Python TCP Port Scanner

A Simple Multithreaded Port Scanner built using Socket.

It was made to understand :

• TCP Connections.
• Network Scanning.
• Open and Closed ports.
• Services on each port.
• Socket Programming.
• Multithreading in Python.
• Service Detection.
• Banner Grabbing.
• Error Management
• Working with JSON files.
• Thread Lock

Features Include :

• Scan real-time custom port ranges.
• Can Scan all 65535 Ports.
• Proper Error Handling Included.
• Multithread support that provides fast results.
• Service Detection for all 65535 ports.
• Banner Grabbing for Open Ports.
• JSON Export of Open Ports.
• CSV Export of Open Ports.

Technologies Used :

• Python 3.14.2
• Socket Module
• Threading Module
• Sys Module
• Argparse Module
• Colorama Module
• JSON Module
• CSV Module

How it Works :

It first takes several inputs from the user, like an IP Address & Range of ports, i.e. Starting Port and Ending Port. Note: Supports IPv4 addresses only.

Then it attempts to connect on each port which is in the range from the Start Port to the End Port on the provided IP address.

• If Connection Succeeds -> Port {Number} is OPEN : {Service}
• If the connection fails -> Port is CLOSED

How to Use :

Step 1: Clone the Repository

$ git clone https://github.com/arshshukla99/Port_Scanner

Step 2: Navigate to the Project Folder

$ cd Port_Scanner

Step 3: Run the Script 'port_scanner.py'

$ python3 port_scanner.py -t 192.168.43.169 -s 1 -e 1000

Example Output

$ python3 port_scanner.py -t 192.168.43.169 -s 1 -e 1000
----------------------------------------------------------------------------------------------------
                                    Simple Port Scanner
----------------------------------------------------------------------------------------------------
Port 139 is OPEN : netbios-ssn
Port 135 is OPEN : epmap
Port 445 is OPEN : microsoft-ds
Port 623 is OPEN : asf-rmcp

Scan Performed in : 2.6426780223846436

Example Screenshot