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@@ -1,410 +0,0 @@
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-import logging
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-
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-from random import shuffle, randint
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-from lea import Lea
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-from scapy.layers.inet import IP, Ether, TCP
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-from scapy.layers.smb import *
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-from scapy.layers.netbios import *
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-
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-from Attack import BaseAttack
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-from Attack.AttackParameters import Parameter as Param
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-from Attack.AttackParameters import ParameterTypes
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-from ID2TLib.SMB2 import *
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-from ID2TLib.Utility import update_timestamp, get_interval_pps, get_rnd_os, get_ip_range,\
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- generate_source_port_from_platform, get_filetime_format
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-from ID2TLib.SMBLib import smb_port, smb_versions, smb_dialects, get_smb_version, get_smb_platform_data,\
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- invalid_smb_version
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-
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-logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
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-# noinspection PyPep8
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-
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-
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-class SMBScanAttack(BaseAttack.BaseAttack):
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-
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- def __init__(self):
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- """
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- Creates a new instance of the SMBScanAttack.
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-
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- """
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- # Initialize attack
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- super(SMBScanAttack, self).__init__("SmbScan Attack", "Injects an SMB scan",
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- "Scanning/Probing")
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-
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- # Define allowed parameters and their type
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- self.supported_params = {
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- Param.IP_SOURCE: ParameterTypes.TYPE_IP_ADDRESS,
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- Param.IP_DESTINATION: ParameterTypes.TYPE_IP_ADDRESS,
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- Param.PORT_SOURCE: ParameterTypes.TYPE_PORT,
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- Param.MAC_SOURCE: ParameterTypes.TYPE_MAC_ADDRESS,
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- Param.MAC_DESTINATION: ParameterTypes.TYPE_MAC_ADDRESS,
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- Param.INJECT_AT_TIMESTAMP: ParameterTypes.TYPE_FLOAT,
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- Param.INJECT_AFTER_PACKET: ParameterTypes.TYPE_PACKET_POSITION,
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- Param.IP_SOURCE_RANDOMIZE: ParameterTypes.TYPE_BOOLEAN,
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- Param.PACKETS_PER_SECOND: ParameterTypes.TYPE_FLOAT,
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- Param.PORT_SOURCE_RANDOMIZE: ParameterTypes.TYPE_BOOLEAN,
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- Param.HOSTING_IP: ParameterTypes.TYPE_IP_ADDRESS,
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- Param.HOSTING_VERSION: ParameterTypes.TYPE_STRING,
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- Param.SOURCE_PLATFORM: ParameterTypes.TYPE_STRING,
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- Param.PROTOCOL_VERSION: ParameterTypes.TYPE_STRING,
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- Param.IP_DESTINATION_END: ParameterTypes.TYPE_IP_ADDRESS
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- }
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-
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- def init_params(self):
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- """
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- Initialize the parameters of this attack using the user supplied command line parameters.
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- Use the provided statistics to calculate default parameters and to process user
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- supplied queries.
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-
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- :param statistics: Reference to a statistics object.
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- """
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- # PARAMETERS: initialize with default values
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- # (values are overwritten if user specifies them)
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- most_used_ip_address = self.statistics.get_most_used_ip_address()
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- if isinstance(most_used_ip_address, list):
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- most_used_ip_address = most_used_ip_address[0]
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-
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- self.add_param_value(Param.IP_SOURCE, most_used_ip_address)
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- self.add_param_value(Param.IP_SOURCE_RANDOMIZE, 'False')
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- self.add_param_value(Param.MAC_SOURCE, self.statistics.get_mac_address(most_used_ip_address))
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-
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- all_ips = self.statistics.get_ip_addresses()
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- if not isinstance(all_ips, list):
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- ip_destinations = []
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- ip_destinations.append(all_ips)
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- else:
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- ip_destinations = all_ips
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- self.add_param_value(Param.IP_DESTINATION, ip_destinations)
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- destination_mac = []
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- for ip in ip_destinations:
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- destination_mac.append(self.statistics.get_mac_address(str(ip)))
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- if isinstance(destination_mac, list) and len(destination_mac) == 0:
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- destination_mac = self.generate_random_mac_address()
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- self.add_param_value(Param.MAC_DESTINATION, destination_mac)
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- self.add_param_value(Param.PORT_SOURCE, randint(1024, 65535))
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- self.add_param_value(Param.PORT_SOURCE_RANDOMIZE, 'True')
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- self.add_param_value(Param.PACKETS_PER_SECOND,
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- (self.statistics.get_pps_sent(most_used_ip_address) +
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- self.statistics.get_pps_received(most_used_ip_address)) / 2)
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- self.add_param_value(Param.INJECT_AFTER_PACKET, randint(0, self.statistics.get_packet_count()))
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-
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- rnd_ip_count = self.statistics.get_ip_address_count()/2
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- self.add_param_value(Param.HOSTING_IP, self.statistics.get_random_ip_address(rnd_ip_count))
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- self.host_os = get_rnd_os()
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- self.add_param_value(Param.HOSTING_VERSION, get_smb_version(platform=self.host_os))
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- self.add_param_value(Param.SOURCE_PLATFORM, get_rnd_os())
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- self.add_param_value(Param.PROTOCOL_VERSION, "1")
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- self.add_param_value(Param.IP_DESTINATION_END, "0.0.0.0")
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-
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- def generate_attack_pcap(self):
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- def get_ip_data(ip_address: str):
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- """
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- Gets the MSS, TTL and Windows Size values of a given IP
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-
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- :param ip_address: the ip of which (packet-)data shall be returned
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- :return: MSS, TTL and Window Size values of the given IP
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- """
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- # Set MSS (Maximum Segment Size) based on MSS distribution of IP address
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- mss_dist = self.statistics.get_mss_distribution(ip_address)
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- if len(mss_dist) > 0:
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- mss_prob_dict = Lea.fromValFreqsDict(mss_dist)
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- mss_value = mss_prob_dict.random()
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- else:
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- mss_value = self.statistics.process_db_query("most_used(mssValue)")
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-
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- # Set TTL based on TTL distribution of IP address
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- ttl_dist = self.statistics.get_ttl_distribution(ip_address)
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- if len(ttl_dist) > 0:
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- ttl_prob_dict = Lea.fromValFreqsDict(ttl_dist)
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- ttl_value = ttl_prob_dict.random()
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- else:
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- ttl_value = self.statistics.process_db_query("most_used(ttlValue)")
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-
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- # Set Window Size based on Window Size distribution of IP address
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- win_dist = self.statistics.get_win_distribution(ip_address)
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- if len(win_dist) > 0:
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- win_prob_dict = Lea.fromValFreqsDict(win_dist)
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- win_value = win_prob_dict.random()
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- else:
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- win_value = self.statistics.process_db_query("most_used(winSize)")
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-
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- return mss_value, ttl_value, win_value
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-
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- pps = self.get_param_value(Param.PACKETS_PER_SECOND)
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-
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- # Calculate complement packet rates of the background traffic for each interval
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- complement_interval_pps = self.statistics.calculate_complement_packet_rates(pps)
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-
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-
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- # Timestamp
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- timestamp_next_pkt = self.get_param_value(Param.INJECT_AT_TIMESTAMP)
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- # store start time of attack
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- self.attack_start_utime = timestamp_next_pkt
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- timestamp_prv_reply, timestamp_confirm = 0,0
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-
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- # Initialize parameters
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- ip_source = self.get_param_value(Param.IP_SOURCE)
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- ip_destinations = self.get_param_value(Param.IP_DESTINATION)
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- hosting_ip = self.get_param_value(Param.HOSTING_IP)
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- ip_range_end = self.get_param_value(Param.IP_DESTINATION_END)
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- mac_source = self.get_param_value(Param.MAC_SOURCE)
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- mac_dest = self.get_param_value(Param.MAC_DESTINATION)
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-
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- # Check smb version
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- smb_version = self.get_param_value(Param.PROTOCOL_VERSION)
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- if smb_version not in smb_versions:
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- invalid_smb_version(smb_version)
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- hosting_version = self.get_param_value(Param.HOSTING_VERSION)
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- if hosting_version not in smb_versions:
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- invalid_smb_version(hosting_version)
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- # Check source platform
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- src_platform = self.get_param_value(Param.SOURCE_PLATFORM).lower()
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- packets = []
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-
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- # randomize source ports according to platform, if specified
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- if self.get_param_value(Param.PORT_SOURCE_RANDOMIZE):
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- sport = generate_source_port_from_platform(src_platform)
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- else:
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- sport = self.get_param_value(Param.PORT_SOURCE)
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-
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- # No destination IP was specified, but a destination MAC was specified, generate IP that fits MAC
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- if isinstance(ip_destinations, list) and isinstance(mac_dest, str):
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- ip_destinations = self.statistics.get_ip_address_from_mac(mac_dest)
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- if len(ip_destinations) == 0:
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- ip_destinations = self.generate_random_ipv4_address("Unknown", 1)
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- # Check ip.src == ip.dst
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- self.ip_src_dst_equal_check(ip_source, ip_destinations)
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-
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- ip_dests = []
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- if isinstance(ip_destinations, list):
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- ip_dests = ip_destinations
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- else:
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- ip_dests.append(ip_destinations)
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-
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- # Generate IPs of destination IP range, if specified
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- if ip_range_end != "0.0.0.0":
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- ip_dests = get_ip_range(ip_dests[0], ip_range_end)
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- shuffle(ip_dests)
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-
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- # Randomize source IP, if specified
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- if self.get_param_value(Param.IP_SOURCE_RANDOMIZE):
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- ip_source = self.generate_random_ipv4_address("Unknown", 1)
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- while ip_source in ip_dests:
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- ip_source = self.generate_random_ipv4_address("Unknown", 1)
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- mac_source = self.statistics.get_mac_address(str(ip_source))
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- if len(mac_source) == 0:
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- mac_source = self.generate_random_mac_address()
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-
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- # Get MSS, TTL and Window size value for source IP
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- source_mss_value, source_ttl_value, source_win_value = get_ip_data(ip_source)
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-
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- for ip in ip_dests:
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-
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- if ip != ip_source:
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-
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- # Get destination Mac Address
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- mac_destination = self.statistics.get_mac_address(str(ip))
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- if len(mac_destination) == 0:
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- if isinstance(mac_dest, str):
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- if len(self.statistics.get_ip_address_from_mac(mac_dest)) != 0:
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- ip = self.statistics.get_ip_address_from_mac(mac_dest)
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- self.ip_src_dst_equal_check(ip_source, ip)
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-
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- mac_destination = mac_dest
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-
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- else:
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- mac_destination = self.generate_random_mac_address()
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-
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- # Get MSS, TTL and Window size value for destination IP
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- destination_mss_value, destination_ttl_value, destination_win_value = get_ip_data(ip)
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-
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- minDelay, maxDelay = self.get_reply_delay(ip)
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-
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- # New connection, new random TCP sequence numbers
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- attacker_seq = randint(1000, 50000)
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- victim_seq = randint(1000, 50000)
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-
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- # Randomize source port for each connection if specified
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- if self.get_param_value(Param.PORT_SOURCE_RANDOMIZE):
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- sport = generate_source_port_from_platform(src_platform, sport)
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-
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- # 1) Build request package
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- request_ether = Ether(src=mac_source, dst=mac_destination)
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- request_ip = IP(src=ip_source, dst=ip, ttl=source_ttl_value, flags='DF')
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- request_tcp = TCP(sport=sport, dport=smb_port, window=source_win_value, flags='S',
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- seq=attacker_seq, options=[('MSS', source_mss_value)])
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- attacker_seq += 1
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- request = (request_ether / request_ip / request_tcp)
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- request.time = timestamp_next_pkt
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-
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- # Append request
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- packets.append(request)
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-
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- # Update timestamp for next package
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- timestamp_reply = update_timestamp(timestamp_next_pkt, pps, minDelay)
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- while (timestamp_reply <= timestamp_prv_reply):
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- timestamp_reply = update_timestamp(timestamp_prv_reply, pps, minDelay)
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- timestamp_prv_reply = timestamp_reply
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-
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- if ip in hosting_ip:
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-
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- # 2) Build TCP packages for ip that hosts SMB
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-
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- # destination sends SYN, ACK
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- reply_ether = Ether(src=mac_destination, dst=mac_source)
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- reply_ip = IP(src=ip, dst=ip_source, ttl=destination_ttl_value, flags='DF')
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- reply_tcp = TCP(sport=smb_port, dport=sport, seq=victim_seq, ack=attacker_seq, flags='SA',
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- window=destination_win_value, options=[('MSS', destination_mss_value)])
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- victim_seq += 1
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- reply = (reply_ether / reply_ip / reply_tcp)
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- reply.time = timestamp_reply
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- packets.append(reply)
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-
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- # requester confirms, ACK
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- confirm_ether = request_ether
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- confirm_ip = request_ip
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- confirm_tcp = TCP(sport=sport, dport=smb_port, seq=attacker_seq, ack=victim_seq,
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- window=source_win_value, flags='A')
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- confirm = (confirm_ether / confirm_ip / confirm_tcp)
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- timestamp_confirm = update_timestamp(timestamp_reply, pps, minDelay)
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- confirm.time = timestamp_confirm
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- packets.append(confirm)
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-
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- smb_MID = randint(1, 65535)
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- smb_PID = randint(1, 65535)
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- smb_req_tail_arr = []
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- smb_req_tail_size = 0
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-
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- # select dialects based on smb version
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- if smb_version is "1":
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- smb_req_dialects = smb_dialects[0:6]
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- else:
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- smb_req_dialects = smb_dialects
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- if len(smb_req_dialects) == 0:
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- smb_req_tail_arr.append(SMBNegociate_Protocol_Request_Tail())
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- smb_req_tail_size = len(SMBNegociate_Protocol_Request_Tail())
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- else:
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- for dia in smb_req_dialects:
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- smb_req_tail_arr.append(SMBNegociate_Protocol_Request_Tail(BufferData = dia))
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- smb_req_tail_size += len(SMBNegociate_Protocol_Request_Tail(BufferData = dia))
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-
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- smb_req_head = SMBNegociate_Protocol_Request_Header\
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- (Flags2=0x2801, PID=smb_PID, MID=smb_MID, ByteCount=smb_req_tail_size)
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- smb_req_length = len(smb_req_head) + smb_req_tail_size
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- smb_req_net_bio = NBTSession(TYPE=0x00, LENGTH=smb_req_length)
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- smb_req_tcp = TCP(sport=sport, dport=smb_port, flags='PA', seq=attacker_seq, ack=victim_seq)
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- smb_req_ip = IP(src=ip_source, dst=ip, ttl=source_ttl_value)
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- smb_req_ether = Ether(src=mac_source, dst=mac_destination)
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- attacker_seq += len(smb_req_net_bio) + len(smb_req_head) + smb_req_tail_size
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-
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- smb_req_combined = (smb_req_ether / smb_req_ip / smb_req_tcp / smb_req_net_bio / smb_req_head)
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-
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- for i in range(0 , len(smb_req_tail_arr)):
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- smb_req_combined = smb_req_combined / smb_req_tail_arr[i]
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-
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- timestamp_smb_req = update_timestamp(timestamp_confirm, pps, minDelay)
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- smb_req_combined.time = timestamp_smb_req
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- packets.append(smb_req_combined)
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-
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- # destination confirms SMB request package
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- reply_tcp = TCP(sport=smb_port, dport=sport, seq=victim_seq, ack=attacker_seq,
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- window=destination_win_value, flags='A')
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- confirm_smb_req = (reply_ether / reply_ip / reply_tcp)
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- timestamp_reply = update_timestamp(timestamp_smb_req, pps, minDelay)
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- confirm_smb_req.time = timestamp_reply
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- packets.append(confirm_smb_req)
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-
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- # smb response package
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- first_timestamp = time.mktime(time.strptime(self.statistics.get_pcap_timestamp_start()[:19],
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- "%Y-%m-%d %H:%M:%S"))
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- server_Guid, security_blob, capabilities, data_size, server_start_time = get_smb_platform_data\
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- (self.host_os, first_timestamp)
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-
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- timestamp_smb_rsp = update_timestamp(timestamp_reply, pps, minDelay)
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- diff = timestamp_smb_rsp - timestamp_smb_req
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- begin = get_filetime_format(timestamp_smb_req+diff*0.1)
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- end = get_filetime_format(timestamp_smb_rsp-diff*0.1)
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- system_time = randint(begin, end)
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-
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- if smb_version is not "1" and hosting_version is not "1":
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- smb_rsp_paket = SMB2_SYNC_Header(Flags = 1)
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- smb_rsp_negotiate_body = SMB2_Negotiate_Protocol_Response\
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- (DialectRevision=0x02ff, SecurityBufferOffset=124, SecurityBufferLength=len(security_blob),
|
|
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- SecurityBlob=security_blob, Capabilities=capabilities, MaxTransactSize=data_size,
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- MaxReadSize=data_size, MaxWriteSize=data_size, SystemTime=system_time,
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- ServerStartTime=server_start_time, ServerGuid=server_Guid)
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|
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- smb_rsp_length = len(smb_rsp_paket) + len(smb_rsp_negotiate_body)
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- else:
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- smb_rsp_paket = SMBNegociate_Protocol_Response_Advanced_Security\
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- (Start="\xffSMB", PID=smb_PID, MID=smb_MID, DialectIndex=5, SecurityBlob=security_blob)
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|
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- smb_rsp_length = len(smb_rsp_paket)
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- smb_rsp_net_bio = NBTSession(TYPE=0x00, LENGTH=smb_rsp_length)
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- smb_rsp_tcp = TCP(sport=smb_port, dport=sport, flags='PA', seq=victim_seq, ack=attacker_seq)
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|
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- smb_rsp_ip = IP(src=ip, dst=ip_source, ttl=destination_ttl_value)
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|
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- smb_rsp_ether = Ether(src=mac_destination, dst=mac_source)
|
|
|
- victim_seq += len(smb_rsp_net_bio) + len(smb_rsp_paket)
|
|
|
- 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_paket)
|
|
|
- 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
|
|
|
- packets.append(smb_rsp_combined)
|
|
|
-
|
|
|
-
|
|
|
- # source confirms SMB response package
|
|
|
- confirm_tcp = TCP(sport=sport, dport=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 = update_timestamp(timestamp_smb_rsp, pps, minDelay)
|
|
|
- confirm_smb_res.time = timestamp_confirm
|
|
|
- packets.append(confirm_smb_res)
|
|
|
-
|
|
|
- # attacker sends FIN ACK
|
|
|
- confirm_tcp = TCP(sport=sport, dport=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 = update_timestamp(timestamp_confirm, pps, minDelay)
|
|
|
- source_fin_ack.time = timestamp_src_fin_ack
|
|
|
- attacker_seq += 1
|
|
|
- packets.append(source_fin_ack)
|
|
|
-
|
|
|
- # victim sends FIN ACK
|
|
|
- reply_tcp = TCP(sport=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 = update_timestamp(timestamp_src_fin_ack, pps, minDelay)
|
|
|
- victim_seq += 1
|
|
|
- destination_fin_ack.time = timestamp_dest_fin_ack
|
|
|
- packets.append(destination_fin_ack)
|
|
|
-
|
|
|
- # source sends final ACK
|
|
|
- confirm_tcp = TCP(sport=sport, dport=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 = update_timestamp(timestamp_dest_fin_ack, pps, minDelay)
|
|
|
- final_ack.time = timestamp_final_ack
|
|
|
- packets.append(final_ack)
|
|
|
-
|
|
|
- else:
|
|
|
- # Build RST package
|
|
|
- reply_ether = Ether(src=mac_destination, dst=mac_source)
|
|
|
- reply_ip = IP(src=ip, dst=ip_source, ttl=destination_ttl_value, flags='DF')
|
|
|
- reply_tcp = TCP(sport=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
|
|
|
- packets.append(reply)
|
|
|
-
|
|
|
- pps = max(get_interval_pps(complement_interval_pps, timestamp_next_pkt), 10)
|
|
|
- timestamp_next_pkt = update_timestamp(timestamp_next_pkt, pps)
|
|
|
-
|
|
|
- # store end time of attack
|
|
|
- self.attack_end_utime = packets[-1].time
|
|
|
-
|
|
|
- # write attack packets to pcap
|
|
|
- pcap_path = self.write_attack_pcap(sorted(packets, key=lambda pkt: pkt.time))
|
|
|
-
|
|
|
- # return packets sorted by packet time_sec_start
|
|
|
- return len(packets), pcap_path
|