x64的内核重载源码

三木目 · 三木目

x64的内核重载源码，参照x86写的望大牛们指点。

ReX64.h

#pragma once
#include <ntifs.h>
#include <ntimage.h>
#include <intrin.h>
PVOID pNewBuffer = nullptr;
typedef struct _SYSTEM_SERVICE_TABLE //SSDT结构
{
PVOID serviceTableBase;
PVOID serviceCounterTableBase;
ULONGLONG numberofServices;
PVOID paramTableBase;
}SYSTEM_SERVICE_TABLE, *PSYSTEM_SERVICE_TABLE;
typedef struct _BaseAddr_Size
{
DWORD_PTR mMoudleBaseAddress;
DWORD_PTR mMoudleSizeOf;
}BaseAddr_Size, *PBaseAddr_Size;
#pragma once
#include <ntifs.h>
#include <ntimage.h>
#include <intrin.h>
PVOID pNewBuffer = nullptr;
typedef struct _SYSTEM_SERVICE_TABLE //SSDT结构
{
PVOID serviceTableBase;
PVOID serviceCounterTableBase;
ULONGLONG numberofServices;
PVOID paramTableBase;
}SYSTEM_SERVICE_TABLE, *PSYSTEM_SERVICE_TABLE;
typedef struct _BaseAddr_Size
{
DWORD_PTR mMoudleBaseAddress;
DWORD_PTR mMoudleSizeOf;
}BaseAddr_Size, *PBaseAddr_Size;
typedef struct _PE
{
IMAGE_DOS_HEADER DosHeader;
IMAGE_NT_HEADERS32 NtHeaders;
IMAGE_SECTION_HEADER SectionHeader;
}PE, *pPE;
typedef struct _LDR_DATA_TABLE_ENTRY
{
struct _LIST_ENTRY InLoadOrderLinks; //0x0
struct _LIST_ENTRY InMemoryOrderLinks; //0x8
struct _LIST_ENTRY InInitializationOrderLinks; //0x10
VOID* DllBase; //0x18
VOID* EntryPoint; //0x1c
ULONG SizeOfImage; //0x20
struct _UNICODE_STRING FullDllName; //0x24
struct _UNICODE_STRING BaseDllName; //0x2c
ULONG Flags; //0x34
USHORT LoadCount; //0x38
USHORT TlsIndex; //0x3a
union
{
struct _LIST_ENTRY HashLinks; //0x3c
struct
{
VOID* SectionPointer; //0x3c
ULONG CheckSum; //0x40
}u;
};
union
{
ULONG TimeDateStamp; //0x44
VOID* LoadedImports; //0x44
};
VOID* EntryPointActivationContext; //0x48
VOID* PatchInformation; //0x4c
}LDR_DATA_TABLE_ENTRY, *PLDR_DATA_TABLE_ENTRY;//0x50 bytes (sizeof)
EXTERN_C{
VOID UnLoad(PDRIVER_OBJECT pDriver);
NTSTATUS DriverEntry(PDRIVER_OBJECT pDriver, PUNICODE_STRING pReg);
}
NTSTATUS GetKernelImageBase_1(IN PDRIVER_OBJECT pDriver, IN PUNICODE_STRING szMoudeName, OUT PBaseAddr_Size mBeseAddrOfSize);
PVOID GetNewKernelBuffer_1(IN PUNICODE_STRING pStrKernelPathName);
VOID RepirRelocTable(IN DWORD_PTR uNewModule, IN DWORD_PTR uOldModule);
NTSTATUS RepirSSDT(IN PDRIVER_OBJECT pDriver, IN ULONG64 pNewKernelBuffer, IN ULONG64 uOldModule);
NTSTATUS GetSSDT(IN PDRIVER_OBJECT pdriver, OUT PVOID* addr); //通过链表找到ssdt
ReX64.cpp
[mw_shl_code=cpp,true]#pragma once
#include "ReX64Knrl.h"
#pragma warning (disable:4310)
VOID UnLoad(PDRIVER_OBJECT pDriver)
{
UNREFERENCED_PARAMETER(pDriver);
if (pNewBuffer) ExFreePool(pNewBuffer);
}
NTSTATUS DriverEntry(PDRIVER_OBJECT pDriver, PUNICODE_STRING pReg)
{
UNREFERENCED_PARAMETER(pReg);
pDriver->DriverUnload = UnLoad;
DbgBreakPoint();
NTSTATUS status = STATUS_UNSUCCESSFUL;
UNICODE_STRING szMoudleName = RTL_CONSTANT_STRING(L"ntoskrnl.exe");
BaseAddr_Size sz = { 0 };
status= GetKernelImageBase_1(pDriver, &szMoudleName, &sz);
if (NT_SUCCESS(status))
{
DbgPrintEx(77, 0, "GetKernelImageBase_1 sucess!\n");
}
else
{
DbgPrintEx(77, 0, "GetKernelImageBase_1 Faild!\n");
return STATUS_UNSUCCESSFUL;
}
UNICODE_STRING szFileName = RTL_CONSTANT_STRING(L"\\??\\C:\\Windows\\system32\\ntoskrnl.exe");//ntdll.dll //\\??\\C:\\WINDOWS\\system32\\ntkrnlpa.exe
PVOID pNewKernelBuffer = GetNewKernelBuffer_1(&szFileName);
if (!MmIsAddressValid(pNewKernelBuffer))
{
DbgPrintEx(77, 0, "pNewKernelBuffer is faild");
return STATUS_UNSUCCESSFUL;
}
DbgPrintEx(77, 0, "pNewKernelBuffer is: %llx", pNewKernelBuffer);
//基址重定位
RepirRelocTable((DWORD_PTR)pNewKernelBuffer, sz.mMoudleBaseAddress);
//系统服务表重定位
status = RepirSSDT(pDriver, (ULONG64)pNewKernelBuffer, sz.mMoudleBaseAddress);
if (NT_SUCCESS(status))
{
DbgPrintEx(77, 0, "RepirSSDT sucess!\n");
}
else
{
DbgPrintEx(77, 0, "RepirSSDT Faild!\n");
return STATUS_UNSUCCESSFUL;
}
//>>>>>>>> 插入HOOK 代码
return STATUS_SUCCESS;
}
//[获取当前内核模块基址_1]
NTSTATUS GetKernelImageBase_1(IN PDRIVER_OBJECT pDriver, IN PUNICODE_STRING szMoudeName, OUT PBaseAddr_Size mBeseAddrOfSize)
{
PLIST_ENTRY pCurrObject = (PLIST_ENTRY)pDriver->DriverSection;
PLIST_ENTRY pNextObject = pCurrObject->Flink;
PLDR_DATA_TABLE_ENTRY szTemp = nullptr;
while (pCurrObject != pNextObject)
{
szTemp = (PLDR_DATA_TABLE_ENTRY)pNextObject;
if (RtlCompareUnicodeString(&szTemp->BaseDllName, szMoudeName, TRUE) == NULL)
{
mBeseAddrOfSize->mMoudleBaseAddress = (DWORD_PTR)(szTemp->DllBase);
mBeseAddrOfSize->mMoudleSizeOf = szTemp->SizeOfImage;
DbgPrintEx(77, 0, "DllBase:0x%llX SizeOfImage:0x%X BaseDllName:%wZ FullDllName:%wZ ", szTemp->DllBase, szTemp->SizeOfImage, szTemp->BaseDllName, szTemp->FullDllName);
return STATUS_SUCCESS;
}
pNextObject = pNextObject->Flink;
}
return STATUS_UNSUCCESSFUL;
}
// [1、获取新的内核模块虚拟缓存]
PVOID GetNewKernelBuffer_1(IN PUNICODE_STRING pStrKernelPathName)
{
PE pe = { 0 };
HANDLE hFile = NULL;
OBJECT_ATTRIBUTES objectAttributes = { 0 };
IO_STATUS_BLOCK ioStatusBlock = { 0 };
InitializeObjectAttributes(&objectAttributes, pStrKernelPathName, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE, NULL, NULL);
NTSTATUS ntStatus = ZwCreateFile(&hFile, GENERIC_READ, &objectAttributes, &ioStatusBlock, NULL, FILE_ATTRIBUTE_NORMAL,
FILE_SHARE_READ, FILE_OPEN_IF, FILE_NON_DIRECTORY_FILE, NULL, 0);
if (!NT_SUCCESS(ntStatus))
{
KdPrint(("ZwCreateFile错误:%x\n", ntStatus));
return NULL;
}
LARGE_INTEGER fileOffset = { 0 };
fileOffset.QuadPart = 0;
//读取DOS头
ntStatus = ZwReadFile(hFile, NULL, NULL, NULL, &ioStatusBlock, &pe.DosHeader, sizeof(IMAGE_DOS_HEADER), &fileOffset, NULL);
if (!NT_SUCCESS(ntStatus))
{
KdPrint(("ZwReadFile错误:%x\n", ntStatus));
goto exit;
}
fileOffset.QuadPart += pe.DosHeader.e_lfanew;
//读取NT头
ntStatus = ZwReadFile(hFile, NULL, NULL, NULL, &ioStatusBlock, &pe.NtHeaders, sizeof(IMAGE_NT_HEADERS), &fileOffset, NULL);
if (!NT_SUCCESS(ntStatus))
{
KdPrint(("ZwReadFile错误:%x\n", ntStatus));
goto exit;
}
pNewBuffer = ExAllocatePool(NonPagedPool, pe.NtHeaders.OptionalHeader.SizeOfImage);
if (pNewBuffer == NULL)
{
KdPrint(("pNewBuffer错误\n"));
goto exit;
}
PVOID pTempBuffer = pNewBuffer;
RtlCopyMemory(pTempBuffer, &pe.DosHeader, sizeof(IMAGE_DOS_HEADER));
pTempBuffer = (PVOID)((DWORD_PTR)pTempBuffer + pe.DosHeader.e_lfanew);
RtlCopyMemory(pTempBuffer, &pe.NtHeaders, sizeof(IMAGE_NT_HEADERS));
fileOffset.QuadPart += sizeof(IMAGE_NT_HEADERS);
pTempBuffer = (PVOID)((DWORD_PTR)pTempBuffer + sizeof(IMAGE_NT_HEADERS));
//读取节表
ntStatus = ZwReadFile(hFile, NULL, NULL, NULL, &ioStatusBlock, pTempBuffer, (sizeof(IMAGE_SECTION_HEADER) * pe.NtHeaders.FileHeader.NumberOfSections), &fileOffset, NULL);
if (!NT_SUCCESS(ntStatus))
{
KdPrint(("ZwReadFile错误:%x\n", ntStatus));
pNewBuffer = nullptr;
goto exit;
}
PIMAGE_SECTION_HEADER pTempSectionHeader = (PIMAGE_SECTION_HEADER)pTempBuffer;
//读取节内容
for (ULONG32 uCount = 0; uCount < pe.NtHeaders.FileHeader.NumberOfSections; uCount++)
{
pTempBuffer = (PVOID)((DWORD_PTR)pNewBuffer + pTempSectionHeader->VirtualAddress);
fileOffset.QuadPart = pTempSectionHeader->PointerToRawData;
ntStatus = ZwReadFile(hFile, NULL, NULL, NULL, &ioStatusBlock, pTempBuffer, pTempSectionHeader->SizeOfRawData, &fileOffset, NULL);
if (!NT_SUCCESS(ntStatus))
{
KdPrint(("ZwReadFile错误:%x\n", ntStatus));
pNewBuffer = nullptr;
goto exit;
}
pTempSectionHeader++;
}
exit:
if (hFile) ZwClose(hFile);
//if (pNewBuffer) ExFreePool(pNewBuffer);
return pNewBuffer;
}
//修复重定位表
VOID RepirRelocTable(IN DWORD_PTR uNewModule,IN DWORD_PTR uOldModule)
{
UNREFERENCED_PARAMETER(uOldModule);
PIMAGE_DOS_HEADER pDosHeader = NULL;
PIMAGE_NT_HEADERS pNtHeaders = NULL;
PIMAGE_BASE_RELOCATION pRelocation = NULL;
PIMAGE_DATA_DIRECTORY pData = NULL;
pDosHeader = (PIMAGE_DOS_HEADER)uNewModule;
pNtHeaders = (PIMAGE_NT_HEADERS)((DWORD_PTR)pDosHeader + pDosHeader->e_lfanew);
pData = pNtHeaders->OptionalHeader.DataDirectory;
//定位重定位表
pRelocation = (PIMAGE_BASE_RELOCATION)((DWORD_PTR)uNewModule + pData[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress);
//由于新的内核里面的全局变量地址都是用的老的所以要加上它们之间的偏移量就等于我们新的内核全局变量地址
DWORD_PTR uOffset = uNewModule - pNtHeaders->OptionalHeader.ImageBase; //需要改正的偏移
while (pRelocation->VirtualAddress != 0 && pRelocation->SizeOfBlock != 0 && pRelocation->VirtualAddress != 01)
{
LONG32 uNumOfRelocs = (pRelocation->SizeOfBlock - 8) / 2; //取得重定位数量
PUSHORT pUShort = (PUSHORT)((DWORD_PTR)pRelocation + 8);
for (DWORD_PTR uCount = 0; uCount < uNumOfRelocs; uCount++, pUShort++)
{
if (((*pUShort) >> 12) == IMAGE_REL_BASED_DIR64)
{
PULONG64 pUlong32 = (PULONG64)(((*pUShort) & 0x0FFF) + pRelocation->VirtualAddress + uNewModule);
*pUlong32 += uOffset; //改好数据写入目的地址
}
}
pRelocation = (PIMAGE_BASE_RELOCATION)((DWORD_PTR)pRelocation + pRelocation->SizeOfBlock);
}
}
//修复新的系统服务表
NTSTATUS RepirSSDT(IN PDRIVER_OBJECT pDriver, IN ULONG64 pNewKernelBuffer, IN ULONG64 uOldModule)
{
ULONG64 g_uOffset = pNewKernelBuffer - uOldModule;
PVOID szAddr = nullptr;
NTSTATUS status = GetSSDT(pDriver, &szAddr);
if (!NT_SUCCESS(status))
{
DbgPrintEx(77, 0, "GetSSDT Faile!\n");
return STATUS_UNSUCCESSFUL;
}
PSYSTEM_SERVICE_TABLE m_pOldSSDT = { 0 };
m_pOldSSDT = (PSYSTEM_SERVICE_TABLE)szAddr;
PSYSTEM_SERVICE_TABLE m_pNewSSDT = (PSYSTEM_SERVICE_TABLE)((ULONGLONG)m_pOldSSDT + g_uOffset);
m_pNewSSDT->numberofServices = m_pOldSSDT->numberofServices;
ULONG64 m_uOffset = (ULONG64)m_pOldSSDT->serviceTableBase - uOldModule;
m_pNewSSDT->serviceTableBase = (PULONG32)(pNewKernelBuffer + m_uOffset);
m_uOffset = ((ULONGLONG)m_pOldSSDT->serviceCounterTableBase - uOldModule);
m_pNewSSDT->serviceCounterTableBase = (PULONG32)(pNewKernelBuffer + m_uOffset);
m_uOffset = ((ULONGLONG)m_pOldSSDT->paramTableBase - uOldModule);
m_pNewSSDT->paramTableBase = (PCHAR)(pNewKernelBuffer + m_uOffset);
RtlCopyMemory((PULONGLONG)m_pNewSSDT->paramTableBase, (PULONGLONG)m_pOldSSDT->paramTableBase, (ULONG64)m_pNewSSDT->numberofServices);//复制参数
m_uOffset = (ULONG64)m_pNewSSDT->serviceTableBase - pNewKernelBuffer;
//计算ssdt表中函数地址注：win10 ssdt表中函数地址为：高28位为偏移低4位为参数个数-4 不足4个参数时为零
for (ULONG32 uCount = 0; uCount < m_pNewSSDT->numberofServices; uCount++)
{
((PULONG32)(UCHAR*)(m_pNewSSDT->serviceTableBase))[uCount] = (ULONG32)((((PULONG32)(UCHAR*)(m_pNewSSDT->serviceTableBase))[uCount] - m_uOffset) << 4) + (((CHAR)((UCHAR*)(m_pNewSSDT->paramTableBase))[uCount]) >> 2);
}
return STATUS_SUCCESS;
}
NTSTATUS GetSSDT(IN PDRIVER_OBJECT pdriver, OUT PVOID* addr) //通过链表找到ssdt
{
PLDR_DATA_TABLE_ENTRY entry = (PLDR_DATA_TABLE_ENTRY)pdriver->DriverSection;
PLDR_DATA_TABLE_ENTRY head = entry;
UNICODE_STRING temp = { 0 };
RtlInitUnicodeString(&temp, L"ntoskrnl.exe");
PCHAR start = NULL;
ULONG size = 0;
do
{ //通过链表找到ntoskrnl.exe 内核文件。
if (RtlCompareUnicodeString(&temp, &entry->BaseDllName, TRUE) == NULL)
{
//DbgPrintEx(DPFLTR_IHVDRIVER_ID, 0, "%wZ\n", &entry->BaseDllName);
start = (PCHAR)entry->DllBase;
size = entry->SizeOfImage;
break;
}
entry = (PLDR_DATA_TABLE_ENTRY)entry->InLoadOrderLinks.Flink;
} while (entry != head);
for (ULONG i = 0; i < size; i++)
{
if (MmIsAddressValid(start))
{
if (*start == (CHAR)0x4c && *(CHAR*)(start + 1) == (CHAR)0x8d && *(CHAR*)(start + 2) == (CHAR)0x15) //注：必需强制转换字符串类型
{
start += 7;
if (MmIsAddressValid(start))
{
if (*start == (CHAR)0x4c && *(CHAR*)(start + 1) == (CHAR)0x8d && *(CHAR*)(start + 2) == (CHAR)0x1d)
{
*(PULONGLONG)addr = *(PULONG)(start - 4) + (ULONGLONG)start;
return STATUS_SUCCESS;
}
}
}
}
if (MmIsAddressValid(start))
{
start++;
}
}
return STATUS_UNSUCCESSFUL;
}

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[C++源码] x64的内核重载源码

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