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Adel

@0x4d31

security engineer

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05.11.2023
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Latest posts by Adel @0x4d31

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GitHub - 0x4D31/finch: Fingerprint-aware TLS reverse proxy. Use Finch to outsmart bad traffic—collect client fingerprints (JA3, JA4 +QUIC, JA4H, HTTP/2) and act on them: block, reroute, tarpit, or dec... Fingerprint-aware TLS reverse proxy. Use Finch to outsmart bad traffic—collect client fingerprints (JA3, JA4 +QUIC, JA4H, HTTP/2) and act on them: block, reroute, tarpit, or deceive in real time. -...

🫆 Finch v0.1.0 is live! ✨
excited to open-source another pet project: a fingerprint-aware TLS reverse proxy. use Finch to collect client fingerprints and act on them: block, reroute, tarpit, or deceive in real time!

go break it  & report bugs! github.com/0x4D31/finch

28.07.2025 15:06 👍 3 🔁 0 💬 0 📌 0

haha 🤷‍♂️ give oai o3 and o3-pro a try if you haven’t. at least they can reason better than half the people i’ve worked with.

20.06.2025 12:17 👍 0 🔁 0 💬 1 📌 0
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Using Timesketch for timeline analysis? We recently added a new feature: LLM summaries of up to 500 events in view. Example below uses Gemini Flash, but you can just as easily use a local Ollama model. Setup guide: timesketch.org/guides/user/...

19.06.2025 18:01 👍 6 🔁 4 💬 0 📌 1
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Investigating an "evil" RJ45 dongle Reverse-engineering hardware can be difficult -- but sometimes, all you need is a comfy armchair and some Google Translate.

Investigating an "evil" RJ45 dongle: lcamtuf.substack.com/p/investigat...

17.01.2025 10:14 👍 23 🔁 7 💬 0 📌 3
dig @.lmctfy -p 5353 -y hmac-sha256:mykey:SGVsbG8h "whats-the-meaning-of-life" TXT

dig @.lmctfy -p 5353 -y hmac-sha256:mykey:SGVsbG8h "whats-the-meaning-of-life" TXT

spent an afternoon over the holidays on a mini project, but it’s so silly i’m not sure it’s worth sharing. who else, besides me, would use `dig` and `ssh` to interact with an llm?
🤪 llm over dns—maybe to brainstorm with chatgpt during a long flight without paying for inflight internet!?

15.01.2025 11:50 👍 0 🔁 0 💬 0 📌 0
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My latest work has been published:

"CTU Hornet 65 Niner: A network dataset of geographically distributed low-interaction honeypots"

The dataset has a unique value for studying the nature of Internet attacks over time and their changes and characteristics.

www.sciencedirect.com/science/arti...

13.01.2025 10:26 👍 12 🔁 8 💬 0 📌 0
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Go Turns 15 - The Go Programming Language Happy 15th birthday, Go!

Go Turns 15 go.dev/blog/15years

12.11.2024 06:01 👍 391 🔁 67 💬 8 📌 9

I'm watching some folks reverse engineer the xz backdoor, sharing some *preliminary* analysis with permission.

The hooked RSA_public_decrypt verifies a signature on the server's host key by a fixed Ed448 key, and then passes a payload to system().

It's RCE, not auth bypass, and gated/unreplayable.

30.03.2024 17:13 👍 687 🔁 275 💬 7 📌 13

hello @bsky.app!
i hate the app icon and splash screen.

05.11.2023 23:03 👍 2 🔁 0 💬 0 📌 0