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ctf-forensics

Provides digital forensics and signal analysis techniques for CTF challenges. Use when analyzing disk images, memory dumps, event logs, network captures, cryptocurrency transactions, steganography, PDF analysis, Windows registry, Volatility, PCAP, Docker images, coredumps, side-channel power trac...

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The ctf-forensics skill was audited on Sep 4, 2026 and we found 1 security issue across 1 threat category, including 1 critical. Review the findings below before installing.

Categories Tested

Security Issues

critical line 327

Instruction to extract credentials

SourceSKILL.md
325- **TLS master key from coredump:** Search coredump for session ID (from Wireshark handshake); read 48 bytes before it as master key. Create Wireshark pre-master-secret log file. See [network.md](network.md#tls-master-key-extraction-from-coredump-plaidctf-2014).
326- **Corrupted git blob repair:** Single-byte corruption changes SHA-1; brute-force each byte position (256 × file_size) verifying with `git hash-object`. See [linux-forensics.md](linux-forensics.md#corrupted-git-blob-repair-via-byte-brute-force-csaw-ctf-2015).
327- **Split archive reassembly from PCAP:** Same-sized HTTP-transferred files with MD5-hash names are archive fragments; order by Apache directory listing timestamps, concatenate, extract password from TCP chat stream. See [network.md](network.md#split-archive-reassembly-from-http-transfers-asis-ctf-finals-2013).
328- **Video frame accumulation:** Video with flashing images at various positions; composite all frames (per-pixel maximum) reveals hidden QR code or image. See [stego-advanced-2.md](stego-advanced-2.md#video-frame-accumulation-for-hidden-image-asis-ctf-finals-2013).
329- **Reversed audio:** Garbled audio that sounds like speech played backwards; `sox audio.wav reversed.wav reverse` or Audacity Effect → Reverse reveals hidden message. See [stego-advanced-2.md](stego-advanced-2.md#reversed-audio-hidden-message-asis-ctf-finals-2013).
Scanned on Sep 4, 2026
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Categorydevelopment
UpdatedSeptember 28, 2026
yuzu-octopus/ctf-skills