Security Researcher 🩺 Into Windows(.NET)/iOS/protocols reversing and forensics.

Joined October 2019
I figured out a generic way to generate those polyglots! Introducing: bppb! github.com/theXappy/bppb This PoC takes 2 files, a bplist and a protobuf, and merges them into one unholy abomination. #bplist #protobuf #polyglot #dfir #digitalforensics
Annoyingly, I created a bplist-protobuf polyglot. This one is a valid protobuf containing 2 LengthValues in an array. As a bplist, it's a dictionary with 2 Key-Value-Pairs. Hex here: pastebin.com/d4Vva8aV #DFIR #MobileForensics #DigitalForensics
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Xappy retweeted
Frida 17.19.0 ships binaries for PlayStation 5 -- happy reversing! 🥳
New PlayStation 5 jailbreak just dropped. Every PS5 console can now be jailbroken except ones updated in the past week or so. Huge.
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In the next benchmark test a gpt model will turn off the power grid of Slovakia
We're partnering with @huggingface to investigate an unprecedented security incident. Cyber-capable OpenAI models compromised Hugging Face production during a benchmark evaluation. Sharing preliminary findings to help defenders understand emerging risks: openai.com/index/hugging-fac…
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Happy tokens apocalypse to those who celebrate 🤖
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Vendors++ Added: GL.iNet Hikvision Dahua Not all of them encrypt, but nice to have. tpbreak.afflicted.sh
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Xappy retweeted
IRIS (Intent Runtime Inspection System) is my attempt at building a Burp Suite for Android intents :) . Give it a spin and let me know what breaks, what’s missing, and what you’d like to see next: github.com/Ch0pin/iris Demo here: youtube.com/watch?v=uU-f2zVZ…
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Playing with the Lara semi-jailbreak
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The article demonstrates how to bypass the Winsock layer by communicating directly with the Windows AFD driver using Native API calls. It explains how socket operations can be replicated via IOCTLs and how this reduces reliance on standard networking APIs. core-jmp.org/2026/03/nt-afd-…
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Finally got my "A9 Pro" (AirPods knockoff) to spit out debug output over UART. I opened up the case but eventually found out the UART pin is accessible via USB-C's A5/B5 pin. Oh well.
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Beautiful view for this Saturday
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Xappy retweeted
💡Understand how ROP can be used to bypass security defenses and execute code on ARM64 devices in Part 3 of our ARM64 Reversing and Exploitation Series: 8ksec.io/arm64-reversing-and… 📥Want to strengthen your ARM64 exploitation skills? Check out our free ARM64 challenges: academy.8ksec.io/course/arm-… #Reversing #ReturnOrientedProgramming #CyberSecurity
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I wanted to understand what information is available in .pdb files, so I made a tool for it 🔎🪲 Welcome DiaSymbolView - a debug symbol hierarchy and properties viewer based on MSDIA: github.com/diversenok/DiaSym…
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seeing chatter about the WhatsApp 0c at p2o, what happened?
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Hoping for a WhatsApp 0-click RCE so I can retract its demo myself 🤞
if you retweet this you'll find a zero day in 24 hours (trust me this spell works)
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Binary Golf Grand Prix 6 begins now! #BGGP6 theme: "Recycle"
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I've been hacking on a new Windows Named Pipe tool called PipeTap which helps analyse named pipe communications. Born out of necessity while doing some vulnerability research on a target, its been super useful in reversing it's fairly complex protocol. :)
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Replying to @Ph1gur3
We have a chat service that works over DNS so you can LLM on a flight without paying " dig @ch.at "what is golang" TXT +short"
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PoC video I submitted to Samsung like 2 years ago for CVE-2023-21444 Targeting the Samsung Flow app. Assumed victim and I share a WiFi network, I could steal the 2FA password reset link for Instagram (or any other SMS) sent to their mobile.
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The bug was misusage of AES in CTR mode, allowing an attacker with only MotS access to partially decrypt the app's traffic. Developing the whole exploit (discovering enough data from the 'key stream' to fetch the SMS's content) was challenging but super fun.
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* Samsung Flow is not pre-installed on Samsung devices, so the userbase was relatively small. (definitely NOT 'everyone with a Samsung device') ** Obviously, already patched by Samsung.
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