port2scan.py

#!/usr/bin/env python3

from scapy.all import *
import sys
import os

def banner():
    os.system('clear')
    print("                  _   _____")
    print("                 | | / __  |")
    print(" _ __   ___  _ __| |_   / / ___  ___ __ _ _ __")
    print("|  _ \ / _ \|  __| __| / / / __|/ __/ _  |  _ ")
    print("| |_) | (_) | |  | |_./ /__\__ \ (_| (_| | | | |")
    print("|  __/ \___/|_|   \__\_____/___/\___\__ _|_| |_|")
    print("| |                                             ")
    print("|_|\n")
    print ("+------------------------------------------------------------------------------------------------------------------+")
    print ("| Author: glyph                                                                                                    |")
    print ("| Title: port2scan.py                                                                                              |") 
    print ("| Creation Date: 08/10/2019                                                                                        |")
    print ("| Version Control: 1.0                                                                                             |") 
    print ("| Description: Quick and dirty Active TCP Scanner.                                                                 |")
    print ("| Usage: " + sys.argv[0] + " <host> [<ports seperated by spaces>]\t\t                                              |")
    print ("| Example: " + sys.argv[0] + " 192.168.1.1 80 443                                                               |")
    print ("+------------------------------------------------------------------------------------------------------------------+")

def tcpScan(ports):
    print (f"Scanning: {sys.argv[1]}")
    try:
        for port in ports:
            p = sr1(IP(dst=sys.argv[1])/TCP(sport=RandShort(),dport=int(port),flags="S"),verbose=False, timeout=3)
            try:
                if p.getlayer(TCP).flags == "SA":
                    print (f"[+] {port} Open")
                elif p.getlayer(TCP).flags == "R":
                    print ("[+] {port} Filtered")
            except AttributeError:
                print (f"[+] {port} Closed")
    except socket.gaierror:
        pass

def main():
    ports = []
    for args in range(len(sys.argv)):
        ports.append(sys.argv[args])
    tcpScan(ports[2:])

if __name__=='__main__':
    if len(sys.argv) < 3:
        print (f"\nUsage: {sys.argv[0]} <host> <[ports seperated by spaces]>")
        print (f"Example: {sys.argv[0]} 192.168.1.1 80 443")
    else:
        banner()
        main()