Surviving a Master File Table (MFT) Destruction
Every hard drive has an index called the Master File Table (MFT). It acts like the table of contents in a book, telling the operating system exactly where every photo, document, and database is physically located on the disk.
When a drive is formatted, severely corrupted, or hit by ransomware, the MFT is often destroyed. To standard recovery software, the drive looks completely blank because the "table of contents" is gone. However, the actual "pages" of the book—your data—are still written on the disk.
Reading the Raw Hexadecimal
When automated tools fail, we bypass the operating system entirely. Every file type has a unique digital fingerprint in its raw binary code, known as a hexadecimal signature.
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A JPEG image always starts with the hex values
FF D8 FF E0. - A standard PDF always begins with
25 50 44 46.
The Carving Process Using X-Ways Forensics
While automated forensic suites like Autopsy are great for quick triage, they struggle to piece together highly fragmented data without an MFT.
We utilize X-Ways Forensics for granular, sector-level analysis. During file carving, we instruct the software to ignore the missing file system and scan the raw physical sectors of the drive. We search specifically for those unique hexadecimal headers and footers. Once we find the "start" and "end" signatures of a file, we "carve" that block of data out of the raw binary, reconstructing the original document from the ashes of the destroyed drive.