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win0環異常處理與Object-Hook

loading reac wpa nts procedure address create eric sep

0環下沒有veh
有seh

#include <ntifs.h>

VOID DriverUnload(PDRIVER_OBJECT pDriver);

NTSTATUS DriverEntry(PDRIVER_OBJECT pDriver, PUNICODE_STRING pPath)
{
    UNREFERENCED_PARAMETER(pPath);
    DbgBreakPoint();

    __try
    {
        int *p = 0;
        *p = 100;
    }
    except(1)
    {
        KdPrint(("哈哈:掠過了一個異常"));
    }
    pDriver->DriverUnload = DriverUnload;
    return STATUS_SUCCESS;
}
VOID DriverUnload(PDRIVER_OBJECT pDriver)
{
    UNREFERENCED_PARAMETER(pDriver);
}

Object-Hook
條件是要自己聲名相關結構(用的windbg查看)
問題是函數與平臺相關
例:
win32下

#include <ntifs.h>
VOID DriverUnload(PDRIVER_OBJECT objDriver);
typedef ULONG(*OBGETOBJECTTYPE)(PVOID Object);
typedef NTSTATUS(*PARSEPRODECEDURE)(IN PVOID ParseObject,
    IN PVOID ObjectType,
    IN OUT PACCESS_STATE AccessState,
    IN KPROCESSOR_MODE AccessMode,
    IN ULONG Attributes,
    IN OUT PUNICODE_STRING CompleteName,
    IN OUT PUNICODE_STRING RemainingName,
    IN OUT PVOID Context OPTIONAL,
    IN PSECURITY_QUALITY_OF_SERVICE SecurityQos OPTIONAL,
    OUT PVOID *Object);
PARSEPRODECEDURE g_OldFun;
NTSTATUS NewParseProcedure(IN PVOID ParseObject,
    IN PVOID ObjectType,
    IN OUT PACCESS_STATE AccessState,
    IN KPROCESSOR_MODE AccessMode,
    IN ULONG Attributes,
    IN OUT PUNICODE_STRING CompleteName,
    IN OUT PUNICODE_STRING RemainingName,
    IN OUT PVOID Context OPTIONAL,
    IN PSECURITY_QUALITY_OF_SERVICE SecurityQos OPTIONAL,
    OUT PVOID *Object)
{
    KdPrint(("Hook Success\n"));

    return g_OldFun(ParseObject, ObjectType, AccessState, AccessMode, Attributes,
        CompleteName,
        RemainingName, Context, SecurityQos, Object);
}
OBGETOBJECTTYPE g_OBGetObjectType;
//獲得一個函數地址,這個函數能夠通過內核對象得到內核對象的類型
VOID GetObjectTypeAddress()
{
    PUCHAR addr;
    UNICODE_STRING pslookup;
    RtlInitUnicodeString(&pslookup, L"ObGetObjectType");

    //               類似於應用層的GetProcAddress
    addr = (PUCHAR)MmGetSystemRoutineAddress(&pslookup);

    g_OBGetObjectType = (OBGETOBJECTTYPE)addr;
}
typedef struct _OBJECT_TYPE_INITIALIZER {
    USHORT Length;
    UCHAR ObjectTypeFlags;
    UCHAR CaseInsensitive;
    UCHAR UnnamedObjectsOnly;
    UCHAR  UseDefaultObject;
    UCHAR  SecurityRequired;
    UCHAR MaintainHandleCount;
    UCHAR MaintainTypeList;
    UCHAR SupportsObjectCallbacks;
    UCHAR CacheAligned;
    ULONG ObjectTypeCode;
    BOOLEAN InvalidAttributes;
    GENERIC_MAPPING GenericMapping;
    BOOLEAN   ValidAccessMask;
    BOOLEAN   RetainAccess;
    POOL_TYPE PoolType;
    BOOLEAN DefaultPagedPoolCharge;
    BOOLEAN DefaultNonPagedPoolCharge;
    PVOID DumpProcedure;
    ULONG OpenProcedure;
    PVOID CloseProcedure;
    PVOID DeleteProcedure;
    ULONG ParseProcedure;
    ULONG SecurityProcedure;
    ULONG QueryNameProcedure;
    UCHAR OkayToCloseProcedure;
} OBJECT_TYPE_INITIALIZER, *POBJECT_TYPE_INITIALIZER;
typedef struct _OBJECT_TYPE {
    LIST_ENTRY TypeList;
    UNICODE_STRING Name;
    PVOID DefaultObject;
    ULONG Index;
    ULONG TotalNumberOfObjects;
    ULONG TotalNumberOfHandles;
    ULONG HighWaterNumberOfObjects;
    ULONG HighWaterNumberOfHandles;
    OBJECT_TYPE_INITIALIZER TypeInfo;
    ULONG  TypeLock;
    ULONG   Key;
    LIST_ENTRY   CallbackList;
} OBJECT_TYPE, *POBJECT_TYPE;
HANDLE KernelCreateFile(
    IN PUNICODE_STRING pstrFile, // 文件路徑符號鏈接
    IN BOOLEAN         bIsDir)   // 是否為文件夾
{
    HANDLE          hFile = NULL;
    NTSTATUS        Status = STATUS_UNSUCCESSFUL;
    IO_STATUS_BLOCK StatusBlock = { 0 };
    ULONG           ulShareAccess =
        FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
    ULONG           ulCreateOpt =
        FILE_SYNCHRONOUS_IO_NONALERT;
    // 1. 初始化OBJECT_ATTRIBUTES的內容
    OBJECT_ATTRIBUTES objAttrib = { 0 };
    ULONG             ulAttributes =
        OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE;
    InitializeObjectAttributes(
        &objAttrib,    // 返回初始化完畢的結構體
        pstrFile,      // 文件對象名稱
        ulAttributes,  // 對象屬性
        NULL, NULL);   // 一般為NULL
    // 2. 創建文件對象
    ulCreateOpt |= bIsDir ?
    FILE_DIRECTORY_FILE : FILE_NON_DIRECTORY_FILE;
    Status = ZwCreateFile(
        &hFile,                // 返回文件句柄
        GENERIC_ALL,           // 文件操作描述
        &objAttrib,            // OBJECT_ATTRIBUTES
        &StatusBlock,          // 接受函數的操作結果
        0,                     // 初始文件大小
        FILE_ATTRIBUTE_NORMAL, // 新建文件的屬性
        ulShareAccess,         // 文件共享方式
        FILE_OPEN_IF,          // 文件存在則打開不存在則創建
        ulCreateOpt,           // 打開操作的附加標誌位
        NULL,                  // 擴展屬性區
        0);                   // 擴展屬性區長度
    if (!NT_SUCCESS(Status))
        return (HANDLE)-1;
    return hFile;
}
void OnHook()
{
    //1 隨便打開一個文件,得到一個文件對象
    UNICODE_STRING ustrFilePath;
    RtlInitUnicodeString(&ustrFilePath,
        L"\\??\\D:\\123.txt");
    HANDLE hFile = KernelCreateFile(&ustrFilePath, FALSE);
    PVOID pObject;
    ObReferenceObjectByHandle(hFile, GENERIC_ALL, NULL, KernelMode, &pObject, NULL);

    //2 通過這個文件對象得到OBJECT_TYPE這個結構體
    OBJECT_TYPE * FileType = NULL;
    FileType = (OBJECT_TYPE *)g_OBGetObjectType(pObject);
    //3 把這個函數地址保存起來
    g_OldFun = (PARSEPRODECEDURE)FileType->TypeInfo.ParseProcedure;
    //4 把這個函數地址替換為自己的函數。
    FileType->TypeInfo.ParseProcedure = (ULONG)NewParseProcedure;
}

void OffHook()
{

}

NTSTATUS DriverEntry(
    PDRIVER_OBJECT  pDriver,
    PUNICODE_STRING strRegPath)
{
    // 避免編譯器報未引用參數的警告
    UNREFERENCED_PARAMETER(strRegPath);
    // 打印一行字符串,並註冊驅動卸載函數,以便於驅動卸載
    DbgBreakPoint();//_asm int 3
    __try
    {
        GetObjectTypeAddress();
        OnHook();
    }
    except(1)
    {
        KdPrint(("掠過一個異常\n"));
    }
    KdPrint(("My First Dirver!"));
    pDriver->DriverUnload = DriverUnload;
    return STATUS_SUCCESS;
}
VOID DriverUnload(PDRIVER_OBJECT objDriver) {
    // 避免編譯器報未引用參數的警告
    UNREFERENCED_PARAMETER(objDriver);
    // 什麽也不做,只打印一行字符串
    KdPrint(("My Dirver is unloading..."));
}

win0環異常處理與Object-Hook