Port scan

파이썬으로 원하는 패턴을 생성

 

모듈 : scapy
패킷 / 프레임 생성기능을 갖고 있다
IP() / Ether() >>> 객체 생성됨

 

import scapy from scapy.all import srp, Ether, ARP, conf

srp() : 메서드 : send() ~> 생성된 패킷을 전달하고 응답을 수신한다.

 

Ether() : 인스턴스 ~> 생성된 프레임을 전달하고 응답을 수신한다.

 

(패킷(프레임)) >>> srp()/Ether() >>> srp(Ether())

 

ARP() : 인스턴스 ~> arp 패킷 생성(필수인자) ~> L3 : Dst.ip
                                                                              L2 : Dst.mac(MC, BC)

 

ICMP() : 인스턴스 ~> icmp 패킷 생성

---

from scapy.all import srp, Ether, ARP, conf

print("NI 예시 : 192.168.0.0/24")
net = input("탐색할 NI를 적어주세요 : ")
conf.verb = 0      # arp type 0 / sub type 8  >>> BC
ans, uans = srp(Ether(dst="ff:ff:ff:ff:ff:ff")/ARP(pdst=net), timeout=2)
#srp(Ether()) >>> 응답 >>> tuple

print("시작")
for snd, rcv in ans:
    print(rcv.sprintf(r"MAC : %Ether.src%   &   IP : %ARP.psrc%"))
print("종료")

---

import socket
import time
import threading


ip = input("스캔 대상 IP입력 : ")
s_port = int(input("시작 포트번호 : "))
d_port = int(input("종료 포트번호 : "))
threads = []
open_port = []

def port():
    try:
        port_scanner = socket.socket()
        port_scanner.connect((ip,s_port))
        receive = port_scanner.recv(99999)
        
        if receive:
            open_port.append("port : " + str(s_port) + " [open] : " + str(receive))
            
        #elif receive == 'b' or '':
           #print("port :" + str(s_port) + " [close]: port close")
            #port_scanner.close()


    except Exception as err:
        print("port : " + str(s_port) + " [close] : port close") 

    finally:
        port_scanner.close()
    


for i in range(s_port, d_port + 1):
    t = threading.Thread(target=port)
    threads.append(t)

for t in threads:
    t.start()
    time.sleep(0.01)
    s_port += 1
    if s_port == d_port + 1:
        pass

for t in threads:
    t.join()

for i in open_port: 
    print(i)

print("End")

: thread 추가

---

import socket
import time
import threading


ip = input("스캔 대상 IP입력 : ")
s_port = int(input("시작 포트번호 : "))
d_port = int(input("종료 포트번호 : "))
threads = []
open_port = []

def port():
    try:
        port_scanner = socket.socket()
        port_scanner.connect((ip, s_port))
        receive = port_scanner.recv(99999)

        if receive:
            open_port.append("\033[34m port\033[0m : " + str(s_port) + "    \033[91m [open] : \033[0m" + str(receive))
            print("\033[34m port\033[0m : " + str(s_port) + "    \033[91m [open] : \033[0m" + str(receive))
            
        #elif receive == 'b' or '':
           #print("port :" + str(s_port) + " [close]: port close")
            #port_scanner.close()


    except Exception as err:
        print("\033[34m port \033[0m: " + str(s_port) + "   \033[30m [close] \033[0m: port close")

    finally:
        port_scanner.close()
    


for i in range(s_port, d_port + 1):
    t = threading.Thread(target=port)
    threads.append(t)

for t in threads:
    t.start()
    time.sleep(0.01)
    s_port += 1
    if s_port == d_port:
        pass

for t in threads:
    t.join()

print("\n\n open ports")

for i in open_port: 
    print(i)

print("End")