mirror of
https://github.com/bb107/MemoryModulePP
synced 2026-06-08 13:15:33 +00:00
Boring
298 lines
11 KiB
C++
298 lines
11 KiB
C++
#include "stdafx.h"
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#include <wchar.h>
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PMMP_GLOBAL_DATA MmpGlobalDataPtr;
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#ifdef _WIN64
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#define FindLdrpInvertedFunctionTable FindLdrpInvertedFunctionTable64
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#else
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#define FindLdrpInvertedFunctionTable FindLdrpInvertedFunctionTable32
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#endif
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BOOLEAN MmpBuildSectionName(_Out_ PUNICODE_STRING SectionName) {
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WCHAR buffer[128];
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wsprintfW(buffer, L"\\Sessions\\%d\\BaseNamedObjects\\MMPP%d", NtCurrentPeb()->SessionId, (unsigned int)NtCurrentProcessId());
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return RtlCreateUnicodeString(SectionName, buffer);
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}
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PRTL_RB_TREE FindLdrpModuleBaseAddressIndex() {
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PRTL_RB_TREE LdrpModuleBaseAddressIndex = nullptr;
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PLDR_DATA_TABLE_ENTRY_WIN10 nt10 = decltype(nt10)(MmpGlobalDataPtr->LdrpNtdllBase);
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PRTL_BALANCED_NODE node = nullptr;
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if (!nt10 || !RtlIsWindowsVersionOrGreater(6, 2, 0))return nullptr;
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node = &nt10->BaseAddressIndexNode;
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while (node->ParentValue & (~7)) node = decltype(node)(node->ParentValue & (~7));
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if (!node->Red) {
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BYTE count = 0;
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PRTL_RB_TREE tmp = nullptr;
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SEARCH_CONTEXT SearchContext{};
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SearchContext.MemoryBuffer = &node;
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SearchContext.BufferLength = sizeof(size_t);
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while (NT_SUCCESS(RtlFindMemoryBlockFromModuleSection((HMODULE)nt10->DllBase, ".data", &SearchContext))) {
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if (count++)return nullptr;
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tmp = (decltype(tmp))SearchContext.MemoryBlockInSection;
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}
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if (count && tmp && tmp->Root && tmp->Min) {
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LdrpModuleBaseAddressIndex = tmp;
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}
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}
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return LdrpModuleBaseAddressIndex;
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}
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static __forceinline bool IsModuleUnloaded(PLDR_DATA_TABLE_ENTRY entry) {
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if (RtlIsWindowsVersionOrGreater(6, 2, 0)) {
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return PLDR_DATA_TABLE_ENTRY_WIN8(entry)->DdagNode->State == LdrModulesUnloaded;
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}
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else {
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return entry->DllBase == nullptr;
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}
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}
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PVOID FindLdrpInvertedFunctionTable32() {
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// _RTL_INVERTED_FUNCTION_TABLE x86
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// Count +0x0 ????????
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// MaxCount +0x4 0x00000200
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// Overflow +0x8 0x00000000(Win7) ????????(Win10)
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// NextEntrySEHandlerTableEncoded +0xc 0x00000000(Win10) ++++++++(Win7)
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// _RTL_INVERTED_FUNCTION_TABLE_ENTRY[0] +0x10 ntdll.dll(win10) or The smallest base module
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// ImageBase +0x10 ++++++++
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// ImageSize +0x14 ++++++++
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// SEHandlerCount +0x18 ++++++++
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// NextEntrySEHandlerTableEncoded +0x1c ++++++++(Win10) ????????(Win7)
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// _RTL_INVERTED_FUNCTION_TABLE_ENTRY[1] ... ...
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// ......
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HMODULE hModule = nullptr, hNtdll = GetModuleHandleW(L"ntdll.dll");
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PIMAGE_NT_HEADERS NtdllHeaders = RtlImageNtHeader(hNtdll), ModuleHeaders = nullptr;
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_RTL_INVERTED_FUNCTION_TABLE_ENTRY_WIN7_32 entry{};
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LPCSTR lpSectionName = ".data";
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SEARCH_CONTEXT SearchContext{ SearchContext.MemoryBuffer = &entry,SearchContext.BufferLength = sizeof(entry) };
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PLIST_ENTRY ListHead = &NtCurrentPeb()->Ldr->InMemoryOrderModuleList,
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ListEntry = ListHead->Flink;
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PLDR_DATA_TABLE_ENTRY CurEntry = nullptr;
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DWORD SEHTable, SEHCount;
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BYTE Offset = 0x20; //sizeof(_RTL_INVERTED_FUNCTION_TABLE_ENTRY)*2
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if (RtlIsWindowsVersionOrGreater(6, 3, 0)) lpSectionName = ".mrdata";
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else if (!RtlIsWindowsVersionOrGreater(6, 2, 0)) Offset = 0xC;
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while (ListEntry != ListHead) {
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CurEntry = CONTAINING_RECORD(ListEntry, LDR_DATA_TABLE_ENTRY, InMemoryOrderLinks);
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ListEntry = ListEntry->Flink;
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if (IsModuleUnloaded(CurEntry))continue; //skip unloaded module
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if (IsValidMemoryModuleHandle((HMEMORYMODULE)CurEntry->DllBase))continue; //skip our memory module.
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if (CurEntry->DllBase == hNtdll && Offset == 0x20)continue; //Win10 skip first entry, if the base of ntdll is smallest.
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hModule = (HMODULE)(hModule ? min(hModule, CurEntry->DllBase) : CurEntry->DllBase);
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}
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ModuleHeaders = RtlImageNtHeader(hModule);
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if (!hModule || !ModuleHeaders || !hNtdll || !NtdllHeaders)return nullptr;
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RtlCaptureImageExceptionValues(hModule, &SEHTable, &SEHCount);
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entry = { RtlEncodeSystemPointer((PVOID)SEHTable),(DWORD)hModule,ModuleHeaders->OptionalHeader.SizeOfImage,(PVOID)SEHCount };
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while (NT_SUCCESS(RtlFindMemoryBlockFromModuleSection(hNtdll, lpSectionName, &SearchContext))) {
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PRTL_INVERTED_FUNCTION_TABLE_WIN7_32 tab = decltype(tab)(SearchContext.OutBufferPtr - Offset);
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//Note: Same memory layout for RTL_INVERTED_FUNCTION_TABLE_ENTRY in Windows 10 x86 and x64.
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if (RtlIsWindowsVersionOrGreater(6, 2, 0) && tab->MaxCount == 0x200 && !tab->NextEntrySEHandlerTableEncoded) return tab;
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else if (tab->MaxCount == 0x200 && !tab->Overflow) return tab;
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}
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return nullptr;
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}
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PVOID FindLdrpInvertedFunctionTable64() {
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// _RTL_INVERTED_FUNCTION_TABLE x64
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// Count +0x0 ????????
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// MaxCount +0x4 0x00000200
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// Epoch +0x8 ????????
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// OverFlow +0xc 0x00000000
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// _RTL_INVERTED_FUNCTION_TABLE_ENTRY[0] +0x10 ntdll.dll(win10) or The smallest base module
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// ExceptionDirectory +0x10 ++++++++
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// ImageBase +0x18 ++++++++
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// ImageSize +0x20 ++++++++
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// ExceptionDirectorySize +0x24 ++++++++
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// _RTL_INVERTED_FUNCTION_TABLE_ENTRY[1] ... ...
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// ......
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HMODULE hModule = nullptr, hNtdll = GetModuleHandleW(L"ntdll.dll");
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PIMAGE_NT_HEADERS NtdllHeaders = RtlImageNtHeader(hNtdll), ModuleHeaders = nullptr;
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_RTL_INVERTED_FUNCTION_TABLE_ENTRY_64 entry{};
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LPCSTR lpSectionName = ".data";
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PIMAGE_DATA_DIRECTORY dir = nullptr;
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SEARCH_CONTEXT SearchContext{ SearchContext.MemoryBuffer = &entry,SearchContext.BufferLength = sizeof(entry) };
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//Windows 8
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if (RtlVerifyVersion(6, 2, 0, RTL_VERIFY_FLAGS_MAJOR_VERSION | RTL_VERIFY_FLAGS_MINOR_VERSION)) {
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hModule = hNtdll;
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ModuleHeaders = NtdllHeaders;
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//lpSectionName = ".data";
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}
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//Windows 8.1 ~ Windows 10
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else if (RtlIsWindowsVersionOrGreater(6, 3, 0)) {
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hModule = hNtdll;
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ModuleHeaders = NtdllHeaders;
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lpSectionName = ".mrdata";
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}
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else {
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PLIST_ENTRY ListHead = &NtCurrentPeb()->Ldr->InLoadOrderModuleList,
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ListEntry = ListHead->Flink;
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PLDR_DATA_TABLE_ENTRY CurEntry = nullptr;
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while (ListEntry != ListHead) {
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CurEntry = CONTAINING_RECORD(ListEntry, LDR_DATA_TABLE_ENTRY, InLoadOrderLinks);
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ListEntry = ListEntry->Flink;
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//Make sure the smallest base address is not our memory module
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if (IsValidMemoryModuleHandle((HMEMORYMODULE)CurEntry->DllBase))continue;
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hModule = (HMODULE)(hModule ? min(hModule, CurEntry->DllBase) : CurEntry->DllBase);
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}
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ModuleHeaders = RtlImageNtHeader(hModule);
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}
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if (!hModule || !ModuleHeaders || !hNtdll || !NtdllHeaders)return nullptr;
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dir = &ModuleHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXCEPTION];
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entry = {
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dir->Size ? decltype(entry.ExceptionDirectory)((size_t)hModule + dir->VirtualAddress) : nullptr ,
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(PVOID)hModule, ModuleHeaders->OptionalHeader.SizeOfImage,dir->Size
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};
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while (NT_SUCCESS(RtlFindMemoryBlockFromModuleSection(hNtdll, lpSectionName, &SearchContext))) {
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PRTL_INVERTED_FUNCTION_TABLE_64 tab = decltype(tab)(SearchContext.OutBufferPtr - 0x10);
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if (RtlIsWindowsVersionOrGreater(6, 2, 0) && tab->MaxCount == 0x200 && !tab->Overflow) return tab;
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else if (tab->MaxCount == 0x200 && !tab->Epoch) return tab;
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}
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return nullptr;
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}
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PLIST_ENTRY FindLdrpHashTable() {
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PLIST_ENTRY list = nullptr;
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PLIST_ENTRY head = &NtCurrentPeb()->Ldr->InInitializationOrderModuleList, entry = head->Flink;
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PLDR_DATA_TABLE_ENTRY CurEntry = nullptr;
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while (head != entry) {
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CurEntry = CONTAINING_RECORD(entry, LDR_DATA_TABLE_ENTRY, LDR_DATA_TABLE_ENTRY::InInitializationOrderLinks);
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entry = entry->Flink;
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if (CurEntry->HashLinks.Flink == &CurEntry->HashLinks)continue;
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list = CurEntry->HashLinks.Flink;
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if (list->Flink == &CurEntry->HashLinks) {
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list = (decltype(list))((size_t)CurEntry->HashLinks.Flink - LdrHashEntry(CurEntry->BaseDllName) * sizeof(_LIST_ENTRY));
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break;
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}
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list = nullptr;
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}
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return list;
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}
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NTSTATUS InitializeLockHeld() {
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NTSTATUS status = STATUS_UNSUCCESSFUL;
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HANDLE hSection = nullptr;
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OBJECT_ATTRIBUTES oa;
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LARGE_INTEGER li;
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UNICODE_STRING us{};
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li.QuadPart = 0x1000;
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do {
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if (!MmpBuildSectionName(&us))break;
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InitializeObjectAttributes(&oa, &us, 0, nullptr, nullptr);
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status = NtCreateSection(
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&hSection,
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SECTION_ALL_ACCESS,
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&oa,
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&li,
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PAGE_READWRITE,
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SEC_COMMIT | SEC_BASED,
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nullptr
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);
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if (!NT_SUCCESS(status)) {
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if (status != STATUS_OBJECT_NAME_COLLISION) break;
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HANDLE hSection2;
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status = NtOpenSection(
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&hSection2,
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SECTION_ALL_ACCESS,
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&oa
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);
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if (!NT_SUCCESS(status))break;
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SECTION_BASIC_INFORMATION sbi{};
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status = NtQuerySection(
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hSection2,
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SECTION_INFORMATION_CLASS::SectionBasicInformation,
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&sbi,
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sizeof(sbi),
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nullptr
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);
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NtClose(hSection2);
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MmpGlobalDataPtr = (PMMP_GLOBAL_DATA)sbi.BaseAddress;
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break;
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}
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PVOID BaseAddress = 0;
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SIZE_T ViewSize = 0;
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status = NtMapViewOfSection(
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hSection,
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NtCurrentProcess(),
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&BaseAddress,
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0,
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0,
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nullptr,
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&ViewSize,
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ViewUnmap,
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0,
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PAGE_READWRITE
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);
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if (!NT_SUCCESS(status))break;
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MmpGlobalDataPtr = (PMMP_GLOBAL_DATA)BaseAddress;
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MmpGlobalDataPtr->MajorVersion = 1;
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MmpGlobalDataPtr->MinorVersion = 0;
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MmpGlobalDataPtr->LdrpNtdllBase = RtlFindNtdllLdrEntry();
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MmpGlobalDataPtr->LdrpHashTable = FindLdrpHashTable();
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MmpGlobalDataPtr->LdrpModuleBaseAddressIndex = FindLdrpModuleBaseAddressIndex();
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MmpGlobalDataPtr->LdrpInvertedFunctionTable = FindLdrpInvertedFunctionTable();
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MmpGlobalDataPtr->MmpFeatures = MEMORY_FEATURE_SUPPORT_VERSION | MEMORY_FEATURE_LDRP_HEAP | MEMORY_FEATURE_LDRP_HANDLE_TLS_DATA | MEMORY_FEATURE_LDRP_RELEASE_TLS_ENTRY;
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if (MmpGlobalDataPtr->LdrpModuleBaseAddressIndex)MmpGlobalDataPtr->MmpFeatures |= MEMORY_FEATURE_MODULE_BASEADDRESS_INDEX;
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if (MmpGlobalDataPtr->LdrpHashTable)MmpGlobalDataPtr->MmpFeatures |= MEMORY_FEATURE_LDRP_HASH_TABLE;
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if (MmpGlobalDataPtr->LdrpInvertedFunctionTable)MmpGlobalDataPtr->MmpFeatures |= MEMORY_FEATURE_INVERTED_FUNCTION_TABLE;
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MmpTlsInitialize();
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} while (false);
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if (!NT_SUCCESS(status) && hSection)NtClose(hSection);
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RtlFreeUnicodeString(&us);
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return status;
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}
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NTSTATUS NTAPI Initialize() {
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NTSTATUS status;
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RtlAcquirePebLock();
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status = InitializeLockHeld();
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RtlReleasePebLock();
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return status;
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}
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#ifdef _USRDLL
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BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
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if (ul_reason_for_call == DLL_PROCESS_ATTACH) {
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return NT_SUCCESS(Initialize());
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}
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return TRUE;
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}
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#else
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const NTSTATUS Initializer = Initialize();
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#endif
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