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未解决 [求助] win10 1803 逆向 DbgkCreateThread返回之后 CR3 切换错误
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发表于: 2020-9-29 18:24
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代码跑完之后 返回 cr3 切换错误了
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DBGKM_APIMSG m; PDBGKM_CREATE_THREAD CreateThreadArgs; PDBGKM_CREATE_PROCESS CreateProcessArgs; PDBGKM_LOAD_DLL LoadDllArgs; NTSTATUS status; PIMAGE_NT_HEADERS NtHeaders; ULONG OldFlags; ULONG index; PMODULE_INFO ModuleInfo; ULONG64 DebugObject=NULL; PSYSTEM_DLL SystemDll; PVOID Object; PFILE_OBJECT FileObject; PKTHREAD_S CurrentThread; PUNICODE_STRING CurProcName = GetProcNameByEproc((PEPROCESS)Process); if ((CurProcName->Length != 0) && (wcsstr(CurProcName->Buffer, L"Dbgview.exe"))) { PVOID64 Flags = (PVOID64)(ULONG64(Process) + 0x304); RtlMoveMemory(&Process->Flags, (PVOID)Flags, 8); DbgPrint("Flags %p\n", &Process->Flags); DbgPrint("Flags %p\n", Process->Flags); PVOID64 SectionBaseAddress = (PVOID64)(ULONG64(Process) + 0x3C0); RtlMoveMemory(&Process->SectionBaseAddress, (PVOID)SectionBaseAddress, 8); DbgPrint("SectionBaseAddress %p\n", &Process->SectionBaseAddress); DbgPrint("SectionBaseAddress %p\n", Process->SectionBaseAddress); PVOID64 UniqueProcessId = (PVOID64)(ULONG64(Process) + 0x2E0); RtlMoveMemory(&Process->UniqueProcessId, (PVOID)UniqueProcessId, 8); DbgPrint("UniqueProcessId %p\n", &Process->UniqueProcessId); DbgPrint("UniqueProcessId %p\n", Process->UniqueProcessId); PVOID64 SectionObject = (PVOID64)(ULONG64(Process) + 0x3B8); RtlMoveMemory(&Process->SectionObject, (PVOID)SectionObject, 8); DbgPrint("UniqueProcessId %p\n", &Process->SectionObject); DbgPrint("UniqueProcessId %p\n", Process->SectionObject); // __debugbreak(); } OldFlags = RtlInterlockedSetBits(&Process->Flags, 0x400001);// RtlInterlockedSetBits 对由多线程共享的变量执行原子位或操作。 /*检查是否我们是第一个设置它们的线程，或者是否有其他线程与我们竞赛*/ if ((OldFlags & 0x00400000) == 0 && (*PspNotifyEnableMask & 0x1)) { IMAGE_INFO_EX ImageInfoEx; PUNICODE_STRING ImageName; POBJECT_NAME_INFORMATION FileNameInfo; ImageInfoEx.ImageInfo.Properties = 0; ImageInfoEx.ImageInfo.ImageAddressingMode = IMAGE_ADDRESSING_MODE_32BIT; ImageInfoEx.ImageInfo.ImageBase = Process->SectionBaseAddress; ImageInfoEx.ImageInfo.ImageSize = 0; DbgPrint("%p\n", Process->SectionBaseAddress); /* Get the NT Headers */ _try{ NtHeaders = RtlImageNtHeader(Process->SectionBaseAddress); //获取一个header if (NtHeaders) { ImageInfoEx.ImageInfo.ImageSize = NtHeaders->OptionalHeader.SizeOfImage; } } _except(EXCEPTION_EXECUTE_HANDLER) { ImageInfoEx.ImageInfo.ImageSize = 0; } ImageInfoEx.ImageInfo.ImageSelector = 0; ImageInfoEx.ImageInfo.ImageSectionNumber = 0; PsReferenceProcessFilePointer((PEPROCESS)Process, (PVOID*)&FileObject); status = SeLocateProcessImageName((PEPROCESS)Process, &ImageName); if (!NT_SUCCESS(status)) { ImageName = NULL; } DbgPrint("%p\n", Process->UniqueProcessId); DbgPrint("%p\n", ImageName); DbgPrint("%p\n", &ImageInfoEx); DbgPrint("%p\n", FileObject); //Call the notify routines if ((CurProcName->Length != 0) && (wcsstr(CurProcName->Buffer, L"Dbgview.exe")))//测试用 { PsCallImageNotifyRoutines( ImageName, &Process->UniqueProcessId, &ImageInfoEx, FileObject); } else { PsCallImageNotifyRoutines( ImageName, Process->UniqueProcessId, &ImageInfoEx, FileObject); } if (ImageName) { ExFreePoolWithTag(ImageName, 0); } //PsReferenceProcessFilePointer增加了引用计数 //ObfDereferenceObject(FileObject); //__debugbreak(); index = 0; while (index < 2) { ModuleInfo = (PMODULE_INFO)PsQuerySystemDllInfo(index); //ModuleInfo2 = (PMODULE_INFO)PsQuerySystemDllInfo2_(index); //DbgPrint("ModuleInfo:%p\n", ModuleInfo); if (ModuleInfo != NULL) { ImageInfoEx.ImageInfo.Properties = 0; ImageInfoEx.ImageInfo.ImageAddressingMode = IMAGE_ADDRESSING_MODE_32BIT; ImageInfoEx.ImageInfo.ImageBase = ModuleInfo->BaseOfDll; ImageInfoEx.ImageInfo.ImageSize = 0; _try{ NtHeaders = RtlImageNtHeader(ModuleInfo->BaseOfDll); if (NtHeaders) { ImageInfoEx.ImageInfo.ImageSize = NtHeaders->OptionalHeader.SizeOfImage; } }_except(EXCEPTION_EXECUTE_HANDLER) { ImageInfoEx.ImageInfo.ImageSize = 0; } ImageInfoEx.ImageInfo.ImageSelector = 0; ImageInfoEx.ImageInfo.ImageSectionNumber = 0; //实际就是PspSystemDlls SystemDll = (PSYSTEM_DLL)((ULONG_PTR)ModuleInfo - 0x10); Object = ObFastReferenceObject(&SystemDll->FastRef); if (Object == NULL) { KeEnterCriticalRegion(); ExfAcquirePushLockShared((ULONG_PTR)&SystemDll->Lock); Object = ObFastReferenceObjectLocked(&SystemDll->FastRef); ExfReleasePushLockShared((ULONG_PTR)&SystemDll->Lock); KeLeaveCriticalRegion(); } //这段可能有问题 CurrentThread = (PKTHREAD_S)KeGetCurrentThread(); //判断APC链表是否为空 if (&CurrentThread->ApcState.ApcListHead[0] != CurrentThread->ApcState.ApcListHead[0].Flink) { //判断APC是否禁用 if (CurrentThread->SpecialApcDisable != 0) { KiCheckForKernelApcDelivery(); } } //获取文件对象 //__debugbreak(); FileObject = (PFILE_OBJECT)ObFastReferenceObject(&((PSEGMENT_OBJECT)Object)->Subsection->ControlArea->FilePointer); if (FileObject == 0) { //DbgPrint("%p\n", Object); Object =MiSectionControlArea2_(Object); //DbgPrint("%p\n", Object); FileObject = MiReferenceControlAreaFile((PCONTROL_AREA)Object);//这里蓝屏了 已解决了 //FileObject = MiReferenceControlAreaFile2_((PCONTROL_AREA)Object);//这里蓝屏了 } if (FileObject != NULL) { ObFastDereferenceObject( &SystemDll->FastRef, FileObject); } if ((CurProcName->Length != 0) && (wcsstr(CurProcName->Buffer, L"Dbgview.exe"))) { PsCallImageNotifyRoutines( &SystemDll->ModuleInfo.FileName, &Process->UniqueProcessId, &ImageInfoEx, FileObject); } else { PsCallImageNotifyRoutines( &SystemDll->ModuleInfo.FileName, Process->UniqueProcessId, &ImageInfoEx, FileObject); } //ObfDereferenceObject(FileObject); } //ObfDereferenceObject(FileObject); index++; } } //--------------------------------------- PVOID64 addr=(PVOID64)(ULONG64(Process) + 0x420); // DbgPrint("Process: %p\n", (PVOID64)(ULONG64(Process) + 0x420)); RtlMoveMemory(&DebugObject, (PVOID)addr, 8); DbgPrint("Process1: %p\n", Process); // ULONG64 tt = DebugObject; // RtlMoveMemory(&DebugObject, (PVOID)tt, 8); // DbgPrint("%llX", DebugObject); //DebugObject = (PDEBUG_OBJECT)Process->DebugPort; if (DebugObject == NULL) { return; } __debugbreak(); if ((OldFlags & 0x1) == 0) { CreateThreadArgs = &m.u.CreateProcessInfo.InitialThread; CreateThreadArgs->SubSystemKey = 0; CreateProcessArgs = &m.u.CreateProcessInfo; CreateProcessArgs->SubSystemKey = 0; CreateProcessArgs->FileHandle = DbgkpSectionToFileHandle( &Process->SectionObject//3B8 ); CreateProcessArgs->BaseOfImage = &Process->SectionBaseAddress;//3c0 CreateThreadArgs->StartAddress = NULL; CreateProcessArgs->DebugInfoFileOffset = 0; CreateProcessArgs->DebugInfoSize = 0; _try{ NtHeaders = RtlImageNtHeader(&Process->SectionBaseAddress); if (NtHeaders) { CreateThreadArgs->StartAddress = (PVOID)(NtHeaders->OptionalHeader.ImageBase + NtHeaders->OptionalHeader.AddressOfEntryPoint); CreateProcessArgs->DebugInfoFileOffset = NtHeaders->FileHeader.PointerToSymbolTable; CreateProcessArgs->DebugInfoSize = NtHeaders->FileHeader.NumberOfSymbols; } } _except(EXCEPTION_EXECUTE_HANDLER) { CreateThreadArgs->StartAddress = NULL; CreateProcessArgs->DebugInfoFileOffset = 0; CreateProcessArgs->DebugInfoSize = 0; } m.h.u1.Length = 0x600038; m.h.u2.ZeroInit = 8; m.ApiNumber = DbgKmCreateProcessApi; __debugbreak(); DbgkpSendApiMessage(PsGetCurrentProcess(),FALSE, &m); if (CreateProcessArgs->FileHandle != NULL) { ObCloseHandle(CreateProcessArgs->FileHandle, KernelMode); } DbgkSendSystemDllMessages ( NULL, NULL, &m); } else { CreateThreadArgs = &m.u.CreateThread; CreateThreadArgs->SubSystemKey = 0; CreateThreadArgs->StartAddress = Thread->Win32StartAddress; m.h.u1.Length = 0x400018; m.h.u2.ZeroInit = 8; m.ApiNumber = DbgKmCreateThreadApi; DbgkpSendApiMessage(PsGetCurrentProcess(),TRUE, &m); } if (Thread->ClonedThread == TRUE) { DbgkpPostModuleMessages( (PEPROCESS)Process, (PETHREAD)Thread, NULL); }} |
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最后于 2020-9-29 19:47
被叽叽‘and1=1编辑
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