python TCP包注入方式

我就废话不多说了，大家还是直接看代码吧！

#! /usr/bin/env pythonimport socketimport struct def checksum(data): s = 0 n = len(data) % 2 for i in range(0, len(data)-n, 2): s+= ord(data[i]) + (ord(data[i+1]) << 8) if n: s+= ord(data[i+1]) while (s >> 16): s = (s & 0xFFFF) + (s >> 16) s = ~s & 0xffff return s class ip(): def __init__(self, source, destination): self.version = 4 self.ihl = 5 # Internet Header Length self.tos = 0 # Type of Service self.tl = 0 # total length will be filled by kernel self.id = 54321 self.flags = 0 # More fragments self.offset = 0 self.ttl = 255 self.protocol = socket.IPPROTO_TCP self.checksum = 0 # will be filled by kernel self.source = socket.inet_aton(source) self.destination = socket.inet_aton(destination) def pack(self): ver_ihl = (self.version << 4) + self.ihl flags_offset = (self.flags << 13) + self.offset ip_header = struct.pack('!BBHHHBBH4s4s', ver_ihl, self.tos, self.tl, self.id, flags_offset, self.ttl, self.protocol, self.checksum, self.source, self.destination) return ip_header class tcp(): def __init__(self, srcp, dstp): self.srcp = srcp self.dstp = dstp self.seqn = 0 self.ackn = 0 self.offset = 5 # Data offset: 5x4 = 20 bytes self.reserved = 0 self.urg = 0 self.ack = 0 self.psh = 1 self.rst = 0 self.syn = 0 self.fin = 0 self.window = socket.htons(5840) self.checksum = 0 self.urgp = 0 self.payload = '' def pack(self, source, destination): data_offset = (self.offset << 4) + 0 flags = self.fin + (self.syn << 1) + (self.rst << 2) + (self.psh << 3) + (self.ack << 4) + (self.urg << 5) tcp_header = struct.pack('!HHLLBBHHH', self.srcp, self.dstp, self.seqn, self.ackn, data_offset, flags, self.window, self.checksum, self.urgp) #pseudo header fields source_ip = source destination_ip = destination reserved = 0 protocol = socket.IPPROTO_TCP total_length = len(tcp_header) + len(self.payload) # Pseudo header psh = struct.pack('!4s4sBBH', source_ip, destination_ip, reserved, protocol, total_length) psh = psh + tcp_header + self.payload tcp_checksum = checksum(psh) tcp_header = struct.pack('!HHLLBBH', self.srcp, self.dstp, self.seqn, self.ackn, data_offset, flags, self.window) tcp_header+= struct.pack('H', tcp_checksum) + struct.pack('!H', self.urgp) return tcp_header def test(source,site,data):s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_RAW)src_host=sourcedest_host=socket.gethostbyname(site)# IP Headeripobj=ip(src_host,dest_host)iph=ipobj.pack()# TCP Headertcpobj=tcp(1234,80)tcpobj.data_length=len(data)tcph=tcpobj.pack(ipobj.source,ipobj.destination)# Injectionpacket=iph+tcph+datas.sendto(packet,(dest_host,80))s.close() if __name__ == ’__main__’:test('10.0.0.1','www.baidu.com','ITS TEST')

补充知识：python3 socket抓包

看代码吧！

import sockets=socket.socket(socket.AF_INET,socket.SOCK_RAW,socket.IPPROTO_TCP)while True:print(s.recvfrom(65565))

以上这篇python TCP包注入方式就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持好吧啦网。