小试X64 inline HOOK,hook explorer.exe--->CreateProcessInternalW监视进程创建

原始函数是这样的

1. kernel32!CreateProcessInternalW:
2. 00000000`7738e750 4c8bdc          mov     r11,rsp
3. 00000000`7738e753 53              push    rbx
4. 00000000`7738e754 56              push    rsi
5. 00000000`7738e755 57              push    rdi
6. 00000000`7738e756 4154            push    r12
7. 00000000`7738e758 4155            push    r13
8. 00000000`7738e75a 4156            push    r14
9. 00000000`7738e75c 4157            push    r15
10. 00000000`7738e75e 4881ec400b0000  sub     rsp,0B40h
11. 00000000`7738e765 488b0564cc0e00  mov     rax,qword ptr [kernel32!local_unwind+0x606b1 (00000000`7747b3d0)]

跟32位一样,在函数入口写入跳转指令,跟32不一样的是,不能再用之前的E9 xx xx xx xx这样的指令了,E9不支持64位地址跳转,最大只能支持到32位,

直接用E9大部分情况下会出错.所以我们换一种方法.

1. mov rax,0x1122334455667788
2. jmp rax

机器码是48 b8 8877665544332211 ffe0总共占了12个字节,不是我们之前用E9跳转的5字节了.

最前面的48叫REX Prefix,大家可以GOOGLE下,4是固定的,8表示使用64位寄存器.

如果没有前面的48就变成了mov eax, 0x1122334455667788了,使用32位寄存器.

我们需要把函数前面12字节改成跳转指令,正好

1. 00000000`7738e750 4c8bdc          mov     r11,rsp
2. 00000000`7738e753 53              push    rbx
3. 00000000`7738e754 56              push    rsi
4. 00000000`7738e755 57              push    rdi
5. 00000000`7738e756 4154            push    r12
6. 00000000`7738e758 4155            push    r13
7. 00000000`7738e75a 4156            push    r14

这12个字节是完整的7条指令,写入12字节指令,不会破坏后面的指令.

写入跳转指令后

1. kernel32!CreateProcessInternalW:
2. 00000000`7738e750 48b8001055fbfe070000 mov rax,offset x64dll!FakeCreateProcessInternal (000007fe`fb551000)
3. 00000000`7738e75a ffe0            jmp     rax
4. 00000000`7738e75c 4157            push    r15
5. 00000000`7738e75e 4881ec400b0000  sub     rsp,0B40h
6. 00000000`7738e765 488b0564cc0e00  mov     rax,qword ptr [kernel32!local_unwind+0x606b1 (00000000`7747b3d0)]
7. 00000000`7738e76c 4833c4          xor     rax,rsp
8. 00000000`7738e76f 48898424300b0000 mov     qword ptr [rsp+0B30h],rax
9. 00000000`7738e777 4889a42438050000 mov     qword ptr [rsp+538h],rsp

完整代码如下.

少NTDLL.h的朋友可以去搜索下载,也可以把RtlAdjustPrivilege替换成AdjustTokenPrivileges,效果样的,只是代码多几行而已.

声明:本人很菜,水平有限,汇编功底也是相当的水,如发现有误人子弟之处,敬请指正.若您有更好的方法也请多多指教.

1. #include <stdio.h>
2. #include <tchar.h>
3. #include <windows.h>
4. #include <shlwapi.h>
5. #include <ntdll.h>
6. #pragma comment(lib, "shlwapi.lib")
7. #define CODE_LEN 12
8. TCHAR ModuleFile[MAX_PATH];
9. DWORD dwOldProtect;
10. BYTE OldCode[CODE_LEN] = {0x90};
11. typedef HANDLE (WINAPI *__CreateProcessInternal)(HANDLE hToken,LPCTSTR lpApplicationName,LPTSTR lpCommandLine,LPSECURITY_ATTRIBUTES lpProcessAttributes,LPSECURITY_ATTRIBUTES lpThreadAttributes,BOOL bInheritHandles,DWORD dwCreationFlags,LPVOID lpEnvironment,LPCTSTR lpCurrentDirectory,LPSTARTUPINFOA lpStartupInfo,LPPROCESS_INFORMATION lpProcessInformation,PHANDLE hNewToken);
12. __CreateProcessInternal pfnCreateProcess = 0;
13. HANDLE WINAPI FakeCreateProcessInternal(HANDLE hToken,LPCTSTR lpApplicationName,LPTSTR lpCommandLine,LPSECURITY_ATTRIBUTES lpProcessAttributes,LPSECURITY_ATTRIBUTES lpThreadAttributes,BOOL bInheritHandles,DWORD dwCreationFlags,LPVOID lpEnvironment,LPCTSTR lpCurrentDirectory,LPSTARTUPINFOA lpStartupInfo,LPPROCESS_INFORMATION lpProcessInformation,PHANDLE hNewToken)
14. {
15. MessageBox(NULL, lpCommandLine, lpApplicationName, MB_ICONASTERISK);
16. return pfnCreateProcess(hToken, lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation, hNewToken);
17. }
18. BOOL WINAPI DllMain(HINSTANCE hinstDLL,  // handle to DLL module
19. DWORD fdwReason,     // reason for calling function
20. LPVOID lpReserved )  // reserved
21. {
22. switch( fdwReason )
23. {
24. case DLL_PROCESS_ATTACH:
25. ::DisableThreadLibraryCalls(hinstDLL);
26. GetModuleFileName(NULL, ModuleFile, _countof(ModuleFile));
27. if (StrRStrI(ModuleFile, 0, TEXT("explorer.exe")))
28. {
29. pfnCreateProcess = (__CreateProcessInternal)GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "CreateProcessInternalW");
30. ::VirtualProtect(pfnCreateProcess, CODE_LEN, PAGE_EXECUTE_READWRITE, &dwOldProtect);
31. memcpy(OldCode, pfnCreateProcess, CODE_LEN);
32. memset(pfnCreateProcess, 0x90, CODE_LEN);
33. /*
34. mov rax, FakeCreateProcessInternal
35. jmp rax
36. */
37. *(LPWORD)pfnCreateProcess = 0xb848;
38. *(INT64*)((INT64)pfnCreateProcess+2) = (INT64)FakeCreateProcessInternal;
39. *(LPWORD)((INT64)pfnCreateProcess+10) = 0xe0ff;
40. ::VirtualProtect(pfnCreateProcess, CODE_LEN, dwOldProtect, NULL);
41. pfnCreateProcess = (__CreateProcessInternal)VirtualAlloc(NULL, CODE_LEN+12, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
42. memcpy(pfnCreateProcess, OldCode, CODE_LEN);
43. /*
44. mov rax, CreateProcessInternalW + CODE_LEN
45. jmp rax
46. */
47. *(LPWORD)((INT64)pfnCreateProcess+CODE_LEN) = 0xb848;
48. *(INT64*)((INT64)pfnCreateProcess+CODE_LEN+2) = (INT64)GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "CreateProcessInternalW")+CODE_LEN;
49. *(LPWORD)((INT64)pfnCreateProcess+CODE_LEN+10) = 0xe0ff;
50. }
51. else if (StrRStrI(ModuleFile, 0, TEXT("Rundll32.exe")))
52. {
53. DWORD dwProcessId = 0;
54. HANDLE hProcess = 0;
55. HWND   hwndDeskTop;
56. hwndDeskTop = FindWindow(TEXT("ProgMan"), NULL);
57. GetModuleFileName(hinstDLL, ModuleFile, _countof(ModuleFile));
58. GetWindowThreadProcessId(hwndDeskTop, &dwProcessId);
59. BOOLEAN bEnable;
60. ::RtlAdjustPrivilege(0x13, 1, 0, &bEnable);
61. if (dwProcessId)
62. {
63. hProcess = OpenProcess(PROCESS_CREATE_THREAD|PROCESS_VM_OPERATION|PROCESS_VM_WRITE|PROCESS_VM_WRITE|PROCESS_QUERY_INFORMATION, NULL, dwProcessId);
64. }
65. LPVOID Param = VirtualAllocEx(hProcess, NULL, 256, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
66. WriteProcessMemory(hProcess, Param, (LPVOID)ModuleFile, 256, NULL);
67. HANDLE hThread = CreateRemoteThread(hProcess,
68. NULL,
69. NULL,
70. (LPTHREAD_START_ROUTINE)LoadLibraryW,
71. Param,
72. NULL,
73. NULL);
74. if (hThread)
75. {
76. WaitForSingleObject(hThread, INFINITE);
77. }
78. VirtualFreeEx(hProcess, Param , 0, MEM_RELEASE);
79. CloseHandle(hThread);
80. CloseHandle(hProcess);
81. }
82. break;
83. case DLL_THREAD_ATTACH:
84. case DLL_THREAD_DETACH:
85. case DLL_PROCESS_DETACH:
86. break;
87. }
88. return TRUE;
89. }
90. int _stdcall Setup(void)
91. {
92. return 1;
93. }

编译成DLL后,在运行里执行rundll32.exe X64Dll.dll,Setup,DLL会自动注入到explorer.exe进程.

完全工程及编译好的文件点击打开链接

顺便说下,CreateRemoteThread在WIN7下是可以用的,问题不在CreateRemoteThread,而是在OpenProcess打开进程的权限

权限设为

1. PROCESS_CREATE_THREAD|PROCESS_VM_OPERATION|PROCESS_VM_WRITE|PROCESS_VM_WRITE|PROCESS_QUERY_INFORMATION

就可以了,WIN7( 32/64)测试都没问题

http://blog.csdn.net/zwfgdlc/article/details/16918565