2016-08-23 102 views
0

我正在编写一个列出打开的文件句柄的程序。其实我得到的结果太多了。我的列表包含病毒扫描程序之类的东西。我得到一堆对象类型43,看起来不像我想要的。有没有这些值的列表在任何地方?是否有SYSTEM_HANDLE_ENTRY.ObjectType的可能值列表?

+1

这些都没有记录由MSFT。你的选择是为类型信息调用Nt/ZwQueryObject(),或者相信其他人对枚举的假设 - 例如。看看Process Hacker项目的源代码。 –

回答

2

您可以致电NtQueryObject与指定ObjectTypesInformation信息类。这会为您提供有关系统中当前注册的所有对象类型的信息。使用SYSTEM_HANDLE_ENTRY.ObjectType作为返回数组的索引,以获取有关相应对象类型的信息。或者,您可以使用NtQueryObjectObjectTypeInformation来获取有关给定对象(由其句柄指定)的类型信息。

此代码应检索所有类型的对象的信息。

typedef enum _OBJECT_INFORMATION_CLASS { 
    ObjectBasicInformation, 
    ObjectNameInformation, 
    ObjectTypeInformation, 
    ObjectTypesInformation, 
    ObjectHandleFlagInformation, 
    ObjectSessionInformation, 
} OBJECT_INFORMATION_CLASS; 

typedef struct _OBJECT_TYPE_INFORMATION { 
    UNICODE_STRING TypeName; 
    ULONG TotalNumberOfObjects; 
    ULONG TotalNumberOfHandles; 
    ULONG TotalPagedPoolUsage; 
    ULONG TotalNonPagedPoolUsage; 
    ULONG TotalNamePoolUsage; 
    ULONG TotalHandleTableUsage; 
    ULONG HighWaterNumberOfObjects; 
    ULONG HighWaterNumberOfHandles; 
    ULONG HighWaterPagedPoolUsage; 
    ULONG HighWaterNonPagedPoolUsage; 
    ULONG HighWaterNamePoolUsage; 
    ULONG HighWaterHandleTableUsage; 
    ULONG InvalidAttributes; 
    GENERIC_MAPPING GenericMapping; 
    ULONG ValidAccessMask; 
    BOOLEAN SecurityRequired; 
    BOOLEAN MaintainHandleCount; 
    ULONG PoolType; 
    ULONG DefaultPagedPoolCharge; 
    ULONG DefaultNonPagedPoolCharge; 
} OBJECT_TYPE_INFORMATION, *POBJECT_TYPE_INFORMATION; 

typedef struct _OBJECT_TYPES_INFORMATION { 
    LONG NumberOfTypes; 
// OBJECT_TYPE_INFORMATION TypeInformation [1]; 
} OBJECT_TYPES_INFORMATION, *POBJECT_TYPES_INFORMATION; 

NTSTATUS QueryObjectTypesInfo(POBJECT_TYPES_INFORMATION *TypesInfo) 
{ 
    ULONG StartBufferLength = 28; 
    ULONG BufferLength = 0; 
    NTSTATUS status = 0xC0000001; 

    status = STATUS_SUCCESS; 
    *TypesInfo = (POBJECT_TYPES_INFORMATION)malloc(StartBufferLength); 
    if (*TypesInfo != NULL) { 
    status = NtQueryObject(NULL, ObjectTypesInformation, TypesInfo, StartBufferLength, &BufferLength); 
    if (status == STATUS_INFO_LENGTH_MISMATCH) { 
     *TypesInfo = NULL; 
     while (status == STATUS_INFO_LENGTH_MISMATCH) { 
     if (*TypesInfo != NULL) 
      free(*TypesInfo); 

     *TypesInfo = (POBJECT_TYPES_INFORMATION)malloc(BufferLength); 
     if (*TypesInfo != NULL) 
      status = NtQueryObject(NULL, ObjectTypesInformation, *TypesInfo, BufferLength, &BufferLength); 
     else status = STATUS_INSUFFICIENT_RESOURCES; 
     } 

     if (!NT_SUCCESS(status)) { 
     if (*TypesInfo != NULL) { 
      free(*TypesInfo); 
      *TypesInfo = NULL; 
     } 
     } 
    } 
    } else status = STATUS_INSUFFICIENT_RESOURCES; 

    return status; 
} 

正如上面的评论所述,这个东西是相当无证的。然而,上面的代码(稍作修改..例如,你需要得到NtQueryObject程序的地址,并定义一些NTSTATUS contants)对我的作品在64位Windows 8.1。

对于一个完整的代码(这是很旧的和在捷克评论),从我的(捷克)网站上下载这个项目: https://jadro-windows.cz/download/ntqueryobject.zip

使用qo.exe --list-types命令获取类型信息

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