python TCP包注入方式

Python  /  管理员 发布于 7年前   467

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。