/
pcileech_gensig.c
291 lines (280 loc) · 13.5 KB
/
pcileech_gensig.c
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
// pcileech_gensig.c : kernel module signature generator for PCILeech
//
// PCILeech require code pages from the ntfs.sys kernel driver to hi-jack the
// execution flow in Windows 10. To avoid copyright infringement the end user
// must create the kmd signature files together with supported ntfs.sys files
//
// (c) Ulf Frisk, 2016
// Author: Ulf Frisk, pcileech@frizk.net
// Github: github.com/ufrisk/pcileech
//
#include <windows.h>
#include <bcrypt.h>
#include <stdio.h>
#pragma comment (lib, "crypt32.lib")
#pragma comment (lib, "bcrypt.lib")
typedef struct tdSIGNATURE{
DWORD dwOffset1;
DWORD dwOffset2;
LPSTR szHash1;
LPSTR szHash2;
LPSTR szFileName;
LPSTR szSignatureInfoDisplay;
LPSTR szSignatureInfo;
LPSTR szSignatureData;
} SIGNATURE, *PSIGNATURE;
#define NUMBER_OF_SIGNATURES 12
const SIGNATURE SIGNATURES[NUMBER_OF_SIGNATURES] = {
{
.szSignatureInfoDisplay = "ntfs.sys signed on 2014-10-15 (Windows 8.1 x64)",
.szFileName = "win8x64_ntfs_20141015.kmd",
.szSignatureInfo = "# ntfs.sys signed on 2014-10-15 (MJ_CREATE)",
.dwOffset1 = 0xd3000,
.dwOffset2 = 0x4a000,
.szHash1 = "1ac5c0df47e153480fc49bb3687df84473168bd65b4bb58ab3885f47a6116d1b",
.szHash2 = "a65cf907fb5aecb5d2a256b8a49706469025c740a896e3a8d0b27537f6fbbc6f",
.szSignatureData = ",d3920,DEFAULT_WINX64_STAGE1,4ad80,DEFAULT_WINX64_STAGE2,0,DEFAULT_WINX64_STAGE3,0,010003804a000100210001800a0003800c00018054010100080000001b00018001000000"
},
{
.szSignatureInfoDisplay = "ntfs.sys signed on 2015-12-30 (Windows 8.1 x64)",
.szFileName = "win8x64_ntfs_20151230.kmd",
.szSignatureInfo = "# ntfs.sys signed on 2016-12-30 (MJ_CREATE)",
.dwOffset1 = 0xd1000,
.dwOffset2 = 0x49000,
.szHash1 = "65b0b0cf8a508d20cb6906fe4fea9e10a1c4398c4f5c4bbbc366383e06572695",
.szHash2 = "6387547a0a12d5814681f0ed5fc47cd6aa31e8b4428bee8cf18081bb8ab57d67",
.szSignatureData = ",d1190,DEFAULT_WINX64_STAGE1,49d80,DEFAULT_WINX64_STAGE2,0,DEFAULT_WINX64_STAGE3,0,0100038049000100200001800a0003800c00018054010100080000001b00018001000000"
},
{
.szSignatureInfoDisplay = "ntfs.sys signed on 2016-02-23 (Windows 10 x64)",
.szFileName = "win10x64_ntfs_20160223.kmd",
.szSignatureInfo = "# ntfs.sys signed on 2016-02-23 (MJ_CREATE)",
.dwOffset1 = 0xca000,
.dwOffset2 = 0x4f000,
.szHash1 = "0592b0387ec943697dd0f552564e087c8dd385b25db565ffb11fa6bd1cf10b14",
.szHash2 = "218325e192e8146883054359e984376be0d13486c05d31ab4a23ff834ebb623e",
.szSignatureData = ",ca770,DEFAULT_WINX64_STAGE1,4fe38,DEFAULT_WINX64_STAGE2,0,DEFAULT_WINX64_STAGE3,0,010003804f00010023000180080003801400018066010100050000001d00018001000000"
},
{
.szSignatureInfoDisplay = "ntfs.sys signed on 2015-12-01 (Windows 10 x64)",
.szFileName = "win10x64_ntfs_20151201.kmd",
.szSignatureInfo = "# ntfs.sys signed on 2015-12-01 (MJ_CREATE)",
.dwOffset1 = 0xc5000,
.dwOffset2 = 0x4d000,
.szHash1 = "3bac25cd0e0cfc45dcb7efa67200e4800ffe8278fd3249a382bd4403f3309756",
.szHash2 = "fcc23d38f37141010e2985cc2c7babc8796c36e85b820d77d5c6b4fe66c6caf0",
.szSignatureData = ",c51e0,DEFAULT_WINX64_STAGE1,4dd30,DEFAULT_WINX64_STAGE2,0,DEFAULT_WINX64_STAGE3,0,010003804d00010022000180080003801400018061010100050000001d00018001000000"
},
{
.szSignatureInfoDisplay = "ntfs.sys signed on 2015-07-30 (Windows 10 x64)",
.szFileName = "win10x64_ntfs_20150730.kmd",
.szSignatureInfo = "# ntfs.sys signed on 2015-07-30 (MJ_CREATE)",
.dwOffset1 = 0xc4000,
.dwOffset2 = 0x4d000,
.szHash1 = "cd135fc58b88f96abff0ddb1207cb9e84e5b2f040607d0500de0018d32ad1572",
.szHash2 = "2cfd3b597b341c056a30a186b1347d82d211cf1319464ad1f13cfa525891e409",
.szSignatureData = ",c4dc0,DEFAULT_WINX64_STAGE1,4dd20,DEFAULT_WINX64_STAGE2,0,DEFAULT_WINX64_STAGE3,0,010003804d00010022000180080003801400018061010100050000001d00018001000000"
},
{
.szSignatureInfoDisplay = "ntfs.sys signed on 2015-07-17 (Windows 10 x64)",
.szFileName = "win10x64_ntfs_20150717.kmd",
.szSignatureInfo = "# ntfs.sys signed on 2015-07-17 (MJ_CREATE)",
.dwOffset1 = 0x1f000,
.dwOffset2 = 0x4d000,
.szHash1 = "9ac57fa7e7d8d92e066c6ce9c76c82fc3afccc1e6211eb4d9b03ea79c8a70b3b",
.szHash2 = "2cfd3b597b341c056a30a186b1347d82d211cf1319464ad1f13cfa525891e409",
.szSignatureData = ",1fb90,DEFAULT_WINX64_STAGE1,4dd20,DEFAULT_WINX64_STAGE2.bin,0,DEFAULT_WINX64_STAGE3,0,010003804d00010022000180080003801400018061010100050000001d00018001000000"
},
{
.szSignatureInfoDisplay = "ntfs.sys signed on 2015-07-10 (Windows 10 x64)",
.szFileName = "win10x64_ntfs_20150710.kmd",
.szSignatureInfo = "# ntfs.sys signed on 2015-07-10 (MJ_CREATE)",
.dwOffset1 = 0xc4000,
.dwOffset2 = 0x4d000,
.szHash1 = "a8a4e0d7963c2652226064c674b7ed38b1f84a8661e8f63663783dafb83271fc",
.szHash2 = "95964341fb3121baf303037a3796bd98c4167261ead9a4b4587a31e8a546dda1",
.szSignatureData = ",c4ec0,DEFAULT_WINX64_STAGE1,4dd20,DEFAULT_WINX64_STAGE2,0,DEFAULT_WINX64_STAGE3,0,010003804d00010022000180080003801400018062010100050000001d000180"
},
{
.szSignatureInfoDisplay = "ntfs.sys signed on 2016-03-29 (Windows 10 x64)",
.szFileName = "win10x64_ntfs_20160329.kmd",
.szSignatureInfo = "# ntfs.sys signed on 2016-03-29 (MJ_CREATE)",
.dwOffset1 = 0xca000,
.dwOffset2 = 0x4f000,
.szHash1 = "d091d4d5452ef388c6ff22780922f3f944a8439e5109dae207151f7f4fd23991",
.szHash2 = "84b0ffd20272e8757023975ef52132c9e82df7e81da537cf436407733a1f4957",
.szSignatureData = ",ca770,DEFAULT_WINX64_STAGE1,4fe38,DEFAULT_WINX64_STAGE2,0,DEFAULT_WINX64_STAGE3,0,010003804f00010023000180080003801400018066010100050000001d000180"
},
{
.szSignatureInfoDisplay = "ntfs.sys signed on 2016-07-16 (Windows 10 x64) [10.0.14393.0]",
.szFileName = "win10x64_ntfs_20160716_14393.kmd",
.szSignatureInfo = "# ntfs.sys signed on 2016-07-16 (MJ_CREATE) [10.0.14393.0]",
.dwOffset1 = 0xf6000,
.dwOffset2 = 0x53000,
.szHash1 = "5cadebe69115cc66e07f7d1e3f97ad0522840c1c648d33b37d8fe9f9a36ae413",
.szHash2 = "04d501dae7a097b649edc0bb68dc02036e31ece8c30ee48ab24ac8fb3095fe46",
.szSignatureData = ",f6b70,DEFAULT_WINX64_STAGE1,53e38,DEFAULT_WINX64_STAGE2,0,DEFAULT_WINX64_STAGE3,0,0100038053000100240001800800038014000180760101000500000022000180"
},
{
.szSignatureInfoDisplay = "ntfs.sys signed on 2016-08-03 (Windows 10 x64) [10.0.10240.17071]",
.szFileName = "win10x64_ntfs_20160803_10240.kmd",
.szSignatureInfo = "# ntfs.sys signed on 2016-08-03 (MJ_CREATE) [10.0.10240.17071]",
.dwOffset1 = 0xc5000,
.dwOffset2 = 0x4d000,
.szHash1 = "c80d2ff8c58669a539ecc636103a73eb8c65a4568c81d6627a9b14f428d0207f",
.szHash2 = "bafe68ca0561d5137504c53360cdec01b8d522eade7e558b90231fdaf53a66a5",
.szSignatureData = ",c51e0,DEFAULT_WINX64_STAGE1,4de38,DEFAULT_WINX64_STAGE2,0,DEFAULT_WINX64_STAGE3,0,010003804d00010022000180080003801400018061010100050000001d00018001000000"
},
{
.szSignatureInfoDisplay = "ntfs.sys signed on 2016-08-20 (Windows 10 x64) [10.0.14393.103]",
.szFileName = "win10x64_ntfs_20160820_14393.kmd",
.szSignatureInfo = "# ntfs.sys signed on 2016-08-20 (MJ_CREATE) [10.0.14393.103]",
.dwOffset1 = 0xf6000,
.dwOffset2 = 0x53000,
.szHash1 = "c6b3a2c6a9d19798b9974704e551a4798d0f2098279a67924eebcb03cee07590",
.szHash2 = "04d501dae7a097b649edc0bb68dc02036e31ece8c30ee48ab24ac8fb3095fe46",
.szSignatureData = ",f6b70,DEFAULT_WINX64_STAGE1,53e38,DEFAULT_WINX64_STAGE2,0,DEFAULT_WINX64_STAGE3,0,0100038053000100240001800800038014000180760101000500000022000180"
},
{
.szSignatureInfoDisplay = "ntfs.sys signed on 2016-09-07 (Windows 10 x64) [10.0.14393.187]",
.szFileName = "win10x64_ntfs_20160907_14393.kmd",
.szSignatureInfo = "# ntfs.sys signed on 2016-09-07 (MJ_CREATE) [10.0.14393.187]",
.dwOffset1 = 0xf7000,
.dwOffset2 = 0x53000,
.szHash1 = "e6f94244f8ab0cb45a2509679a15ebbb933c936c23d0c600116124b4aebf67d5",
.szHash2 = "04d501dae7a097b649edc0bb68dc02036e31ece8c30ee48ab24ac8fb3095fe46",
.szSignatureData = ",f78e0,DEFAULT_WINX64_STAGE1,53e38,DEFAULT_WINX64_STAGE2,0,DEFAULT_WINX64_STAGE3,0,0100038053000100240001800800038014000180760101000500000022000180"
}
};
const LPSTR SIGNATURE_FILE_HEADER = \
"# PCILeech kernel module signature \r\n" \
"# syntax(exactly one signature is only allowed) : \r\n" \
"# \r\n" \
"# chunk[0] = <page_offset_stage1_signature>, <signature> \r\n" \
"# chunk[1] = <page_offset_stage2_siganture>, <signature> \r\n" \
"# chunk[2] = <shellcode1_module_RVA>, <stage1 shellcode*> \r\n" \
"# chunk[3] = <shellcode2_module_RVA>, <stage2 shellcode*> \r\n" \
"# chunk[4] = <NA>, <stage3 shellcode*> \r\n" \
"# chunk[5] = <NA>, <Page Table signature of module> \r\n" \
"# *) shellcode can be given as hexascii, internal reference or file name. \r\n" \
"# \r\n";
VOID Util_SHA256(_In_ PBYTE pb, _In_ DWORD cb, _Out_ __bcount(32) PBYTE pbHash)
{
BCRYPT_ALG_HANDLE hAlg = NULL;
BCRYPT_HASH_HANDLE hHash = NULL;
BCryptOpenAlgorithmProvider(&hAlg, BCRYPT_SHA256_ALGORITHM, NULL, 0);
BCryptCreateHash(hAlg, &hHash, NULL, 0, NULL, 0, 0);
BCryptHashData(hHash, pb, cb, 0);
BCryptFinishHash(hHash, pbHash, 32, 0);
BCryptDestroyHash(hHash);
BCryptCloseAlgorithmProvider(hAlg, 0);
}
_Success_(return) BOOL Util_SHA256CMP(_In_ __bcount(4096) PBYTE pb, _In_ LPSTR szHash)
{
BYTE pbHash1[32], pbHash2[32];
DWORD cb = 32;
Util_SHA256(pb, 4096, pbHash1);
CryptStringToBinaryA(szHash, 0, CRYPT_STRING_HEXRAW, pbHash2, &cb, NULL, NULL);
return 0 == memcmp(pbHash1, pbHash2, 32);
}
DWORD PEGetImageSize(_In_ HMODULE hModule)
{
PIMAGE_DOS_HEADER dosHeader = (PIMAGE_DOS_HEADER)hModule;
if(!dosHeader || dosHeader->e_magic != IMAGE_DOS_SIGNATURE) { return 0; }
PIMAGE_NT_HEADERS ntHeader = (PIMAGE_NT_HEADERS)((ULONG_PTR)hModule + dosHeader->e_lfanew);
if(!ntHeader || ntHeader->Signature != IMAGE_NT_SIGNATURE) { return 0; }
return ntHeader->OptionalHeader.SizeOfImage;
}
_Success_(return) BOOL WriteSignatureFile(_In_ PSIGNATURE pSignature, _In_ __bcount(4096) PBYTE pb1, _In_ __bcount(4096) PBYTE pb2)
{
DWORD cbWritten, csz1 = 0x2001, csz2 = 0x2001;
HANDLE hFile;
BOOL result;
CHAR sz[0x2001];
hFile = CreateFileA(
pSignature->szFileName,
GENERIC_WRITE,
FILE_SHARE_READ,
NULL,
CREATE_NEW,
FILE_ATTRIBUTE_NORMAL,
NULL);
if(!hFile) { return FALSE; }
HRESULT hr = GetLastError();
result =
WriteFile(hFile, SIGNATURE_FILE_HEADER, (DWORD)strlen(SIGNATURE_FILE_HEADER), &cbWritten, NULL) &&
WriteFile(hFile, pSignature->szSignatureInfo, (DWORD)strlen(pSignature->szSignatureInfo), &cbWritten, NULL) &&
WriteFile(hFile, "\r\n0,", 4, &cbWritten, NULL) &&
CryptBinaryToStringA(pb1, 4096, CRYPT_STRING_HEXRAW | CRYPT_STRING_NOCRLF, sz, &csz1) &&
WriteFile(hFile, sz, 8192, &cbWritten, NULL) &&
WriteFile(hFile, ",0,", 3, &cbWritten, NULL) &&
CryptBinaryToStringA(pb2, 4096, CRYPT_STRING_HEXRAW | CRYPT_STRING_NOCRLF, sz, &csz2) &&
WriteFile(hFile, sz, 8192, &cbWritten, NULL) &&
WriteFile(hFile, pSignature->szSignatureData, (DWORD)strlen(pSignature->szSignatureData), &cbWritten, NULL);
CloseHandle(hFile);
return result;
}
VOID ShowInfo()
{
printf(
"The PCILeech signature generator - generate Windows kernel module signatures \n" \
"===============================================================================\n" \
"Syntax: pcileech_gensig <path_to_ntfs.sys> \n" \
" \n" \
"Some Windows kernel module signatures must be generated since they contain 8192\n" \
"bytes of microsoft copyrighted code. In order to avoid copyright issues one has\n" \
"to generate the signatures by themselves. Please start pcileech_gensig with the\n" \
"path to the ntfs.sys file to generate the signature for. The ntfs.sys file is\n" \
"generally found at c:\\Windows\\System32\\drivers\\ntfs.sys. In order to generate a\n" \
"a signature please run: 'pcileech_gensig.exe c:\\path_to_ntfs_sys\\ntfs.sys' and\n" \
"a .kmd signature file will be created on success. \n" \
"Supported ntfs.sys file versions: \n" \
"================================= \n");
for(DWORD i = 0; i < NUMBER_OF_SIGNATURES; i++) {
printf("%s\n", SIGNATURES[i].szSignatureInfoDisplay);
}
printf("\n");
}
int main(_In_ int argc, _In_ char* argv[])
{
BOOL result;
PSIGNATURE pS;
HMODULE hModule;
DWORD i, dwSizeMax;
if(argc != 2) {
ShowInfo();
return 1;
}
hModule = LoadLibraryA(argv[1]);
if(!hModule) {
printf("pcileech_gensig: failed! cannot load the file: %s\n\n", argv[1]);
return 1;
}
dwSizeMax = PEGetImageSize(hModule);
if(!dwSizeMax) {
printf("pcileech_gensig: failed! cannot interpret the file: %s\n\n", argv[1]);
return 1;
}
for(i = 0; i < sizeof(SIGNATURES) / sizeof(SIGNATURE); i++) {
pS = SIGNATURES + i;
if(pS->dwOffset1 > dwSizeMax || pS->dwOffset2 > dwSizeMax) {
continue;
}
if(!Util_SHA256CMP((PBYTE)hModule + pS->dwOffset1, pS->szHash1)) {
continue;
}
if(!Util_SHA256CMP((PBYTE)hModule + pS->dwOffset2, pS->szHash2)) {
continue;
}
result = WriteSignatureFile(pS, (PBYTE)hModule + pS->dwOffset1, (PBYTE)hModule + pS->dwOffset2);
if(result) {
printf("pcileech_gensig: successfully wrote signatute to file: %s\n\n", pS->szFileName);
return 0;
} else {
printf("pcileech_gensig: failed! failed writing to file: %s\n\n", pS->szFileName);
return 1;
}
}
printf("pcileech_gensig: failed! no signature matches file: %s\n\n", argv[1]);
return 1;
}