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63 lines
1.6 KiB
63 lines
1.6 KiB
#!/usr/bin/env python3
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''' PortScan v3
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-----------
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This application scans for open ports on the designated system. It uses
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multiprocessing to speed up this process.
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'''
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import socket
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import subprocess
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import sys
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from datetime import datetime
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from multiprocessing import Pool
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def scan(port):
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try:
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sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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result = sock.connect_ex((target_ip, port))
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if result == 0:
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print("Port {}:\tOpen".format(port))
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sock.close()
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except socket.gaierror:
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print('Hostname could not be resolved.')
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sys.exit(0)
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except socket.error:
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print("Couldn't connect to server.")
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sys.exit(0)
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except:
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return
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if __name__ == '__main__':
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ports = list(range(1,4096))
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target = ''
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try:
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target = sys.argv[1]
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except:
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print("\nUsage:\t{} [target]\n\n\tScan for open ports on target machine.\n".format(sys.argv[0]))
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sys.exit(0)
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# Clear the screen
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subprocess.call('clear', shell=True)
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target_ip = socket.gethostbyname(target)
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# Print a nice banner with information on which host we are about to scan
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print("-" * 60)
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print("Please wait, scanning remote host", target_ip)
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print("-" * 60)
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# Check what time the scan started
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t1 = datetime.now()
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with Pool(processes = 8) as p:
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p.map(scan, ports)
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# Checking the time again
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t2 = datetime.now()
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# Calculates the difference of time, to see how long it took to run the script
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total = t2 - t1
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# Printing the information to screen
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print('Scanning Completed in: ', total)
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