  sudo apt-get update
  sudo apt-get install gcc libssl-dev
  
  # Compilation Instructions
  

To compile the client code, follow the instructions below based on your operating system.

1. Install MinGW and OpenSSL:

   • Ensure MinGW is installed and added to your system's PATH.
   • OpenSSL should also be installed, with bin and lib folders added to your PATH.

2. Open Command Prompt or PowerShell:

   • Use Win + R, type cmd or powershell, and hit Enter.

3. Navigate to the Source Code Directory:

   • Use the cd command to move to the folder containing the source code:

     cd path\to\your\source\code

4. Compile the Source Code:

   • Run the following command:

     gcc -o client.exe your_code.c -lws2_32 -lssl -lcrypto

   • -lws2_32: Links the Winsock library needed for socket programming.
   • -lssl and -lcrypto: Links the OpenSSL libraries.

5. Output:

   • If successful, an executable named client.exe will be created in the current directory.

1. Open a Terminal:

   • You can use Ctrl + Alt + T to open a terminal window.

2. Navigate to the Source Code Directory:

   • Use the cd command to move to the folder containing your source code:

     cd /path/to/your/source/code

3. Compile the Source Code:

   • Run the following command:

     gcc -o client your_code.c -lssl -lcrypto -lpthread

   • -lssl and -lcrypto: Links the OpenSSL libraries.
   • -lpthread: Links the pthread library for threading support.

4. Output:

   • If successful, an executable named client will be created in the current directory.

• After compiling, you should have an executable named client.exe.
• Run the program:

  client.exe
  

• After compiling, you should have an executable named ./client.
• Run the program:

  ./client
  

This client connects to a server that listens on 127.0.0.1 (localhost) and port 4444 by default. Below is a simple example of a Python server you can use:

import socket

server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind(('127.0.0.1', 4444))  # IP and PORT must match the client
server.listen(1)

print("Server listening on port 4444...")

client_socket, addr = server.accept()
print(f"Connection from {addr}")

while True:
    command = input("Enter command for client: ")
    client_socket.send(command.encode())
    if command == "exit":
        break

server.close()