IT Forensics – Windows
Forensic analysis of the USN Journal – tracking changes on Windows systems
The USN Journal (Update Sequence Number Journal) is a key artefact of the NTFS file system. It logs numerous changes to files and directories and can therefore provide valuable insights into file operations. As part of a professional Windows forensic investigation, the USN Journal is analysed alongside other artefacts in order to reconstruct technical processes as completely as possible.
The information contained in the USN Journal is never assessed in isolation. Only by correlating it with the Master File Table (MFT), the Windows Registry, event logs and other artefacts is it possible to reach reliable technical conclusions.
Why LanCologne?
Since its foundation, LanCologne has specialised in professional IT forensics. Our staff have decades of experience in the field of information technology and assist companies, solicitors, private individuals and, on a regular basis, the courts in the technical investigation of complex digital matters.
The examination is, as a matter of principle, carried out exclusively on a forensic copy or a forensic image. The original evidence remains unchanged and is stored in a manner that preserves its evidential integrity.
Our services
We analyse entries in the USN journal, correlate these with other Windows artefacts, and document all technical findings in a transparent manner. This often enables us to date file modifications, moves or deletions and compare them with other digital traces.
Typical areas of application
This is how a USN journal analysis works
Once a forensic image has been created, the USN journal is read out and analysed alongside other file system artefacts. The results are technically assessed, correlated with one another and fully documented. The aim is to objectively reconstruct the relevant events on the basis of verifiable digital traces.
Why is the USN Journal so important?
The USN Journal can record changes to files and directories, and as such often provides important insights into the chronological sequence of events within a Windows system. Together with other artefacts, it forms an essential part of modern Windows forensic investigations.
Frequently Asked Questions
LanCologne – Windows Forensics in Cologne
Do you need a professional analysis of the USN journal or other Windows artefacts? LanCologne can assist you with the forensic preservation of digital evidence and the traceable analysis of complex Windows systems.
Related to this topic