Advanced C++ Port Scanner

A high-performance, multi-threaded port scanner built with C++ and Winsock2.

Features

• Fast Multi-threading: Scan thousands of ports in seconds using a configurable thread pool.
• Service Detection: Automatically identifies common services like HTTP, SSH, FTP, etc.
• Banner Grabbing: Retrieves identification strings from open ports.
• Interactive UI: Clean, colorized terminal interface with a progress bar.
• Customizable: Choose target IP, port ranges, and thread counts.

Prerequisites

To compile this project on Windows, you need a C++ compiler. Recommended options:

1. MinGW-w64: Provides g++. (Download from mingw-w64.org)
2. Visual Studio: Includes cl.exe. (Download Visual Studio Community)

How to Compile

Using MinGW (g++)

Open your terminal and run:

g++ port_scanner.cpp -o port_scanner.exe -lws2_32

Using Visual Studio (Developer Command Prompt)

cl /EHsc port_scanner.cpp /link ws2_32.lib

How to Use

1. Run the compiled port_scanner.exe.
2. Enter the target IP (e.g., 127.0.0.1 for local scan).
3. Enter the start and end port numbers (e.g., 1 to 1000).
4. Enter the number of threads (e.g., 100 for fast scanning).
5. Watch the progress bar and wait for results!

Example Output

Scanning 127.0.0.1...
[==================================================] 100% 

Scan Results for 127.0.0.1:
PORT      SERVICE        BANNER
--------------------------------------------------------
135       RPC            No banner
445       Microsoft-DS   No banner

Scan completed in 11.20 seconds.