@hexkyz

Vulnerability researcher, reverse engineer and InfoSec enthusiast. Opinions are my own.

 London, England
hexkyz.blogspot.com
Joined August 2016
  • Tweets1.4K
  • Following194
  • Followers8.1K
4Media
Insert "It's been 3000 years…" meme here. sha512sum mariko_feks.bin 065ad23e65bae859096ba1f9886a4da5d15a37266bedc2c6e1b2f27e153764b0844a90b1775ad47a0b50dc72c5bbc768027a1868a10de94807ca4e5e828b6872
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Mike Heskin retweeted
pepsipu@pepsipuOct 22
i jailbroke the nintendo switch 2 so i modded cinnamoroll, peter griffin, hatsune miku, and more into Mario Kart World, a switch 2 exclusive now watch my friends and i get cooked by bots learn more and get the exploit pepsipu.com/blog/2026-10-swi…

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Happy June 15th! Atmosphère 1.12.1 is now released: github.com/Atmosphere-NX/Atm… This release addresses the issues with dns.mitm, fs.mitm and the browser patches. Please check the release notes for a detailed explanation. Enjoy! :)

Release Atmosphère 1.12.1 · Atmosphere-NX/Atmosphere

1.12.1 is Atmosphère's ninety-fourth official release. Please be sure to update fusee when upgrading to 1.12.1. fusee-primary no longer exists, and will not work any more. With thanks to the @s...

github.com
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Mike Heskin retweeted
CTCaer@CTCaerSep 28
hekate 6.5.4 and Nyx 1.9.4 are now released! - HOS 23.0.0 support Check release log for more!
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June 15th, at last! Atmosphère 1.12.0 is now released: github.com/Atmosphere-NX/Atm… Sorry for the delay. 23.0.0 not only changed stuff that hasn't been changed in years but also created new memory shortage issues. Please check the release notes for a detailed explanation. Enjoy! :)

Release Atmosphère 1.12.0 · Atmosphere-NX/Atmosphere

1.12.0 is Atmosphère's ninety-third official release. Please be sure to update fusee when upgrading to 1.12.0. fusee-primary no longer exists, and will not work any more. With thanks to the @sw...

github.com
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Mike Heskin retweeted
CTCaer@CTCaerJun 16
hekate 6.5.3 and Nyx 1.9.3 are now released! - HOS 22.5.0 support - SD info improvements Check release log for more!
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June 15th... on the 16th! We were on the verge of greatness, we were this close. Atmosphère 1.11.2 is now released: github.com/Atmosphere-NX/Atm… This is the usual version bump to support the new 22.5.0 firmware plus a few miscellaneous fixes. Enjoy! :)

Release Atmosphère 1.11.2 · Atmosphere-NX/Atmosphere

1.11.2 is Atmosphère's ninety-second official release. Please be sure to update fusee when upgrading to 1.11.2. fusee-primary no longer exists, and will not work any more. With thanks to the @s...

github.com
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Somehow, it's June 15th again! Atmosphère 1.11.1 is now released: github.com/Atmosphere-NX/Atm… This is just the usual version bump to support the new 22.1.0 firmware. Enjoy! :)

Release Atmosphère 1.11.1 · Atmosphere-NX/Atmosphere

1.11.1 is Atmosphère's ninety-first official release. Please be sure to update fusee when upgrading to 1.11.1. fusee-primary no longer exists, and will not work any more. With thanks to the @sw...

github.com
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June 15th comes once again! Atmosphère 1.11.0 is now released: github.com/Atmosphere-NX/Atm… This adds support for 22.0.0. Special thanks to @__alula for their invaluable contributions! Enjoy! :)

Release Atmosphère 1.11.0 · Atmosphere-NX/Atmosphere

1.11.0 is Atmosphère's ninetieth official release. Please be sure to update fusee when upgrading to 1.11.0. fusee-primary no longer exists, and will not work any more. With thanks to the @switc...

github.com
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Mike Heskin retweeted
Michael@SciresMJan 27
gist.github.com/SciresM/e760…

Retiring.txt

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gist.github.com
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You can find the scripts I wrote for decrypting the update files (all versions) and the VM (version 1.1.4 only for now) here: gist.github.com/hexkyz/a2366… gist.github.com/hexkyz/0df2e… Or in the mig_research project here: github.com/15432/mig_researc…

mig_unpack.py

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Thanks to the great work done by 15432, we can finally decrypt the MIG flashcart firmware code. Here's what we've learned so far (1/9). github.com/15432/mig_researc…
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7) Decrypting the "update.s2" file is a matter of stripping away a first layer of TEA encryption, parsing metadata, decrypting the actual firmware code with the right AES key and, finally, deobfuscating the resulting plaintext through their custom XOR-based algorithm. (8/9)
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8) This last XOR-based algorithm is an absolute abomination of mixing random values and multiple seed sources just to make it as hard as possible to reverse engineer (even Ghidra wasn't able to produce an accurate decompilation of it, despite having support for Xtensa). (9/9)
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Mike Heskin retweeted
Michael@SciresM30 Apr 2025
This is a major update, so Atmosphere will be broken until updated. Thank you all for your patience!
ylws8bot (@[email protected])@ylws8bot30 Apr 2025
Sysupdate detected for Switch: yls8.mtheall.com/ninupdates/…
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