MFT Standard attribute data structure for the NTFS file system

Source: Internet
Author: User

The standard property of the MFT is the 0x10 property, which is a resident property. Because the type value of the Standard property is 0x10, the standard attribute is always the first property of the file or directory.

This standard property contains time-date attributes, divided into creation time, modification time, MFT change time, and last access time of the file. This standard property can also indicate whether a file is read-only, whether it is a system file, a compression, or a cryptographic property. The following table is the data structure of the standard attribute body

Offset byte (16 binary) Describe
00-07 Creation time
08-0f Last Modified Time
10-17 MFT Change Time
18-1f Last file access time
20-23

Sign

0x01: Read only; 0x02: hidden; 0x04: System;

0x20: archive; 0x40: equipment; 0x80: General;

0x100: temporary; 0x200: sparse; 0x400: reparse point;

0x800: Compress; 0x1000: Offline; 0x4000: Encryption

24-27 Maximum version number
28-2b Version number
2c-2f Category ID
30-47 No meaning

is the standard attribute seen by the MFT in the Winhex

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You can see that the standard attribute is a resident property, and the data structure of its property header is described in the previous chapters.

Attribute Head Split

0X00-0X03 10 00 00 00: Attribute type is 0x10 description is a standard property

0X04-0X07 60 00 00 00: Indicates that the standard attribute has 0x60 bytes, which is 90 bytes

0x08-0x08 00:00 indicates that this property is a resident property

0x09-0x09 00: Indicates a property name length of 0, which means that there is no property name

0x0a-0x0b 18 00: Indicates the attribute property name length, which is meaningless because it was previously known that there is no property name.

0x0c-0x0d 00 00: Indicates no special attributes

0x0e-0x0f 00 00: Attribute ID

0x10-0x13 48 00 00 00: Indicates that the size of the property body is 0x48 bytes

0x14-0x15 18 00: Indicates that the property header size is 0x18 bytes

Here is the part of the property body, starting with the 0x18 offset

0x18-0x1f:49 BF CE D1 01 file creation time

0x20-0x27:49 BF CE D1 01 Last modified

0x28-0x2f:49 BF, CE, D1, MFT change time

0x30-0x37:49 BF CE D1 01 last access time

0x38-0x3b:06 00 00 00 Flag

0x3c-3f:00 00 00 00 Maximum Version number

0x40-0x43:00 00 00 00 Version Number

0x44-0x47:00 00 00 00 Category ID


MFT Standard attribute data structure for the NTFS file system

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