Jesse Michael @jessemichael
Portland Joined July 2008-
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kernel hackers go serverless ring0 → cloud 9 ☁️ ?? brb pwning yr gpu nodes ✨
#ESETresearch has discovered #HybridPetya ransomware on VirusTotal: a UEFI-compatible copycat of the infamous Petya/NotPetya malware. HybridPetya is capable of bypassing UEFI Secure Boot on outdated systems. @smolar_m welivesecurity.com/en/eset-resear… 1/8
An Amiga Demo With No CPU Involved hackaday.com/2025/09/02/an-…
consumer devices really don't stand a chance against motivated nerds.
consumer devices really don't stand a chance against motivated nerds. https://t.co/169aUKoUrO
Bootloader vulnerability and firmware decryption in TP-Link (Tapo) C210 cloud cameras watchfulip.github.io/28-12-24/tp-li… Credits @Watchful_IP #embedded #infosec
I did a writeup on exploiting the ASIO64.sys driver that was fuzzed from @vxunderground's vulnerable driver project. Nothing novel or complex, but I had fun writing the exploit: bad-jubies.github.io/exploiting-asi…
I've been asked countless times how to learn VR & xdev. The answer is always: "do something you think is cool". It's hard to figure out what to do. Try the PhrackCTF which I've now open-sourced. It's not a contrived CTF - modeled after real vulnerabilities github.com/xforcered/Phra…
At long last - Phrack 72 has been released online for your reading pleasure! Check it out: phrack.org
The Phrack Binary Exploitation CTF hasn’t been solved yet!! 2 challenges unlock #Phrack72 to the public. 1 Linux challenge and 1 Windows kernel challenge — based on my favorite real life bugs. Win an exclusive Phrack coin and get your write up on the website!
The Phrack Binary Exploitation CTF hasn’t been solved yet!! 2 challenges unlock #Phrack72 to the public. 1 Linux challenge and 1 Windows kernel challenge — based on my favorite real life bugs. Win an exclusive Phrack coin and get your write up on the website!
Here’s a video of an exploited Lenovo 510 FHD Webcam downloading a meterpreter payload from the internet and executing it, letting us send keystrokes to the computer it’s connected to, then return to being a regular unsuspecting webcam 😄 (Top left: webcam serial port output…
Going to @defcon?! We'll have 9500 print copies of Phrack, and Sunday @ noon @netspooky @richinseattle and @Chompie will be on main stage! info.defcon.org/content/?id=60…
@jessemichael and I got accepted to speak at @defcon and i hope that we can make our talk as entertaining as it should be😂 defcon.org/html/defcon-33…
SecureBoot bypass for UEFI-compatible firmware based on Insyde H2O coderush.me/hydroph0bia-pa… #uefi #infosec
The Journey of Bypassing Ubuntu’s Unprivileged Namespace Restriction Article by @u1f383 about the internals of the Ubuntu's implementation of restricting unprivileged user namespaces and figuring out another bypass method. u1f383.github.io/linux/2025/06/…
My 286-class CPU (real-mode only) is finally working in sim and we have PC-AT BIOS, VGA and IBM Basic working.😀 The CPU is written from scratch and uses a 5-stage pipeline, aiming to be fast enough to run early 90's games. The final core will be in between ao486 and PCXT_MiSTer.
My 286-class CPU (real-mode only) is finally working in sim and we have PC-AT BIOS, VGA and IBM Basic working.😀 The CPU is written from scratch and uses a 5-stage pipeline, aiming to be fast enough to run early 90's games. The final core will be in between ao486 and PCXT_MiSTer. https://t.co/kqw9ZQCuLx
OK I've uploaded my from-scratch 80286-like softcore CPU to github: github.com/nand2mario/z86 🚀 It is still a WIP. But it should be fairly complete, at least in simulation. 5-stage pipeline design like the 80486: Fetch, Decode1, Decode2, Execute, Write-Back.
OK I've uploaded my from-scratch 80286-like softcore CPU to github: github.com/nand2mario/z86 🚀 It is still a WIP. But it should be fairly complete, at least in simulation. 5-stage pipeline design like the 80486: Fetch, Decode1, Decode2, Execute, Write-Back.
Thanks @securelyfitz for not only supporting @Blackhoodie_RE with words but also donating **hardware** (all students got a hardware hacking kit which incl. Tigard, Bitmagic, and various cool tools) and helping us carry boxes, setting up the workstations, and cleaning up!!
Hydroph0bia (CVE-2025-4275) PoC - DXE volume takeover on HUAWEI MateBook 14 2023, flashing a patched BIOS with custom boot logo. No user interaction outside of the OS required, SecureBoot and firmware password remain enabled. coderush.me/hydroph0bia-pa…, coderush.me/hydroph0bia-pa…
The embargo (12:00 UTC 2025-06-10) is over, let's start a thread on Hydroph0bia (CVE-2025-4275), a trivial SecureBoot and FW updater signature bypass in almost any Insyde H2O-based UEFI firmware used since 2012 and still in use today. English writeup: coderush.me/hydroph0bia-pa…

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