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- import logging
- import random as rnd
- import scapy.layers.inet as inet
- from scapy.layers.smb import *
- import Attack.AttackParameters as atkParam
- import Attack.BaseAttack as BaseAttack
- import ID2TLib.SMB2 as SMB2
- import ID2TLib.SMBLib as SMBLib
- import ID2TLib.Utility as Util
- logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
- class SMBScanAttack(BaseAttack.BaseAttack):
- def __init__(self):
- """
- Creates a new instance of the SMBScanAttack.
- This Attack injects TCP Syn Requests to the port 445 of several ips and related response into the output
- pcap file.
- If port 445 is open, it will simulate and inject the SMB Protocol Negotiation too.
- """
-
- super(SMBScanAttack, self).__init__("SmbScan Attack", "Injects an SMB scan",
- "Scanning/Probing")
- self.host_os = Util.get_rnd_os()
-
- self.supported_params.update({
- atkParam.Parameter.IP_SOURCE: atkParam.ParameterTypes.TYPE_IP_ADDRESS,
- atkParam.Parameter.IP_DESTINATION: atkParam.ParameterTypes.TYPE_IP_ADDRESS,
- atkParam.Parameter.PORT_SOURCE: atkParam.ParameterTypes.TYPE_PORT,
- atkParam.Parameter.MAC_SOURCE: atkParam.ParameterTypes.TYPE_MAC_ADDRESS,
- atkParam.Parameter.MAC_DESTINATION: atkParam.ParameterTypes.TYPE_MAC_ADDRESS,
- atkParam.Parameter.INJECT_AT_TIMESTAMP: atkParam.ParameterTypes.TYPE_FLOAT,
- atkParam.Parameter.INJECT_AFTER_PACKET: atkParam.ParameterTypes.TYPE_PACKET_POSITION,
- atkParam.Parameter.IP_SOURCE_RANDOMIZE: atkParam.ParameterTypes.TYPE_BOOLEAN,
- atkParam.Parameter.PACKETS_PER_SECOND: atkParam.ParameterTypes.TYPE_FLOAT,
- atkParam.Parameter.PORT_SOURCE_RANDOMIZE: atkParam.ParameterTypes.TYPE_BOOLEAN,
- atkParam.Parameter.HOSTING_IP: atkParam.ParameterTypes.TYPE_IP_ADDRESS,
- atkParam.Parameter.HOSTING_VERSION: atkParam.ParameterTypes.TYPE_STRING,
- atkParam.Parameter.SOURCE_PLATFORM: atkParam.ParameterTypes.TYPE_STRING,
- atkParam.Parameter.PROTOCOL_VERSION: atkParam.ParameterTypes.TYPE_STRING
- })
- def init_params(self):
- """
- Initialize the parameters of this attack using the user supplied command line parameters.
- Use the provided statistics to calculate default parameters and to process user
- supplied queries.
- """
-
-
- most_used_ip_address = self.statistics.get_most_used_ip_address()
- self.add_param_value(atkParam.Parameter.IP_SOURCE, most_used_ip_address)
- self.add_param_value(atkParam.Parameter.IP_SOURCE_RANDOMIZE, 'False')
- self.add_param_value(atkParam.Parameter.MAC_SOURCE, self.statistics.get_mac_address(most_used_ip_address))
- all_ips = self.statistics.get_ip_addresses()
- if not isinstance(all_ips, list):
- ip_destinations = []
- ip_destinations.append(all_ips)
- else:
- ip_destinations = all_ips
- self.add_param_value(atkParam.Parameter.IP_DESTINATION, ip_destinations)
- destination_mac = []
- for ip in ip_destinations:
- destination_mac.append(self.statistics.get_mac_address(str(ip)))
- if isinstance(destination_mac, list) and len(destination_mac) == 0:
- destination_mac = self.generate_random_mac_address()
- self.add_param_value(atkParam.Parameter.MAC_DESTINATION, destination_mac)
- self.add_param_value(atkParam.Parameter.PORT_SOURCE, rnd.randint(1024, 65535))
- self.add_param_value(atkParam.Parameter.PORT_SOURCE_RANDOMIZE, 'True')
- self.add_param_value(atkParam.Parameter.PACKETS_PER_SECOND,
- (self.statistics.get_pps_sent(most_used_ip_address) +
- self.statistics.get_pps_received(most_used_ip_address)) / 2)
- self.add_param_value(atkParam.Parameter.INJECT_AFTER_PACKET, rnd.randint(0, self.statistics.get_packet_count()))
- rnd_ip_count = self.statistics.get_ip_address_count() // 2
- self.add_param_value(atkParam.Parameter.HOSTING_IP, self.statistics.get_random_ip_address(rnd_ip_count))
- self.add_param_value(atkParam.Parameter.HOSTING_VERSION, SMBLib.get_smb_version(platform=self.host_os))
- self.add_param_value(atkParam.Parameter.SOURCE_PLATFORM, Util.get_rnd_os())
- self.add_param_value(atkParam.Parameter.PROTOCOL_VERSION, "1")
- def generate_attack_packets(self):
- """
- Creates the attack packets.
- """
- pps = self.get_param_value(atkParam.Parameter.PACKETS_PER_SECOND)
-
- complement_interval_pps = self.statistics.calculate_complement_packet_rates(pps)
-
- timestamp_next_pkt = self.get_param_value(atkParam.Parameter.INJECT_AT_TIMESTAMP)
-
- self.attack_start_utime = timestamp_next_pkt
- timestamp_prv_reply, timestamp_confirm = 0, 0
-
- ip_source = self.get_param_value(atkParam.Parameter.IP_SOURCE)
- ip_destinations = self.get_param_value(atkParam.Parameter.IP_DESTINATION)
- hosting_ip = self.get_param_value(atkParam.Parameter.HOSTING_IP)
- mac_source = self.get_param_value(atkParam.Parameter.MAC_SOURCE)
- mac_dest = self.get_param_value(atkParam.Parameter.MAC_DESTINATION)
-
- smb_version = self.get_param_value(atkParam.Parameter.PROTOCOL_VERSION)
- if smb_version not in SMBLib.smb_versions:
- SMBLib.invalid_smb_version(smb_version)
- hosting_version = self.get_param_value(atkParam.Parameter.HOSTING_VERSION)
- if hosting_version not in SMBLib.smb_versions:
- SMBLib.invalid_smb_version(hosting_version)
-
- src_platform = self.get_param_value(atkParam.Parameter.SOURCE_PLATFORM).lower()
- self.packets = []
-
- if self.get_param_value(atkParam.Parameter.PORT_SOURCE_RANDOMIZE):
- sport = Util.generate_source_port_from_platform(src_platform)
- else:
- sport = self.get_param_value(atkParam.Parameter.PORT_SOURCE)
-
- if isinstance(ip_destinations, list) and isinstance(mac_dest, str):
- ip_destinations = self.statistics.get_ip_address_from_mac(mac_dest)
- if len(ip_destinations) == 0:
- ip_destinations = self.generate_random_ipv4_address("Unknown", 1)
-
- self.ip_src_dst_equal_check(ip_source, ip_destinations)
- ip_dests = []
- if isinstance(ip_destinations, list):
- ip_dests = ip_destinations
- else:
- ip_dests.append(ip_destinations)
- if isinstance(ip_dests, list):
- rnd.shuffle(ip_dests)
-
- if self.get_param_value(atkParam.Parameter.IP_SOURCE_RANDOMIZE):
- ip_source = self.generate_random_ipv4_address("Unknown", 1)
- while ip_source in ip_dests:
- ip_source = self.generate_random_ipv4_address("Unknown", 1)
- mac_source = self.statistics.get_mac_address(str(ip_source))
- if len(mac_source) == 0:
- mac_source = self.generate_random_mac_address()
-
- source_mss_value, source_ttl_value, source_win_value = self.get_ip_data(ip_source)
- for ip in ip_dests:
- if ip != ip_source:
-
- mac_destination = self.statistics.get_mac_address(str(ip))
- if len(mac_destination) == 0:
- if isinstance(mac_dest, str):
- if len(self.statistics.get_ip_address_from_mac(mac_dest)) != 0:
- ip = self.statistics.get_ip_address_from_mac(mac_dest)
- self.ip_src_dst_equal_check(ip_source, ip)
- mac_destination = mac_dest
- else:
- mac_destination = self.generate_random_mac_address()
-
- destination_mss_value, destination_ttl_value, destination_win_value = self.get_ip_data(ip)
- min_delay, max_delay = self.get_reply_delay(ip)
-
- attacker_seq = rnd.randint(1000, 50000)
- victim_seq = rnd.randint(1000, 50000)
-
- if self.get_param_value(atkParam.Parameter.PORT_SOURCE_RANDOMIZE):
- sport = Util.generate_source_port_from_platform(src_platform, sport)
-
- request_ether = inet.Ether(src=mac_source, dst=mac_destination)
- request_ip = inet.IP(src=ip_source, dst=ip, ttl=source_ttl_value, flags='DF')
- request_tcp = inet.TCP(sport=sport, dport=SMBLib.smb_port, window=source_win_value, flags='S',
- seq=attacker_seq, options=[('MSS', source_mss_value)])
- attacker_seq += 1
- request = (request_ether / request_ip / request_tcp)
- request.time = timestamp_next_pkt
-
- self.packets.append(request)
-
- timestamp_reply = Util.update_timestamp(timestamp_next_pkt, pps, min_delay)
- while timestamp_reply <= timestamp_prv_reply:
- timestamp_reply = Util.update_timestamp(timestamp_prv_reply, pps, min_delay)
- timestamp_prv_reply = timestamp_reply
- if ip in hosting_ip:
-
-
- reply_ether = inet.Ether(src=mac_destination, dst=mac_source)
- reply_ip = inet.IP(src=ip, dst=ip_source, ttl=destination_ttl_value, flags='DF')
- reply_tcp = inet.TCP(sport=SMBLib.smb_port, dport=sport, seq=victim_seq, ack=attacker_seq,
- flags='SA',
- window=destination_win_value, options=[('MSS', destination_mss_value)])
- victim_seq += 1
- reply = (reply_ether / reply_ip / reply_tcp)
- reply.time = timestamp_reply
- self.packets.append(reply)
-
- confirm_ether = request_ether
- confirm_ip = request_ip
- confirm_tcp = inet.TCP(sport=sport, dport=SMBLib.smb_port, seq=attacker_seq, ack=victim_seq,
- window=source_win_value, flags='A')
- confirm = (confirm_ether / confirm_ip / confirm_tcp)
- timestamp_confirm = Util.update_timestamp(timestamp_reply, pps, min_delay)
- confirm.time = timestamp_confirm
- self.packets.append(confirm)
-
- smb_mid = rnd.randint(1, 65535)
- smb_pid = rnd.randint(1, 65535)
- smb_req_tail_arr = []
- smb_req_tail_size = 0
-
- if smb_version is "1":
- smb_req_dialects = SMBLib.smb_dialects[0:6]
- else:
- smb_req_dialects = SMBLib.smb_dialects
- if len(smb_req_dialects) == 0:
- smb_req_tail_arr.append(SMBNegociate_Protocol_Request_Tail())
- smb_req_tail_size = len(SMBNegociate_Protocol_Request_Tail())
- else:
- for dia in smb_req_dialects:
- smb_req_tail_arr.append(SMBNegociate_Protocol_Request_Tail(BufferData=dia))
- smb_req_tail_size += len(SMBNegociate_Protocol_Request_Tail(BufferData=dia))
-
- smb_req_head = SMBNegociate_Protocol_Request_Header(Flags2=0x2801, PID=smb_pid, MID=smb_mid,
- ByteCount=smb_req_tail_size)
- smb_req_length = len(smb_req_head) + smb_req_tail_size
- smb_req_net_bio = NBTSession(TYPE=0x00, LENGTH=smb_req_length)
- smb_req_tcp = inet.TCP(sport=sport, dport=SMBLib.smb_port, flags='PA', seq=attacker_seq,
- ack=victim_seq)
- smb_req_ip = inet.IP(src=ip_source, dst=ip, ttl=source_ttl_value)
- smb_req_ether = inet.Ether(src=mac_source, dst=mac_destination)
- attacker_seq += len(smb_req_net_bio) + len(smb_req_head) + smb_req_tail_size
- smb_req_combined = (smb_req_ether / smb_req_ip / smb_req_tcp / smb_req_net_bio / smb_req_head)
- for i in range(0, len(smb_req_tail_arr)):
- smb_req_combined = smb_req_combined / smb_req_tail_arr[i]
- timestamp_smb_req = Util.update_timestamp(timestamp_confirm, pps, min_delay)
- smb_req_combined.time = timestamp_smb_req
- self.packets.append(smb_req_combined)
-
- reply_tcp = inet.TCP(sport=SMBLib.smb_port, dport=sport, seq=victim_seq, ack=attacker_seq,
- window=destination_win_value, flags='A')
- confirm_smb_req = (reply_ether / reply_ip / reply_tcp)
- timestamp_reply = Util.update_timestamp(timestamp_smb_req, pps, min_delay)
- confirm_smb_req.time = timestamp_reply
- self.packets.append(confirm_smb_req)
-
- first_timestamp = time.mktime(time.strptime(self.statistics.get_pcap_timestamp_start()[:19],
- "%Y-%m-%d %H:%M:%S"))
- server_guid, security_blob, capabilities, data_size, server_start_time =\
- SMBLib.get_smb_platform_data(self.host_os, first_timestamp)
- timestamp_smb_rsp = Util.update_timestamp(timestamp_reply, pps, min_delay)
- diff = timestamp_smb_rsp - timestamp_smb_req
- begin = Util.get_filetime_format(timestamp_smb_req + diff * 0.1)
- end = Util.get_filetime_format(timestamp_smb_rsp - diff * 0.1)
- system_time = rnd.randint(begin, end)
-
- if smb_version is not "1" and hosting_version is not "1":
- smb_rsp_packet = SMB2.SMB2_SYNC_Header(Flags=1)
- smb_rsp_negotiate_body =\
- SMB2.SMB2_Negotiate_Protocol_Response(DialectRevision=0x02ff, SecurityBufferOffset=124,
- SecurityBufferLength=len(security_blob),
- SecurityBlob=security_blob, Capabilities=capabilities,
- MaxTransactSize=data_size, MaxReadSize=data_size,
- MaxWriteSize=data_size, SystemTime=system_time,
- ServerStartTime=server_start_time,
- ServerGuid=server_guid)
- smb_rsp_length = len(smb_rsp_packet) + len(smb_rsp_negotiate_body)
- else:
- smb_rsp_packet =\
- SMBNegociate_Protocol_Response_Advanced_Security(Start="\xffSMB", PID=smb_pid, MID=smb_mid,
- DialectIndex=5, SecurityBlob=security_blob)
- smb_rsp_length = len(smb_rsp_packet)
- smb_rsp_net_bio = NBTSession(TYPE=0x00, LENGTH=smb_rsp_length)
- smb_rsp_tcp = inet.TCP(sport=SMBLib.smb_port, dport=sport, flags='PA', seq=victim_seq,
- ack=attacker_seq)
- smb_rsp_ip = inet.IP(src=ip, dst=ip_source, ttl=destination_ttl_value)
- smb_rsp_ether = inet.Ether(src=mac_destination, dst=mac_source)
- victim_seq += len(smb_rsp_net_bio) + len(smb_rsp_packet)
- if smb_version is not "1" and hosting_version is not "1":
- victim_seq += len(smb_rsp_negotiate_body)
- smb_rsp_combined = (smb_rsp_ether / smb_rsp_ip / smb_rsp_tcp / smb_rsp_net_bio / smb_rsp_packet)
- if smb_version is not "1" and hosting_version is not "1":
- smb_rsp_combined = (smb_rsp_combined / smb_rsp_negotiate_body)
- smb_rsp_combined.time = timestamp_smb_rsp
- self.packets.append(smb_rsp_combined)
-
- confirm_tcp = inet.TCP(sport=sport, dport=SMBLib.smb_port, seq=attacker_seq, ack=victim_seq,
- window=source_win_value, flags='A')
- confirm_smb_res = (confirm_ether / confirm_ip / confirm_tcp)
- timestamp_confirm = Util.update_timestamp(timestamp_smb_rsp, pps, min_delay)
- confirm_smb_res.time = timestamp_confirm
- self.packets.append(confirm_smb_res)
-
- confirm_tcp = inet.TCP(sport=sport, dport=SMBLib.smb_port, seq=attacker_seq, ack=victim_seq,
- window=source_win_value, flags='FA')
- source_fin_ack = (confirm_ether / confirm_ip / confirm_tcp)
- timestamp_src_fin_ack = Util.update_timestamp(timestamp_confirm, pps, min_delay)
- source_fin_ack.time = timestamp_src_fin_ack
- attacker_seq += 1
- self.packets.append(source_fin_ack)
-
- reply_tcp = inet.TCP(sport=SMBLib.smb_port, dport=sport, seq=victim_seq, ack=attacker_seq,
- window=destination_win_value, flags='FA')
- destination_fin_ack = (reply_ether / reply_ip / reply_tcp)
- timestamp_dest_fin_ack = Util.update_timestamp(timestamp_src_fin_ack, pps, min_delay)
- victim_seq += 1
- destination_fin_ack.time = timestamp_dest_fin_ack
- self.packets.append(destination_fin_ack)
-
- confirm_tcp = inet.TCP(sport=sport, dport=SMBLib.smb_port, seq=attacker_seq, ack=victim_seq,
- window=source_win_value, flags='A')
- final_ack = (confirm_ether / confirm_ip / confirm_tcp)
- timestamp_final_ack = Util.update_timestamp(timestamp_dest_fin_ack, pps, min_delay)
- final_ack.time = timestamp_final_ack
- self.packets.append(final_ack)
- else:
-
- reply_ether = inet.Ether(src=mac_destination, dst=mac_source)
- reply_ip = inet.IP(src=ip, dst=ip_source, ttl=destination_ttl_value, flags='DF')
- reply_tcp = inet.TCP(sport=SMBLib.smb_port, dport=sport, seq=0, ack=attacker_seq, flags='RA',
- window=destination_win_value, options=[('MSS', destination_mss_value)])
- reply = (reply_ether / reply_ip / reply_tcp)
- reply.time = timestamp_reply
- self.packets.append(reply)
- pps = max(Util.get_interval_pps(complement_interval_pps, timestamp_next_pkt), 10)
- timestamp_next_pkt = Util.update_timestamp(timestamp_next_pkt, pps)
- def generate_attack_pcap(self):
- """
- Creates a pcap containing the attack packets.
- :return: The location of the generated pcap file.
- """
-
- self.attack_end_utime = self.packets[-1].time
-
- pcap_path = self.write_attack_pcap(sorted(self.packets, key=lambda pkt: pkt.time))
-
- return len(self.packets), pcap_path
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