🛡️ Python Network & Vulnerability Scanner (PyScan)

A custom-built, comprehensive network scanning tool developed in Python. This utility combines multiple network security techniques to provide a detailed view of active hosts and their potential security weaknesses on a local subnet.

Key Features

• Layer 2 Device Discovery (ARP): Efficiently identifies all active hosts within a specified subnet range.
• TCP Port Scanning: Checks for common open ports to identify running network services.
• Banner Grabbing: Extracts service version information from open ports (e.g., SSH, HTTP, POP3).
• Basic Vulnerability Flagging: Performs simple version checks against known vulnerabilities (e.g., outdated OpenSSH, old Apache versions).

Technologies Used

• Language: Python 3
• Libraries: scapy, socket, time

Installation and Setup

1. Clone the Repository:

   git clone [https://github.com/Manavsoniqwq/Python-Network-Scanner.git](https://github.com/Manavsoniqwq/Python-Network-Scanner.git)
   cd Python-Network-Scanner
   

2. Install Dependencies (Requires root/admin privileges for scapy):

pip install scapy
# Note: Windows users must also install Npcap driver for Layer 2 scanning.

Usage

Run the script and provide your local network's CIDR range (e.g., 192.168.1.1/24):
```Bash
scanner.py