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NTFS Journaling in Digital Forensics $LogFile, $UsnJrnl:- Analyzing of $J || $LogFile using Timeline explorer


Analyses of $J Output:


Understanding Column Headers:

As we dive into the USN journal, the column headers are mostly self-explanatory. However, there's one column that warrants special attention - the "Update Reasons" column. Here file create, file delete, and rename, which provide detailed information about each file-related action recorded in the journal.


Example Analysis:

Let's illustrate the power of the USN journal with an example. Suppose we search for an executable file named "apg.exe" and identify its entry number in the journal. By filtering the journal entries based on this entry number, we can observe a chronological timeline of events related to this file.


Reconstructing File Activity:

In this example, we observe a series of operations involving the file "apg.exe." We witness its creation, subsequent renaming to "demo.exe," another renaming to "demo2.exe," and finally, its deletion from the system. This sequence of events, captured in the USN journal, provides a comprehensive narrative of the file's journey on the system.




$LogFile analyses and parsing will update in future




Akash Patel

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