Forensics tools

Extract embedded files

Carve out the bytes starting at each detected file signature, up to the next signature or end of file.

Runs on your device. The file is never uploaded.

Extract embedded files carves out one segment per signature offset found anywhere in a file, each running to the next offset or to the end. Segments are named source, offset in hex and signature type, ending .bin, so photo.jpg-0x2a1c-zip-archive.bin. No per-format end marker is read, so a segment can run past where the real file stopped.

Input

Questions

How does it decide where each carved file starts and ends?

It starts at every offset where a known signature matched, and it ends at the next such offset or at the end of the file. That is the honest ceiling of a signature scan with no per-format parser: real end markers such as a PNG IEND chunk, a ZIP end-of-central-directory record or a JPEG FFD9 are not looked for. A carved segment can therefore run long, carrying padding or unrelated bytes after the real file.

What are the output files called?

The source name, the start offset in hex, and the signature type, all joined with dashes and ending in .bin. A ZIP found at 0x2a1c inside photo.jpg comes out as photo.jpg-0x2a1c-zip-archive.bin. Every segment gets .bin regardless of what it holds, so rename it before opening it in the application that reads that format.

Why did it say there was nothing to carve?

Because it found at most one signature. With none, the message says no signature was found; with one, it says only one signature, the file's own header, was found. Either way there is no second boundary to cut at, so nothing separate exists to extract. Run Scan for embedded files first to see the full match list before assuming a file is clean.

Why did I get a segment that is not a real file?

Because short signatures match by chance. Two-byte patterns like BM and 1f 8b appear constantly inside compressed data and images, and each one becomes a carve boundary. Check each segment with Detect file type before treating it as a find, and discard the ones that do not identify.

Can it recover a file that was deleted or partly overwritten?

Only if the bytes are still in the file you dropped and still start with a signature this table knows. There is no filesystem parsing, no slack space handling and no repair of a damaged header. A segment carved from the middle of a file is a best-effort copy of a byte range, not a verified recovery.

Which tool do I use first?

Scan for embedded files, which lists every signature offset without producing any files. Once you know what is where, either carve everything here or cut one exact range with Take bytes, which is the more precise option when you know where the payload ends.

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