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seo搜索优化邵阳,aso优化教程,网站公司策划书,2017网站开发就业前景在驱动开发中我们有时需要得到驱动自身是否被加载成功的状态，这个功能看似没啥用实际上在某些特殊场景中还是需要的，如下代码实现了判断当前驱动是否加载成功，如果加载成功, 则输出该驱动的详细路径信息。 该功能实现的核心函数是NtQuerySys…

在驱动开发中我们有时需要得到驱动自身是否被加载成功的状态，这个功能看似没啥用实际上在某些特殊场景中还是需要的，如下代码实现了判断当前驱动是否加载成功，如果加载成功, 则输出该驱动的详细路径信息。

该功能实现的核心函数是NtQuerySystemInformation这是一个微软未公开的函数，也没有文档化，不过我们仍然可以通过动态指针的方式调用到它，该函数可以查询到很多系统信息状态，首先需要定义一个指针。

typedef NTSTATUS(*NTQUERYSYSTEMINFORMATION)(
IN ULONG SystemInformationClass,
OUT PVOID   SystemInformation,
IN ULONG_PTR    SystemInformationLength,
OUT PULONG_PTR  ReturnLength OPTIONAL);

其次还需要一个SYSTEM_MODULE_INFORMATION该结构内可以得到模块入口信息模块名称等，调用NtQuerySystemInformation数据会被格式化为SYSTEM_MODULE_INFORMATION方便调用。

typedef struct _SYSTEM_MODULE_INFORMATION {HANDLE Section;PVOID MappedBase;PVOID Base;ULONG Size;ULONG Flags;USHORT LoadOrderIndex;USHORT InitOrderIndex;USHORT LoadCount;USHORT PathLength;CHAR ImageName[256];
} SYSTEM_MODULE_INFORMATION, *PSYSTEM_MODULE_INFORMATION;

最后是SYSTEM_INFORMATION_CLASS该结构同样是一个未文档化的结构体，本此代码中需要用到的枚举类型是SystemModuleInformation其他类型也放这里后期做参考用。

typedef enum _SYSTEM_INFORMATION_CLASS
{SystemBasicInformation = 0x0,SystemProcessorInformation = 0x1,SystemPerformanceInformation = 0x2,SystemTimeOfDayInformation = 0x3,SystemPathInformation = 0x4,SystemProcessInformation = 0x5,SystemCallCountInformation = 0x6,SystemDeviceInformation = 0x7,SystemProcessorPerformanceInformation = 0x8,SystemFlagsInformation = 0x9,SystemCallTimeInformation = 0xa,SystemModuleInformation = 0xb,SystemLocksInformation = 0xc,SystemStackTraceInformation = 0xd,SystemPagedPoolInformation = 0xe,SystemNonPagedPoolInformation = 0xf,SystemHandleInformation = 0x10,SystemObjectInformation = 0x11,SystemPageFileInformation = 0x12,SystemVdmInstemulInformation = 0x13,SystemVdmBopInformation = 0x14,SystemFileCacheInformation = 0x15,SystemPoolTagInformation = 0x16,SystemInterruptInformation = 0x17,SystemDpcBehaviorInformation = 0x18,SystemFullMemoryInformation = 0x19,SystemLoadGdiDriverInformation = 0x1a,SystemUnloadGdiDriverInformation = 0x1b,SystemTimeAdjustmentInformation = 0x1c,SystemSummaryMemoryInformation = 0x1d,SystemMirrorMemoryInformation = 0x1e,SystemPerformanceTraceInformation = 0x1f,SystemObsolete0 = 0x20,SystemExceptionInformation = 0x21,SystemCrashDumpStateInformation = 0x22,SystemKernelDebuggerInformation = 0x23,SystemContextSwitchInformation = 0x24,SystemRegistryQuotaInformation = 0x25,SystemExtendServiceTableInformation = 0x26,SystemPrioritySeperation = 0x27,SystemVerifierAddDriverInformation = 0x28,SystemVerifierRemoveDriverInformation = 0x29,SystemProcessorIdleInformation = 0x2a,SystemLegacyDriverInformation = 0x2b,SystemCurrentTimeZoneInformation = 0x2c,SystemLookasideInformation = 0x2d,SystemTimeSlipNotification = 0x2e,SystemSessionCreate = 0x2f,SystemSessionDetach = 0x30,SystemSessionInformation = 0x31,SystemRangeStartInformation = 0x32,SystemVerifierInformation = 0x33,SystemVerifierThunkExtend = 0x34,SystemSessionProcessInformation = 0x35,SystemLoadGdiDriverInSystemSpace = 0x36,SystemNumaProcessorMap = 0x37,SystemPrefetcherInformation = 0x38,SystemExtendedProcessInformation = 0x39,SystemRecommendedSharedDataAlignment = 0x3a,SystemComPlusPackage = 0x3b,SystemNumaAvailableMemory = 0x3c,SystemProcessorPowerInformation = 0x3d,SystemEmulationBasicInformation = 0x3e,SystemEmulationProcessorInformation = 0x3f,SystemExtendedHandleInformation = 0x40,SystemLostDelayedWriteInformation = 0x41,SystemBigPoolInformation = 0x42,SystemSessionPoolTagInformation = 0x43,SystemSessionMappedViewInformation = 0x44,SystemHotpatchInformation = 0x45,SystemObjectSecurityMode = 0x46,SystemWatchdogTimerHandler = 0x47,SystemWatchdogTimerInformation = 0x48,SystemLogicalProcessorInformation = 0x49,SystemWow64SharedInformationObsolete = 0x4a,SystemRegisterFirmwareTableInformationHandler = 0x4b,SystemFirmwareTableInformation = 0x4c,SystemModuleInformationEx = 0x4d,SystemVerifierTriageInformation = 0x4e,SystemSuperfetchInformation = 0x4f,SystemMemoryListInformation = 0x50,SystemFileCacheInformationEx = 0x51,SystemThreadPriorityClientIdInformation = 0x52,SystemProcessorIdleCycleTimeInformation = 0x53,SystemVerifierCancellationInformation = 0x54,SystemProcessorPowerInformationEx = 0x55,SystemRefTraceInformation = 0x56,SystemSpecialPoolInformation = 0x57,SystemProcessIdInformation = 0x58,SystemErrorPortInformation = 0x59,SystemBootEnvironmentInformation = 0x5a,SystemHypervisorInformation = 0x5b,SystemVerifierInformationEx = 0x5c,SystemTimeZoneInformation = 0x5d,SystemImageFileExecutionOptionsInformation = 0x5e,SystemCoverageInformation = 0x5f,SystemPrefetchPatchInformation = 0x60,SystemVerifierFaultsInformation = 0x61,SystemSystemPartitionInformation = 0x62,SystemSystemDiskInformation = 0x63,SystemProcessorPerformanceDistribution = 0x64,SystemNumaProximityNodeInformation = 0x65,SystemDynamicTimeZoneInformation = 0x66,SystemCodeIntegrityInformation = 0x67,SystemProcessorMicrocodeUpdateInformation = 0x68,SystemProcessorBrandString = 0x69,SystemVirtualAddressInformation = 0x6a,SystemLogicalProcessorAndGroupInformation = 0x6b,SystemProcessorCycleTimeInformation = 0x6c,SystemStoreInformation = 0x6d,SystemRegistryAppendString = 0x6e,SystemAitSamplingValue = 0x6f,SystemVhdBootInformation = 0x70,SystemCpuQuotaInformation = 0x71,SystemNativeBasicInformation = 0x72,SystemErrorPortTimeouts = 0x73,SystemLowPriorityIoInformation = 0x74,SystemBootEntropyInformation = 0x75,SystemVerifierCountersInformation = 0x76,SystemPagedPoolInformationEx = 0x77,SystemSystemPtesInformationEx = 0x78,SystemNodeDistanceInformation = 0x79,SystemAcpiAuditInformation = 0x7a,SystemBasicPerformanceInformation = 0x7b,SystemQueryPerformanceCounterInformation = 0x7c,SystemSessionBigPoolInformation = 0x7d,SystemBootGraphicsInformation = 0x7e,SystemScrubPhysicalMemoryInformation = 0x7f,SystemBadPageInformation = 0x80,SystemProcessorProfileControlArea = 0x81,SystemCombinePhysicalMemoryInformation = 0x82,SystemEntropyInterruptTimingInformation = 0x83,SystemConsoleInformation = 0x84,SystemPlatformBinaryInformation = 0x85,SystemThrottleNotificationInformation = 0x86,SystemHypervisorProcessorCountInformation = 0x87,SystemDeviceDataInformation = 0x88,SystemDeviceDataEnumerationInformation = 0x89,SystemMemoryTopologyInformation = 0x8a,SystemMemoryChannelInformation = 0x8b,SystemBootLogoInformation = 0x8c,SystemProcessorPerformanceInformationEx = 0x8d,SystemSpare0 = 0x8e,SystemSecureBootPolicyInformation = 0x8f,SystemPageFileInformationEx = 0x90,SystemSecureBootInformation = 0x91,SystemEntropyInterruptTimingRawInformation = 0x92,SystemPortableWorkspaceEfiLauncherInformation = 0x93,SystemFullProcessInformation = 0x94,SystemKernelDebuggerInformationEx = 0x95,SystemBootMetadataInformation = 0x96,SystemSoftRebootInformation = 0x97,SystemElamCertificateInformation = 0x98,SystemOfflineDumpConfigInformation = 0x99,SystemProcessorFeaturesInformation = 0x9a,SystemRegistryReconciliationInformation = 0x9b,MaxSystemInfoClass = 0x9c,
} SYSTEM_INFORMATION_CLASS;

最后的JudgeLoadDriver()是用于判断驱动是否加载的核心函数，我们看下该函数具体是如何实现的，原理很简单，下面是对代码的详细解释：

  • 1.首先定义了一个函数指针NTQUERYSYSTEMINFORMATION m_NtQuerySystemInformation，并初始化一个UNICODE_STRING类型的变量NtQuerySystemInformation_Name，用于存放要获取的函数名NtQuerySystemInformation。
  • 2.调用MmGetSystemRoutineAddress函数获取NtQuerySystemInformation函数的地址，并将其赋值给m_NtQuerySystemInformation函数指针。如果获取失败，则返回1。
  • 3.调用m_NtQuerySystemInformation函数，并传入SystemModuleInformation作为参数，获取系统中所有模块的信息。如果获取失败，则返回1。
  • 4.分配内存，并将获取到的模块信息复制到分配的内存中。如果内存分配失败，则返回1。
  • 5.解析获取到的模块信息，检查是否有名为JudgeLoadDriver的模块被加载。如果有，则打印该模块的名称，并返回2。如果没有，则继续检查下一个模块。
  • 6.最后释放分配的内存，并返回0表示成功执行。
#include <ntifs.h>
#include <windef.h>
#include <stdlib.h>typedef NTSTATUS(*NTQUERYSYSTEMINFORMATION)(
IN ULONG SystemInformationClass,
OUT PVOID   SystemInformation,
IN ULONG_PTR    SystemInformationLength,
OUT PULONG_PTR  ReturnLength OPTIONAL);typedef struct _SYSTEM_MODULE_INFORMATION {HANDLE Section;PVOID MappedBase;PVOID Base;ULONG Size;ULONG Flags;USHORT LoadOrderIndex;USHORT InitOrderIndex;USHORT LoadCount;USHORT PathLength;CHAR ImageName[256];
} SYSTEM_MODULE_INFORMATION, *PSYSTEM_MODULE_INFORMATION;typedef enum _SYSTEM_INFORMATION_CLASS
{SystemBasicInformation = 0x0,SystemProcessorInformation = 0x1,SystemPerformanceInformation = 0x2,SystemTimeOfDayInformation = 0x3,SystemPathInformation = 0x4,SystemProcessInformation = 0x5,SystemCallCountInformation = 0x6,SystemDeviceInformation = 0x7,SystemProcessorPerformanceInformation = 0x8,SystemFlagsInformation = 0x9,SystemCallTimeInformation = 0xa,SystemModuleInformation = 0xb,SystemLocksInformation = 0xc,
} SYSTEM_INFORMATION_CLASS;// 判断当前Driver是否加载成功
ULONG JudgeLoadDriver()
{NTQUERYSYSTEMINFORMATION m_NtQuerySystemInformation = NULL;UNICODE_STRING NtQuerySystemInformation_Name;PSYSTEM_MODULE_INFORMATION ModuleEntry;ULONG_PTR RetLength, BaseAddr, EndAddr;ULONG ModuleNumbers, Index;NTSTATUS Status;PVOID Buffer;RtlInitUnicodeString(&NtQuerySystemInformation_Name, L"NtQuerySystemInformation");m_NtQuerySystemInformation = (NTQUERYSYSTEMINFORMATION)MmGetSystemRoutineAddress(&NtQuerySystemInformation_Name);if (m_NtQuerySystemInformation == NULL){DbgPrint("获取NtQuerySystemInformation函数失败！\n");return 1;}RetLength = 0;Status = m_NtQuerySystemInformation(SystemModuleInformation, NULL, 0, &RetLength);if (Status < 0 && Status != STATUS_INFO_LENGTH_MISMATCH){DbgPrint("NtQuerySystemInformation调用失败！错误码是：%x\n", Status);return 1;}Buffer = ExAllocatePoolWithTag(NonPagedPool, RetLength, 'lysh');if (Buffer == NULL){DbgPrint("分配内存失败！\n");return 1;}Status = m_NtQuerySystemInformation(SystemModuleInformation, Buffer, RetLength, &RetLength);if (Status < 0){DbgPrint("NtQuerySystemInformation调用失败 %x\n", Status);return 1;}ModuleNumbers = *(ULONG*)Buffer;ModuleEntry = (PSYSTEM_MODULE_INFORMATION)((ULONG_PTR)Buffer + 8);for (Index = 0; Index < ModuleNumbers; ++Index){BaseAddr = (ULONG_PTR)ModuleEntry->Base;EndAddr = BaseAddr + ModuleEntry->Size;if (BaseAddr <= (ULONG_PTR)JudgeLoadDriver && (ULONG_PTR)JudgeLoadDriver <= EndAddr){DbgPrint("模块名称是：%s\n", ModuleEntry->ImageName);return 2;}++ModuleEntry;}return 0;
}VOID UnDriver(PDRIVER_OBJECT driver)
{DbgPrint("驱动卸载成功 \n");
}NTSTATUS DriverEntry(IN PDRIVER_OBJECT Driver, PUNICODE_STRING RegistryPath)
{DbgPrint("hello lyshark \n");ULONG ul = JudgeLoadDriver();DbgPrint("驱动状态: %d \n", ul);Driver->DriverUnload = UnDriver;return STATUS_SUCCESS;
}

代码运行效果如下所示：

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