Ntfs file attributes editor

NTFS allows multiple data attributes per file. Each file typically has one unnamed data attribute. A file can also have one or more named data attributes, each using a particular syntax. Object ID A volume-unique file identifier.

Used by the distributed link tracking service. Not all files have object identifiers. This is used by EFS. Reparse Point Used for volume mount points. Since the sector start position is a large value of 20,,, it means that 4 byte size is required.

Since Cluster count has a value of 1, I use only 1 byte. It is also used to add security information to. For example, let C: testtest. NTFS has an area called extended attributes. This is similar to alternative data streams and is used like hidden data. However, we do not see much implementation yet. If you use the command "EaQuery We made a detailed representation of that part individualizing the different header fields with different color shadows in figure So being:.

In short : The chain is compose by one data run which tells us that the file occupies 1 cluster and begins at the offset h. Why more this information, since each MFT entry has already signaled if it is or not in use? With a Bitmap representing the condition of those entries we avoid reading all the MFT entries in the disk to know each one condition, what surely would be extremely time consuming. The 2 next attributes have different header structures from each other, as they have different classifications according residency and name.

So, we are going to present each one header and do its description inside each one of the attributes. They are referenced in the. The hexadecimal editor representation for that directory is in figure 35 , where lie the values type which we are going to analyze for these attributes.

Data Run The Data Runs are a virtual manner of cluster indexation. At this offset we can see the following bytes chain: 3 1 01 41 00 01 00 00 00 which we are going to decode. The Byte 3 1 as to be decomposed in its two digits half byte being: The lowest order half byte, the 1 , tells the number of bytes following this one which designate the size in clusters of the data block defined by this data run.

The highest order half byte, the 3 , tells the number of bytes following the ones which define the size which designate the offset where starts the data block that this data run defines. Finally the List and Definition of all the Attributes Figure 22 For the analysis of this frame we must use the table with the spaces occupation in figure 22 , where each attribute definition occupies A0h, or bytes.

The 4 Bytes from Ch to Fh are Flags , which can define 02h — Indexed 40h — Resident 80h — Non resident where the last two can combine with the first through the simple addition of their values.

So being: Its type is B0h. Its ID is 6. The initial and final VCN are 0, reason why it will occupy only 1 cluster.

It has 1 byte which defines its size and that byte, the first after the half byte 1 , has the value Thus, it occupies 1 cluster. It has 1 byte which defines it offset in clusters and that byte, which comes right after the byte 01 , has the value This means that it begins right after the 2nd cluster, i.

Normal i. Sparse file. Integrity for ReFS volume only; attribute not shown in Explorer. No scrub for ReFS volume only; attribute not shown in Explorer. Pinned OneDrive "always available files". Unpinned OneDrive "online-only files".

One slot is unknown; tell me if you discovered what it is. Eight slots are unknown. Silently ignore the "--" option. Default to list attributes of all files in current directory. Process each file. Attribute that are reserved and never have letters:.