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//0x30 bytes (sizeof)
struct _OBJECT_ATTRIBUTES
{
    ULONG Length;                                                           //0x0
    VOID* RootDirectory;                                                    //0x8
    struct _UNICODE_STRING* ObjectName;                                     //0x10
    ULONG Attributes;                                                       //0x18
    VOID* SecurityDescriptor;                                               //0x20
    VOID* SecurityQualityOfService;                                         //0x28
};