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SMBPackets.py
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330
SMBPackets.py
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#! /usr/bin/env python
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# NBT-NS/LLMNR Responder
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# Created by Laurent Gaffie
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# Copyright (C) 2013 Trustwave Holdings, Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import struct
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from odict import OrderedDict
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class Packet():
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fields = OrderedDict([
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("data", ""),
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])
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def __init__(self, **kw):
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self.fields = OrderedDict(self.__class__.fields)
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for k,v in kw.items():
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if callable(v):
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self.fields[k] = v(self.fields[k])
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else:
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self.fields[k] = v
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def __str__(self):
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return "".join(map(str, self.fields.values()))
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#Calculate total SMB packet len.
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def longueur(payload):
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length = struct.pack(">i", len(''.join(payload)))
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return length
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#Set MID SMB Header field.
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def midcalc(data):
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pack=data[34:36]
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return pack
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#Set UID SMB Header field.
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def uidcalc(data):
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pack=data[32:34]
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return pack
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#Set PID SMB Header field.
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def pidcalc(data):
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pack=data[30:32]
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return pack
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#Set TID SMB Header field.
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def tidcalc(data):
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pack=data[28:30]
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return pack
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##################################################################################
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class SMBHeader(Packet):
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fields = OrderedDict([
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("proto", "\xff\x53\x4d\x42"),
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("cmd", "\x72"),
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("errorcode", "\x00\x00\x00\x00" ),
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("flag1", "\x00"),
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("flag2", "\x00\x00"),
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("pidhigh", "\x00\x00"),
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("signature", "\x00\x00\x00\x00\x00\x00\x00\x00"),
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("reserved", "\x00\x00"),
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("tid", "\x00\x00"),
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("pid", "\x00\x00"),
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("uid", "\x00\x00"),
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("mid", "\x00\x00"),
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])
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##################################################################################
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class SMBNegoAns(Packet):
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fields = OrderedDict([
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("Wordcount", "\x11"),
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("Dialect", ""),
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("Securitymode", "\x03"),
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("MaxMpx", "\x32\x00"),
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("MaxVc", "\x01\x00"),
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("MaxBuffSize", "\x04\x41\x00\x00"),
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("MaxRawBuff", "\x00\x00\x01\x00"),
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("SessionKey", "\x00\x00\x00\x00"),
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("Capabilities", "\xfd\xf3\x01\x80"),
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("SystemTime", "\x84\xd6\xfb\xa3\x01\x35\xcd\x01"),
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("SrvTimeZone", "\xf0\x00"),
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("KeyLen", "\x00"),
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("Bcc", "\x57\x00"),
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("Guid", "\xc8\x27\x3d\xfb\xd4\x18\x55\x4f\xb2\x40\xaf\xd7\x61\x73\x75\x3b"),
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("InitContextTokenASNId", "\x60"),
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("InitContextTokenASNLen", "\x5b"),
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("ThisMechASNId", "\x06"),
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("ThisMechASNLen", "\x06"),
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("ThisMechASNStr", "\x2b\x06\x01\x05\x05\x02"),
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("SpNegoTokenASNId", "\xA0"),
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("SpNegoTokenASNLen", "\x51"),
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("NegTokenASNId", "\x30"),
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("NegTokenASNLen", "\x4f"),
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("NegTokenTag0ASNId", "\xA0"),
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("NegTokenTag0ASNLen", "\x30"),
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("NegThisMechASNId", "\x30"),
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("NegThisMechASNLen", "\x2e"),
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("NegThisMech4ASNId", "\x06"),
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("NegThisMech4ASNLen", "\x09"),
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("NegThisMech4ASNStr", "\x2b\x06\x01\x04\x01\x82\x37\x02\x02\x0a"),
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("NegTokenTag3ASNId", "\xA3"),
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("NegTokenTag3ASNLen", "\x1b"),
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("NegHintASNId", "\x30"),
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("NegHintASNLen", "\x19"),
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("NegHintTag0ASNId", "\xa0"),
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("NegHintTag0ASNLen", "\x17"),
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("NegHintFinalASNId", "\x1b"),
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("NegHintFinalASNLen", "\x15"),
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("NegHintFinalASNStr", "server2008$@SMB.LOCAL"),
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## END
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])
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def calculate(self):
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CompleteBCCLen1 = str(self.fields["Guid"])+str(self.fields["InitContextTokenASNId"])+str(self.fields["InitContextTokenASNLen"])+str(self.fields["ThisMechASNId"])+str(self.fields["ThisMechASNLen"])+str(self.fields["ThisMechASNStr"])+str(self.fields["SpNegoTokenASNId"])+str(self.fields["SpNegoTokenASNLen"])+str(self.fields["NegTokenASNId"])+str(self.fields["NegTokenASNLen"])+str(self.fields["NegTokenTag0ASNId"])+str(self.fields["NegTokenTag0ASNLen"])+str(self.fields["NegThisMechASNId"])+str(self.fields["NegThisMechASNLen"])+str(self.fields["NegThisMech4ASNId"])+str(self.fields["NegThisMech4ASNLen"])+str(self.fields["NegThisMech4ASNStr"])+str(self.fields["NegTokenTag3ASNId"])+str(self.fields["NegTokenTag3ASNLen"])+str(self.fields["NegHintASNId"])+str(self.fields["NegHintASNLen"])+str(self.fields["NegHintTag0ASNId"])+str(self.fields["NegHintTag0ASNLen"])+str(self.fields["NegHintFinalASNId"])+str(self.fields["NegHintFinalASNLen"])+str(self.fields["NegHintFinalASNStr"])
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AsnLenStart = str(self.fields["ThisMechASNId"])+str(self.fields["ThisMechASNLen"])+str(self.fields["ThisMechASNStr"])+str(self.fields["SpNegoTokenASNId"])+str(self.fields["SpNegoTokenASNLen"])+str(self.fields["NegTokenASNId"])+str(self.fields["NegTokenASNLen"])+str(self.fields["NegTokenTag0ASNId"])+str(self.fields["NegTokenTag0ASNLen"])+str(self.fields["NegThisMechASNId"])+str(self.fields["NegThisMechASNLen"])+str(self.fields["NegThisMech4ASNId"])+str(self.fields["NegThisMech4ASNLen"])+str(self.fields["NegThisMech4ASNStr"])+str(self.fields["NegTokenTag3ASNId"])+str(self.fields["NegTokenTag3ASNLen"])+str(self.fields["NegHintASNId"])+str(self.fields["NegHintASNLen"])+str(self.fields["NegHintTag0ASNId"])+str(self.fields["NegHintTag0ASNLen"])+str(self.fields["NegHintFinalASNId"])+str(self.fields["NegHintFinalASNLen"])+str(self.fields["NegHintFinalASNStr"])
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AsnLen2 = str(self.fields["NegTokenASNId"])+str(self.fields["NegTokenASNLen"])+str(self.fields["NegTokenTag0ASNId"])+str(self.fields["NegTokenTag0ASNLen"])+str(self.fields["NegThisMechASNId"])+str(self.fields["NegThisMechASNLen"])+str(self.fields["NegThisMech4ASNId"])+str(self.fields["NegThisMech4ASNLen"])+str(self.fields["NegThisMech4ASNStr"])+str(self.fields["NegTokenTag3ASNId"])+str(self.fields["NegTokenTag3ASNLen"])+str(self.fields["NegHintASNId"])+str(self.fields["NegHintASNLen"])+str(self.fields["NegHintTag0ASNId"])+str(self.fields["NegHintTag0ASNLen"])+str(self.fields["NegHintFinalASNId"])+str(self.fields["NegHintFinalASNLen"])+str(self.fields["NegHintFinalASNStr"])
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MechTypeLen = str(self.fields["NegThisMechASNId"])+str(self.fields["NegThisMechASNLen"])+str(self.fields["NegThisMech4ASNId"])+str(self.fields["NegThisMech4ASNLen"])+str(self.fields["NegThisMech4ASNStr"])
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Tag3Len = str(self.fields["NegHintASNId"])+str(self.fields["NegHintASNLen"])+str(self.fields["NegHintTag0ASNId"])+str(self.fields["NegHintTag0ASNLen"])+str(self.fields["NegHintFinalASNId"])+str(self.fields["NegHintFinalASNLen"])+str(self.fields["NegHintFinalASNStr"])
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self.fields["Bcc"] = struct.pack("<h",len(CompleteBCCLen1))
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self.fields["InitContextTokenASNLen"] = struct.pack("<B", len(AsnLenStart))
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self.fields["ThisMechASNLen"] = struct.pack("<B", len(str(self.fields["ThisMechASNStr"])))
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self.fields["SpNegoTokenASNLen"] = struct.pack("<B", len(AsnLen2))
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self.fields["NegTokenASNLen"] = struct.pack("<B", len(AsnLen2)-2)
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self.fields["NegTokenTag0ASNLen"] = struct.pack("<B", len(MechTypeLen))
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self.fields["NegThisMechASNLen"] = struct.pack("<B", len(MechTypeLen)-2)
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self.fields["NegThisMech4ASNLen"] = struct.pack("<B", len(str(self.fields["NegThisMech4ASNStr"])))
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self.fields["NegTokenTag3ASNLen"] = struct.pack("<B", len(Tag3Len))
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self.fields["NegHintASNLen"] = struct.pack("<B", len(Tag3Len)-2)
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self.fields["NegHintTag0ASNLen"] = struct.pack("<B", len(Tag3Len)-4)
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self.fields["NegHintFinalASNLen"] = struct.pack("<B", len(str(self.fields["NegHintFinalASNStr"])))
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################################################################################
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class SMBSession1Data(Packet):
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fields = OrderedDict([
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("Wordcount", "\x04"),
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("AndXCommand", "\xff"),
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("Reserved", "\x00"),
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("Andxoffset", "\x5f\x01"),
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("Action", "\x00\x00"),
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("SecBlobLen", "\xea\x00"),
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("Bcc", "\x34\x01"),
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("ChoiceTagASNId", "\xa1"),
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("ChoiceTagASNLenOfLen", "\x81"),
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("ChoiceTagASNIdLen", "\x00"),
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("NegTokenTagASNId", "\x30"),
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("NegTokenTagASNLenOfLen","\x81"),
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("NegTokenTagASNIdLen", "\x00"),
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("Tag0ASNId", "\xA0"),
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("Tag0ASNIdLen", "\x03"),
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("NegoStateASNId", "\x0A"),
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("NegoStateASNLen", "\x01"),
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("NegoStateASNValue", "\x01"),
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("Tag1ASNId", "\xA1"),
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("Tag1ASNIdLen", "\x0c"),
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("Tag1ASNId2", "\x06"),
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("Tag1ASNId2Len", "\x0A"),
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("Tag1ASNId2Str", "\x2b\x06\x01\x04\x01\x82\x37\x02\x02\x0a"),
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("Tag2ASNId", "\xA2"),
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("Tag2ASNIdLenOfLen", "\x81"),
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("Tag2ASNIdLen", "\xED"),
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("Tag3ASNId", "\x04"),
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("Tag3ASNIdLenOfLen", "\x81"),
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("Tag3ASNIdLen", "\xEA"),
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("NTLMSSPSignature", "NTLMSSP"),
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("NTLMSSPSignatureNull", "\x00"),
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("NTLMSSPMessageType", "\x02\x00\x00\x00"),
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("NTLMSSPNtWorkstationLen","\x1e\x00"),
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("NTLMSSPNtWorkstationMaxLen","\x1e\x00"),
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("NTLMSSPNtWorkstationBuffOffset","\x38\x00\x00\x00"),
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("NTLMSSPNtNegotiateFlags","\x15\x82\x89\xe2"),
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("NTLMSSPNtServerChallenge","\x81\x22\x33\x34\x55\x46\xe7\x88"),
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("NTLMSSPNtReserved","\x00\x00\x00\x00\x00\x00\x00\x00"),
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("NTLMSSPNtTargetInfoLen","\x94\x00"),
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("NTLMSSPNtTargetInfoMaxLen","\x94\x00"),
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("NTLMSSPNtTargetInfoBuffOffset","\x56\x00\x00\x00"),
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("NegTokenInitSeqMechMessageVersionHigh","\x05"),
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("NegTokenInitSeqMechMessageVersionLow","\x02"),
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("NegTokenInitSeqMechMessageVersionBuilt","\xce\x0e"),
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("NegTokenInitSeqMechMessageVersionReserved","\x00\x00\x00"),
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("NegTokenInitSeqMechMessageVersionNTLMType","\x0f"),
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("NTLMSSPNtWorkstationName","SMB12"),
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("NTLMSSPNTLMChallengeAVPairsId","\x02\x00"),
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("NTLMSSPNTLMChallengeAVPairsLen","\x0a\x00"),
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("NTLMSSPNTLMChallengeAVPairsUnicodeStr","smb12"),
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("NTLMSSPNTLMChallengeAVPairs1Id","\x01\x00"),
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("NTLMSSPNTLMChallengeAVPairs1Len","\x1e\x00"),
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("NTLMSSPNTLMChallengeAVPairs1UnicodeStr","SERVER2008"),
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("NTLMSSPNTLMChallengeAVPairs2Id","\x04\x00"),
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("NTLMSSPNTLMChallengeAVPairs2Len","\x1e\x00"),
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("NTLMSSPNTLMChallengeAVPairs2UnicodeStr","smb12.local"),
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("NTLMSSPNTLMChallengeAVPairs3Id","\x03\x00"),
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("NTLMSSPNTLMChallengeAVPairs3Len","\x1e\x00"),
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("NTLMSSPNTLMChallengeAVPairs3UnicodeStr","SERVER2008.smb12.local"),
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("NTLMSSPNTLMChallengeAVPairs5Id","\x05\x00"),
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("NTLMSSPNTLMChallengeAVPairs5Len","\x04\x00"),
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("NTLMSSPNTLMChallengeAVPairs5UnicodeStr","smb12.local"),
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("NTLMSSPNTLMChallengeAVPairs6Id","\x00\x00"),
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("NTLMSSPNTLMChallengeAVPairs6Len","\x00\x00"),
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("NTLMSSPNTLMPadding", ""),
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("NativeOs","Windows Server 2003 3790 Service Pack 2"),
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("NativeOsTerminator","\x00\x00"),
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("NativeLAN", "Windows Server 2003 5.2"),
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("NativeLANTerminator","\x00\x00"),
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])
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def calculate(self):
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##Convert strings to Unicode first...
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self.fields["NTLMSSPNtWorkstationName"] = self.fields["NTLMSSPNtWorkstationName"].encode('utf-16le')
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self.fields["NTLMSSPNTLMChallengeAVPairsUnicodeStr"] = self.fields["NTLMSSPNTLMChallengeAVPairsUnicodeStr"].encode('utf-16le')
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self.fields["NTLMSSPNTLMChallengeAVPairs1UnicodeStr"] = self.fields["NTLMSSPNTLMChallengeAVPairs1UnicodeStr"].encode('utf-16le')
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self.fields["NTLMSSPNTLMChallengeAVPairs2UnicodeStr"] = self.fields["NTLMSSPNTLMChallengeAVPairs2UnicodeStr"].encode('utf-16le')
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self.fields["NTLMSSPNTLMChallengeAVPairs3UnicodeStr"] = self.fields["NTLMSSPNTLMChallengeAVPairs3UnicodeStr"].encode('utf-16le')
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self.fields["NTLMSSPNTLMChallengeAVPairs5UnicodeStr"] = self.fields["NTLMSSPNTLMChallengeAVPairs5UnicodeStr"].encode('utf-16le')
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self.fields["NativeOs"] = self.fields["NativeOs"].encode('utf-16le')
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self.fields["NativeLAN"] = self.fields["NativeLAN"].encode('utf-16le')
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###### SecBlobLen Calc:
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AsnLen= str(self.fields["ChoiceTagASNId"])+str(self.fields["ChoiceTagASNLenOfLen"])+str(self.fields["ChoiceTagASNIdLen"])+str(self.fields["NegTokenTagASNId"])+str(self.fields["NegTokenTagASNLenOfLen"])+str(self.fields["NegTokenTagASNIdLen"])+str(self.fields["Tag0ASNId"])+str(self.fields["Tag0ASNIdLen"])+str(self.fields["NegoStateASNId"])+str(self.fields["NegoStateASNLen"])+str(self.fields["NegoStateASNValue"])+str(self.fields["Tag1ASNId"])+str(self.fields["Tag1ASNIdLen"])+str(self.fields["Tag1ASNId2"])+str(self.fields["Tag1ASNId2Len"])+str(self.fields["Tag1ASNId2Str"])+str(self.fields["Tag2ASNId"])+str(self.fields["Tag2ASNIdLenOfLen"])+str(self.fields["Tag2ASNIdLen"])+str(self.fields["Tag3ASNId"])+str(self.fields["Tag3ASNIdLenOfLen"])+str(self.fields["Tag3ASNIdLen"])
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CalculateSecBlob = str(self.fields["NTLMSSPSignature"])+str(self.fields["NTLMSSPSignatureNull"])+str(self.fields["NTLMSSPMessageType"])+str(self.fields["NTLMSSPNtWorkstationLen"])+str(self.fields["NTLMSSPNtWorkstationMaxLen"])+str(self.fields["NTLMSSPNtWorkstationBuffOffset"])+str(self.fields["NTLMSSPNtNegotiateFlags"])+str(self.fields["NTLMSSPNtServerChallenge"])+str(self.fields["NTLMSSPNtReserved"])+str(self.fields["NTLMSSPNtTargetInfoLen"])+str(self.fields["NTLMSSPNtTargetInfoMaxLen"])+str(self.fields["NTLMSSPNtTargetInfoBuffOffset"])+str(self.fields["NegTokenInitSeqMechMessageVersionHigh"])+str(self.fields["NegTokenInitSeqMechMessageVersionLow"])+str(self.fields["NegTokenInitSeqMechMessageVersionBuilt"])+str(self.fields["NegTokenInitSeqMechMessageVersionReserved"])+str(self.fields["NegTokenInitSeqMechMessageVersionNTLMType"])+str(self.fields["NTLMSSPNtWorkstationName"])+str(self.fields["NTLMSSPNTLMChallengeAVPairsId"])+str(self.fields["NTLMSSPNTLMChallengeAVPairsLen"])+str(self.fields["NTLMSSPNTLMChallengeAVPairsUnicodeStr"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs1Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs1Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs1UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs2Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs2Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs2UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs3Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs3Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs3UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs5Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs5Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs5UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs6Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs6Len"])
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##### Bcc len
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BccLen = AsnLen+CalculateSecBlob+str(self.fields["NTLMSSPNTLMPadding"])+str(self.fields["NativeOs"])+str(self.fields["NativeOsTerminator"])+str(self.fields["NativeLAN"])+str(self.fields["NativeLANTerminator"])
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#SecBlobLen
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self.fields["SecBlobLen"] = struct.pack("<h", len(AsnLen+CalculateSecBlob))
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self.fields["Bcc"] = struct.pack("<h", len(BccLen))
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self.fields["ChoiceTagASNIdLen"] = struct.pack(">B", len(AsnLen+CalculateSecBlob)-3)
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self.fields["NegTokenTagASNIdLen"] = struct.pack(">B", len(AsnLen+CalculateSecBlob)-6)
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self.fields["Tag1ASNIdLen"] = struct.pack(">B", len(str(self.fields["Tag1ASNId2"])+str(self.fields["Tag1ASNId2Len"])+str(self.fields["Tag1ASNId2Str"])))
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self.fields["Tag1ASNId2Len"] = struct.pack(">B", len(str(self.fields["Tag1ASNId2Str"])))
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self.fields["Tag2ASNIdLen"] = struct.pack(">B", len(CalculateSecBlob+str(self.fields["Tag3ASNId"])+str(self.fields["Tag3ASNIdLenOfLen"])+str(self.fields["Tag3ASNIdLen"])))
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self.fields["Tag3ASNIdLen"] = struct.pack(">B", len(CalculateSecBlob))
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###### Andxoffset calculation.
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CalculateCompletePacket = str(self.fields["Wordcount"])+str(self.fields["AndXCommand"])+str(self.fields["Reserved"])+str(self.fields["Andxoffset"])+str(self.fields["Action"])+str(self.fields["SecBlobLen"])+str(self.fields["Bcc"])+BccLen
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self.fields["Andxoffset"] = struct.pack("<h", len(CalculateCompletePacket)+32)
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###### Workstation Offset
|
||||
CalculateOffsetWorkstation = str(self.fields["NTLMSSPSignature"])+str(self.fields["NTLMSSPSignatureNull"])+str(self.fields["NTLMSSPMessageType"])+str(self.fields["NTLMSSPNtWorkstationLen"])+str(self.fields["NTLMSSPNtWorkstationMaxLen"])+str(self.fields["NTLMSSPNtWorkstationBuffOffset"])+str(self.fields["NTLMSSPNtNegotiateFlags"])+str(self.fields["NTLMSSPNtServerChallenge"])+str(self.fields["NTLMSSPNtReserved"])+str(self.fields["NTLMSSPNtTargetInfoLen"])+str(self.fields["NTLMSSPNtTargetInfoMaxLen"])+str(self.fields["NTLMSSPNtTargetInfoBuffOffset"])+str(self.fields["NegTokenInitSeqMechMessageVersionHigh"])+str(self.fields["NegTokenInitSeqMechMessageVersionLow"])+str(self.fields["NegTokenInitSeqMechMessageVersionBuilt"])+str(self.fields["NegTokenInitSeqMechMessageVersionReserved"])+str(self.fields["NegTokenInitSeqMechMessageVersionNTLMType"])
|
||||
|
||||
###### AvPairs Offset
|
||||
CalculateLenAvpairs = str(self.fields["NTLMSSPNTLMChallengeAVPairsId"])+str(self.fields["NTLMSSPNTLMChallengeAVPairsLen"])+str(self.fields["NTLMSSPNTLMChallengeAVPairsUnicodeStr"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs1Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs1Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs1UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs2Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs2Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs2UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs3Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs3Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs3UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs5Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs5Len"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs5UnicodeStr"])+(self.fields["NTLMSSPNTLMChallengeAVPairs6Id"])+str(self.fields["NTLMSSPNTLMChallengeAVPairs6Len"])
|
||||
|
||||
##### Workstation Offset Calculation:
|
||||
self.fields["NTLMSSPNtWorkstationBuffOffset"] = struct.pack("<i", len(CalculateOffsetWorkstation))
|
||||
self.fields["NTLMSSPNtWorkstationLen"] = struct.pack("<h", len(str(self.fields["NTLMSSPNtWorkstationName"])))
|
||||
self.fields["NTLMSSPNtWorkstationMaxLen"] = struct.pack("<h", len(str(self.fields["NTLMSSPNtWorkstationName"])))
|
||||
|
||||
##### IvPairs Offset Calculation:
|
||||
self.fields["NTLMSSPNtTargetInfoBuffOffset"] = struct.pack("<i", len(CalculateOffsetWorkstation+str(self.fields["NTLMSSPNtWorkstationName"])))
|
||||
self.fields["NTLMSSPNtTargetInfoLen"] = struct.pack("<h", len(CalculateLenAvpairs))
|
||||
self.fields["NTLMSSPNtTargetInfoMaxLen"] = struct.pack("<h", len(CalculateLenAvpairs))
|
||||
##### IvPair Calculation:
|
||||
self.fields["NTLMSSPNTLMChallengeAVPairs5Len"] = struct.pack("<h", len(str(self.fields["NTLMSSPNTLMChallengeAVPairs5UnicodeStr"])))
|
||||
self.fields["NTLMSSPNTLMChallengeAVPairs3Len"] = struct.pack("<h", len(str(self.fields["NTLMSSPNTLMChallengeAVPairs3UnicodeStr"])))
|
||||
self.fields["NTLMSSPNTLMChallengeAVPairs2Len"] = struct.pack("<h", len(str(self.fields["NTLMSSPNTLMChallengeAVPairs2UnicodeStr"])))
|
||||
self.fields["NTLMSSPNTLMChallengeAVPairs1Len"] = struct.pack("<h", len(str(self.fields["NTLMSSPNTLMChallengeAVPairs1UnicodeStr"])))
|
||||
self.fields["NTLMSSPNTLMChallengeAVPairsLen"] = struct.pack("<h", len(str(self.fields["NTLMSSPNTLMChallengeAVPairsUnicodeStr"])))
|
||||
|
||||
##################################################################################
|
||||
|
||||
class SMBSession2Accept(Packet):
|
||||
fields = OrderedDict([
|
||||
("Wordcount", "\x04"),
|
||||
("AndXCommand", "\xff"),
|
||||
("Reserved", "\x00"),
|
||||
("Andxoffset", "\xb4\x00"),
|
||||
("Action", "\x00\x00"),
|
||||
("SecBlobLen", "\x09\x00"),
|
||||
("Bcc", "\x89\x01"),
|
||||
("SSPIAccept","\xa1\x07\x30\x05\xa0\x03\x0a\x01\x00"),
|
||||
("NativeOs","Windows Server 2003 3790 Service Pack 2"),
|
||||
("NativeOsTerminator","\x00\x00"),
|
||||
("NativeLAN", "Windows Server 2003 5.2"),
|
||||
("NativeLANTerminator","\x00\x00"),
|
||||
])
|
||||
def calculate(self):
|
||||
self.fields["NativeOs"] = self.fields["NativeOs"].encode('utf-16le')
|
||||
self.fields["NativeLAN"] = self.fields["NativeLAN"].encode('utf-16le')
|
||||
BccLen = str(self.fields["SSPIAccept"])+str(self.fields["NativeOs"])+str(self.fields["NativeOsTerminator"])+str(self.fields["NativeLAN"])+str(self.fields["NativeLANTerminator"])
|
||||
self.fields["Bcc"] = struct.pack("<h", len(BccLen))
|
||||
|
||||
class SMBSessEmpty(Packet):
|
||||
fields = OrderedDict([
|
||||
("Empty", "\x00\x00\x00"),
|
||||
])
|
||||
|
||||
class SMBTreeData(Packet):
|
||||
fields = OrderedDict([
|
||||
("Wordcount", "\x07"),
|
||||
("AndXCommand", "\xff"),
|
||||
("Reserved","\x00" ),
|
||||
("Andxoffset", "\xbd\x00"),
|
||||
("OptionalSupport","\x00\x00"),
|
||||
("MaxShareAccessRight","\x00\x00\x00\x00"),
|
||||
("GuestShareAccessRight","\x00\x00\x00\x00"),
|
||||
("Bcc", "\x94\x00"),
|
||||
("Service", "IPC"),
|
||||
("ServiceTerminator","\x00\x00\x00\x00"),
|
||||
])
|
||||
|
||||
|
||||
def calculate(self):
|
||||
#Complete Packet Len
|
||||
CompletePacket= str(self.fields["Wordcount"])+str(self.fields["AndXCommand"])+str(self.fields["Reserved"])+str(self.fields["Andxoffset"])+str(self.fields["OptionalSupport"])+str(self.fields["MaxShareAccessRight"])+str(self.fields["GuestShareAccessRight"])+str(self.fields["Bcc"])+str(self.fields["Service"])+str(self.fields["ServiceTerminator"])
|
||||
|
||||
self.fields["Andxoffset"] = struct.pack("<H", len(CompletePacket)+32)
|
||||
## BCC Len Calc
|
||||
BccLen= str(self.fields["Service"])+str(self.fields["ServiceTerminator"])
|
||||
|
||||
self.fields["Bcc"] = struct.pack("<H", len(BccLen))
|
||||
Loading…
Add table
Add a link
Reference in a new issue