def mutate(self, packets): broadcast = self.broadcast timer = self.timer result = [] #if fragmented or packets too short if utils.check_fragmentation(packets[0]) or len(packets)<2: return packets for i in range(0,len(packets)): forged = packets[i].copy() #del tcp payload forged.payload = utils.tcp_bad_payload(forged.payload, utils.NOPAYLOAD) #set fields forged.payload.seq += i*527600 forged.payload.flags = 'S' #broadcast address forged.dst = broadcast #set timer forged.timeout = timer #append packets result.append(packets[i]) result.append(forged) return result
def mutate(self, packets): numfrag = self.numfrag position = self.position #check there is enough fragments and if numfrag-1 is a fragment if utils.check_length(numfrag, packets) or not utils.check_fragmentation(packets[numfrag-1]): return packets forged = packets[numfrag-1].copy() forged = utils.ip_bad_payload(forged) if position == "after": packets.insert(numfrag, forged) else: packets.insert(numfrag-1, forged) return packets
def mutate(self, packets): BADMAC = self.BADMAC timer = self.timer #if packet is fragmented if utils.check_fragmentation(packets[0].payload): return packets #if SYN if utils.check_syn(packets[0].payload.payload): #create fake SYN forged_syn = packets[0].copy() forged_syn.dst=BADMAC forged_syn.payload.payload.flags = 'S' forged_syn.payload.payload.seq = 1000 forged_syn.payload.payload.ack = 0 #insert fake SYN packets.insert(0, forged_syn) #create fake SYN/ACK forged_synack = packets[0].copy() forged_synack.dst=BADMAC forged_synack.payload.payload.sport = packets[0].payload.payload.dport forged_synack.payload.payload.dport = packets[0].payload.payload.sport forged_synack.payload.payload.flags = 'SA' forged_synack.payload.payload.seq = 2000 forged_synack.payload.payload.ack = packets[0].payload.payload.seq + 1 forged_synack.payload.dst = packets[0].payload.src forged_synack.payload.src = packets[0].payload.dst #insert fake SYN/ACK packets.insert(1, forged_synack) #create fake ACK forged_ack = packets[0].copy() forged_ack.dst=BADMAC forged_ack.payload.payload.flags = 'A' forged_ack.payload.payload.seq = packets[1].payload.payload.ack forged_ack.payload.payload.ack = packets[1].payload.payload.seq + 1 #insert fake SYN/ACK packets.insert(2, forged_ack) #set timeout for real SYN packets[3].timeout = timer return packets
def mutate(self, packets): numfrag = self.numfrag bigsize = self.bigsize big_payload="" #check numfrag existence, and if it's a fragment if utils.check_length(numfrag, packets) or not utils.check_fragmentation(packets[numfrag-1]): return packets #create big payload and load it forged = packets[numfrag-1].copy() del(forged.payload) for i in range(bigsize): big_payload =big_payload + random.choice(string.ascii_letters) forged.add_payload(scapy.Raw(load=big_payload)) forged.flags = ip.FLAG_DF #insert big packet packets.insert(numfrag-1, forged) return packets
def mutate(self, packets): BADMAC = self.BADMAC timer = self.timer numframe = self.numframe #if packet is fragmented,SYN or ACK do nothing if utils.check_length(numframe, packets) or utils.check_syn(packets[numframe-1].payload.payload) or utils.check_ack(packets[numframe-1].payload.payload) or utils.check_fragmentation(packets[numframe-1].payload): return packets #create fake RST forged = packets[numframe-1].copy() forged.payload.payload = utils.tcp_bad_payload(forged.payload.payload, utils.NOPAYLOAD) forged.dst=BADMAC #set reset flag forged.payload.payload.flags = 'R' #insert fake RST packets.insert(numframe-1, forged) #append original packets.append(packets[numframe]) del(packets[numframe]) #create fake SYN forged_syn = packets[numframe-1].copy() forged_syn.dst=BADMAC forged_syn.timeout = timer forged_syn.payload.payload.flags = 'S' forged_syn.payload.payload.seq += 103245 forged_syn.payload.payload.ack = 0 #insert fake SYN packets.insert(numframe, forged_syn) #create fake SYN/ACK forged_synack = packets[numframe-1].copy() forged_synack.dst=BADMAC forged_synack.payload.payload.sport = packets[numframe].payload.payload.dport forged_synack.payload.payload.dport = packets[numframe].payload.payload.sport forged_synack.payload.payload.flags = 'SA' forged_synack.payload.payload.seq += 207654 forged_synack.payload.payload.ack = packets[numframe].payload.payload.seq + 1 forged_synack.payload.dst = packets[numframe].payload.src forged_synack.payload.src = packets[numframe].payload.dst #insert fake SYN/ACK packets.insert(numframe+1, forged_synack) #create fake ACK forged_ack = packets[numframe-1].copy() forged_ack.dst=BADMAC forged_ack.payload.payload.flags = 'A' forged_ack.payload.payload.seq = packets[numframe+1].payload.payload.ack forged_ack.payload.payload.ack = packets[numframe+1].payload.payload.seq + 1 #insert fake SYN/ACK packets.insert(numframe+2, forged_ack) #delete reset del(packets[numframe-1]) return packets
