Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/dailyyarn/ctf-agent/ctf-forensicsnpx skills add dailyyarn/CTF-agent --skill ctf-forensicsgit clone --depth 1 https://github.com/dailyyarn/CTF-agentWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/dailyyarn/ctf-agent/ctf-forensics)<a href="https://agentmods.dev/skills/dailyyarn/ctf-agent/ctf-forensics"><img src="https://agentmods.dev/badge/skills/dailyyarn/ctf-agent/ctf-forensics.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00083 | $0.05612 |
| Opus 5 | $0.00042 | $0.02806 |
| Sonnet 5 | $0.00017 | $0.01122 |
| Haiku 4.5 | $0.00008 | $0.00561 |
Grade D, and why
ctf-forensics scanned grade D with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo mount -o loop,ro image.dd /mnt/evidence Reaches for credential fileshighPrivilege escalation
SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.
- **Chrome/Edge:** Decrypt `Login Data` SQLite with AES-GCM using DPAPI master key How it starts
The opening of the file, as written. The whole thing — 299 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CTF Forensics & Blockchain
Quick reference for forensics CTF challenges. Each technique has a one-liner here; see supporting files for full details.
Additional Resources
- 3d-printing.md - 3D printing forensics (PrusaSlicer binary G-code, QOIF, heatshrink)
- windows.md - Windows forensics (registry, SAM, event logs, recycle bin, USN journal, PowerShell history, Defender MPLog, WMI persistence, Amcache)
- network.md - Network forensics basics (tcpdump, TLS/SSL keylog decryption, TLS master key extraction from coredump, Wireshark, PCAP, port scanning, SMB3 decryption, 5G/NR protocols, WordPress recon, credentials, USB HID steno, BCD encoding, HTTP file upload exfiltration, split archive reassembly via timestamp ordering)
- network-advanced.md - Advanced network forensics (packet interval timing encoding, USB HID mouse/pen drawing recovery, NTLMv2 hash cracking, TCP flag covert channel, DNS last-byte steganography, DNS trailing byte binary encoding, multi-layer PCAP with XOR + ZIP and mDNS key, Brotli decompression bomb seam analysis, SMB RID recycling via LSARPC, Timeroasting MS-SNTP hash extraction)
- disk-and-memory.md - Disk/memory forensics (Volatility, disk mounting/carving, VM/OVA/VMDK, coredumps, deleted partitions, ZFS, VMware snapshots, ransomware analysis, GPT GUID encoding, VMDK sparse parsing, APFS snapshot recovery, Windows KAPE triage, WordPerfect macro XOR extraction, minidump ISO 9660 recovery, RAID 5 XOR recovery, Android forensics, Docker container forensics, cloud storage forensics)
- disk-recovery.md - Disk recovery and extraction patterns (LUKS master key recovery, PRNG timestamp seed brute-force, VBA macro binary recovery, FemtoZip decompression, XFS filesystem reconstruction, tar duplicate entry extraction, nested matryoshka filesystem extraction, anti-carving via null byte interleaving)
- steganography.md - Image steganography (binary border stego, PDF multi-layer stego, SVG keyframes, PNG reorder, file overlays, JPEG unused DQT table LSB, BMP bitplane QR extraction, image puzzle reassembly, F5 JPEG DCT ratio detection, PNG unused palette entry stego, QR code tile reconstruction, seed-based pixel permutation + multi-bitplane QR, JPEG thumbnail pixel-to-text mapping, conditional LSB with pixel filtering, GIF frame diff Morse code, GZSteg + spammimic)
- stego-advanced.md - Advanced steganography (FFT frequency domain, DTMF audio, SSTV+LSB, custom frequency dual-tone keypad, multi-track audio differential subtraction, cross-channel multi-bit LSB, audio FFT musical notes, audio metadata octal encoding, nested tar whitespace encoding, audio waveform binary encoding, audio spectrogram hidden QR, video frame accumulation, reversed audio)
- linux-forensics.md - Linux/app forensics (log analysis, Docker image forensics, attack chains, browser credentials, Firefox history, TFTP, TLS weak RSA, USB audio, Git directory recovery, KeePass v4 cracking, Git reflog/fsck squash recovery, browser artifact analysis (Chrome/Chromium/Firefox history, cookies, downloads, local storage, session restore), corrupted git blob repair via byte brute-force)
- signals-and-hardware.md - Hardware signal decoding with decode code (VGA frame parsing, HDMI TMDS symbol decode, DisplayPort 8b/10b + LFSR descrambler), Voyager Golden Record audio, Saleae Logic 2 UART decode, Flipper Zero .sub files, side-channel power analysis (DPA), keyboard acoustic side-channel
What ships with it
10 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 5d ago First seen · 299 lines · 83 tokens per session scan D 254a05fa625a
ctf-forensics is a skill published in the GitHub repository dailyyarn/CTF-agent (5 stars, last pushed 5mo ago), licensed MIT. It adds 83 tokens to every session and 5,612 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it D with 2 findings (asks for root, reaches for credential files). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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