bulk_extractor — authorized disk-image feature extraction

Last updated: · By the BinBench editorial team · Stars and releases checked via the GitHub API
For legal, authorized and educational use only. Only analyze software you own or have written permission to examine.
Quick answer

bulk_extractor (simsong/bulk_extractor) extracts features from disk images you are authorized to examine. Cite v2.2.0 (2026-08-18 UTC). License is GPL-2.0.

On this page

Snapshot

FieldValue
LicenseGPL-2.0
Latest checkedv2.2.0 (2026-08-18 UTC)
JobScanner-based feature extraction on disk images
Peersbinwalk, Volatility 3, YARA

Allowed framing

  • Feature extraction on court-authorized or lab-owned disk images.
  • Teaching scanner/DFXML output shapes in DFIR courses.
  • Comparing feature files with YARA hits on the same authorized image.

Scope we will not cover

  • No unauthorized imaging of third-party media.
  • No exploit PoC cookbooks from carved content.
  • No “auto-defeat full-disk encryption” framing.

Beginner path (authorized only)

  1. Prefer a disposable analysis VM; keep evidence images read-only.
  2. Install/build from the v2.2.0 release assets (source tarball / published binaries); record SHA-256.
  3. Start with a tiny disk image you created; enable a small scanner set before -e all.
  4. Treat feature files as case material — restrict permissions and chain-of-custody notes.
  5. Escalate memory-only questions to Volatility 3.
Which to pick
  • Use bulk_extractor 2.2.0 for authorized disk-image feature extraction.
  • Prefer binwalk for firmware signatures and Volatility for RAM.
  • Refuse unauthorized acquisition and exploit framing.

For legal, authorized and educational use only.

FAQ

What is bulk_extractor?

bulk_extractor scans disk images and similar media for features (emails, URLs, EXIF, and other scanners) and writes feature files / DFXML-oriented output without mounting the filesystem as a live volume.

Which version is cited?

GitHub Release v2.2.0 (published 2026-08-18 UTC) on simsong/bulk_extractor — the 2.x stabilization line with integrated be20 sources (checked 2026-10-24).

What license applies?

GPL-2.0 (project packaging / LICENSE; checked 2026-10-24).

Binwalk/Volatility or bulk_extractor?

Prefer binwalk for firmware/embedded carving signatures and Volatility 3 for memory dumps. Prefer bulk_extractor when the job is bulk feature extraction across an authorized disk image.

Does this teach unauthorized disk imaging or exploits?

No. Authorized DFIR/education only — BinBench will not supply unauthorized acquisition recipes or exploit PoCs.

Sources