John Wu @topjohnwu Twitter profile

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John Wu

@topjohnwu

8 months

Magisk v27.0 published to public beta!

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Last Seen Profiles

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John Wu

@topjohnwu

3 years

It's official! 🎉🎉 Starting today, I'm joining the Android Platform Security team @Google 🤠 I'm very excited to collaborate along side with talented people that used to be "on the other side". Really looking forward to what I'll be working on in the future!

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John Wu

@topjohnwu

3 years

MAGISK IS BACK

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John Wu

@topjohnwu

5 years

So yeah, it's official. I'll be working @Apple for the next 4 months as an intern. Heading straight to the dark side. #MayThe4thBeWithYou

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John Wu

@topjohnwu

6 years

Android Q is officially rooted (before any official build is available). Weird flex but OK 😜

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John Wu

@topjohnwu

3 years

Magisk on Windows?

Android Police

@AndroidPolice

3 years

Microsoft engineer: Windows 11 will let you sideload Android apps

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John Wu

@topjohnwu

2 years

Turned 27 today, time really flies huh. Still felt like yesterday when I wrote the first line of code of Magisk, then all of a sudden I’m working on Android security at Google 🤣. Thank you for all the support along the way!

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John Wu

@topjohnwu

2 years

The fact that Google Play still can't download apps in parallel pisses me off. Having worked on Android's package manager myself, I understand that supporting parallel "installs" aren't realistic, but downloading APKs in parallel + queuing the installation in series IS possible.

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John Wu

@topjohnwu

3 years

I understand that being the developer of a popular open source project, people are *longing* for an explanation. However, the speculation and conspiracy theories are getting out of hand, there are even attempts to sabotage my employment in the name of "saving the community"...

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John Wu

@topjohnwu

4 years

iOS for work, Android for fun Swift by day, Kotlin at night Awake with Obj-C, asleep with C++ Just another lovely day of topjohnwu

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John Wu

@topjohnwu

4 years

Android 11 is going in the right direction. Normal apps should not know a f**k about: • List of user files (fixed by scoped storage) • List of installed apps (fixed by package visibility) Now please add a new one to the list: • Unlock state of the bootloader #UnlockAndroid

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John Wu

@topjohnwu

6 years

🎉🎉🎉

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John Wu

@topjohnwu

3 years

So please, PLEASE, put down your tinfoil hats and pitchforks, and allow me to handle the situation privately. I will update you once there is a conclusion. Nobody is hired to kill off a project. I did not join Google for money. And of course, I have not betrayed the community.

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John Wu

@topjohnwu

4 years

Android 11 Beta 1 Rooted by Magisk

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John Wu

@topjohnwu

3 years

Published Magisk v24.0 🎉🎉 Available on the public beta channel. Will wait for a few days, and if all is good, I'll release it to the stable channel.

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John Wu

@topjohnwu

2 years

I recently got the chance to know how many devices are running Magisk (yes, some teams at Google are tracking Magisk usage closely 🕵️), and the number is actually INSANE. Also, it only counts devices running GMS; I know for a fact that there is a substantial userbase in China.

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John Wu

@topjohnwu

3 years

One thing I found out after working both at Google and Apple: many engineers working on Android know nothing about iPhones, and many engineers working on iOS know nothing about Android. And by nothing I don't mean the technical aspects, I mean like general features and stuff.

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John Wu

@topjohnwu

3 years

People calling me a traitor or imposter really disgusts me and makes me wonder why am I even spending time defending the community within Google. I've been looped into so many conversations at Google for this, you have no idea what's happening behind the scenes.

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John Wu

@topjohnwu

4 years

Magisk v21.0 release! 🎉🎊 Android 11 support, completely redesigned Magisk Manager, Safe Mode detection, and much much more!

2020.10.3 Magisk v21.0

The Magic Mask for Android

topjohnwu.github.io

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John Wu

@topjohnwu

4 years

I can't believe I have been doing this Magisk thing for 4 years now

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John Wu

@topjohnwu

3 years

Saw this on Reddit, this is outrageous if true...

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John Wu

@topjohnwu

6 years

Hello World! Here's the certificate for finishing the military service. Officially returned from hell. Development will soon be back on track 🤩

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John Wu

@topjohnwu

5 years

Apparently I am getting sued for a CEO unlocking his bootloader and causing his bank apps to stop working.

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John Wu

@topjohnwu

5 years

👀

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John Wu

@topjohnwu

3 years

I'm gonna reveal some big news before #GoogleIO , stay tuned 👀

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John Wu

@topjohnwu

5 years

Next step: Magisk...?!

switchroot

@switchroot_org

5 years

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John Wu

@topjohnwu

5 years

Here you go guys, give it a read 😉

Huawei’s Undocumented APIs — A Backdoor to Reinstall Google Services

A few clicks, and Google Services are back. Sounds good, right?

topjohnwu.medium.com

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John Wu

@topjohnwu

3 years

More details to come later, stay tuned

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John Wu

@topjohnwu

6 years

Magisk is over 2 years old! Some random stats: Magisk zip downloads: 40M Estimated active users: 1M+ Average stable release downloads: 5-6M Can't wait for 2019, and thanks for the huge support all along!

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John Wu

@topjohnwu

4 years

Magisk has been downloaded 142M times since release. What an insane amount of downloads 🤯, thank you for all the support along the way!

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John Wu

@topjohnwu

3 years

The amount of people saying Magisk is dead immediately is so funny TBH. It's trivial to create a whatever hiding module if you want, and I'm 10000% sure something like this will pop up as soon as possible. I'm just not in the position to lead nor assist such effort in the future.

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John Wu

@topjohnwu

5 years

Returned all equipment, my badge, and my @Apple internship is officially over. I was grateful to be given the opportunity to design a project mostly by myself, and it'll be one of the important parts of Siri's future. (Yes, I stole the name tag from my office, because why not 😜)

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John Wu

@topjohnwu

5 years

After days of thinking, I finally constructed a new setup for MagiskInit in my mind. The new design fundamentally changes how Magisk runs on system-as-root devices. Not only will it be undetectable, system-only installable, but also ready for Android Q and logical partitions.

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John Wu

@topjohnwu

3 years

So apparently MagiskHide is dead before I killed it officially LMAO. People are bombarding me with ctsProfile mismatches. And of course, someone already found a way to circumvent it. Just another proof that the community doesn't need me to lead the hiding effort 🤷‍♂️

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John Wu

@topjohnwu

3 years

Woot, wasn't aware it passed 20k stars on GitHub!

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John Wu

@topjohnwu

5 years

So here we go, after years of fun messing around using Magisk, it seems that Google FINALLY decided to "fix" SafetyNet to something useful, and that is to use key attestation to verify device status (after 3 years since introduced to Android's platform!)

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John Wu

@topjohnwu

3 years

After taking a long break from Magisk for almost a month due to vacation + burnout, man it feels so good to work on Magisk again. It reminded me why I created it in the first place and continue working on it after so many years.

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John Wu

@topjohnwu

4 years

I advocate @AndroidDev to restrict hardware-backed SafetyNet evaluation to "real" security sensitive apps. Developers should go through an application process to qualify this level of API access. It is ridiculous for McDonalds to refuse to run on a bootloader unlocked device.

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John Wu

@topjohnwu

3 years

I want to clarify that I do NOT work on SafetyNet at Google. Even though I did have some experience "messing" with it in the past, I do not speak for the team developing it, and all opinions regarding SafetyNet are my personal thoughts.

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John Wu

@topjohnwu

3 years

State of Magisk: 2021

Ever since my employment at Google, crazy speculations has been spreading like wild fire all over the Internet. The out-of-context private…

topjohnwu.medium.com

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John Wu

@topjohnwu

4 years

60 days without root, this bad boy finally get some Magisk love 🥰🥰

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John Wu

@topjohnwu

2 years

There are quite some discussion around Android 13 bumping the anti-rollback protection on Pixel 6, and people are shitting on Google for this. Not sure how much I'm allowed to disclose so I'll just say this: this decision is not made lightly; it's done because it's necessary.

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John Wu

@topjohnwu

3 years

Yup, we managed to get kernel assisted SU up and running in WSA, which bootstraps Magisk using my emulator scripts, and the rest is business as usual. (Also by "we", I mean Magisk + Riru + LSPosed folks as we are in close collaboration)

LoveSy

@shanasaimoe

3 years

@topjohnwu Maigsk, Riru, and LSPosed are now working on WSA🥳

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John Wu

@topjohnwu

5 years

It turns out I've done everything correctly yesterday. Just some stupid typo 🤪. So here you go, the world's first logical partition root, full Magisk support on Q beta 4, Pixel 3 XL.

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John Wu

@topjohnwu

3 years

👀 Expect to pass 200M downloads within 24 hours

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John Wu

@topjohnwu

4 years

#AndroidMagiskRace

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John Wu

@topjohnwu

5 years

Wonder why it is possible for the new Huawei devices to install a "random" 3rd party app and gain Google Play Service with a single tap? I dug deeper and found something... let's say "interesting". Expect more details coming soon. Bottom line: DO NOT BUY AND USE HUAWEI DEVICES

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John Wu

@topjohnwu

3 years

I have decided that Magisk v22 will be the last major version to support anything lower than Android 5.0. The next major release with the version bump will drop Kitkat and Jellybean support.

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John Wu

@topjohnwu

3 years

If I'm really a traitor, why will I continue developing Magisk at all? I can also just directly submit code into to SafetyNet and specifically target and fuck over every single "hiding"modules out there. Do not tempt me.

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John Wu

@topjohnwu

5 years

"magiskmanager dot com" is *NOT* an official website. Although the website does not distribute malware as they redirect downloads to my GitHub releases, the owner of the website is still "stealing" ad revenue from an open source project without the permission from the owner (me).

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John Wu

@topjohnwu

3 years

PSA: MagiskHide of Magisk v23.0 no longer passes SafetyNet, even with BASIC evalType. Tested on my Pixel 4 XL running stock Android 12 with vanilla Magisk v23.0. MagiskHide is *officially* dead. If you need any kind of root hiding, it's the perfect time to find alternatives.

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John Wu

@topjohnwu

5 years

Today I was at Apple's Intern Celebration event and sat down at a table doing some casual chatting. Then I found out 5 out of 7 (including me) of us are using Android phones.

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John Wu

@topjohnwu

2 years

Just a reminder that rooting Android is nowhere near dead, and is here to stay 😉

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John Wu

@topjohnwu

1 year

Magisk v26.2 released to public beta 🎉

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John Wu

@topjohnwu

5 years

Magisk Manager will soon have/support: - Random package names - User defined app name - Obfuscated classes - Obfuscated resources - All of those above, plus loading full app with a stub APK, meaning everything can be 100% randomized

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John Wu

@topjohnwu

4 years

macOS: ban all kernel space extensions, forcing all 3rd party drivers to run in userspace Linux: GPL the driver source code and upstream it, or else GTFO Windows: let's allow games to have anti-cheat kernel drivers to crash the whole system with BSOD 🤪

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John Wu

@topjohnwu

4 years

Almost there. Magisk v21 incoming in a few days.

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John Wu

@topjohnwu

3 years

BTW just saying, I've done a major portion of the core implementation of the "Auto Translation" feature that was presented in #WWDC21 before joining Google 😉

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John Wu

@topjohnwu

5 years

World's first "REAL" system-as-root root implementation is finally done! (Not release yet) This means proper Android Q support, and also the basis of logical partition support!

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John Wu

@topjohnwu

3 years

People dunking on Apple’s ProMotion (aka 120Hz dynamic refresh rate) on iPhone 13 Pro should calm down a bit. Yes, many Android devices had high refresh rate displays for many years, but real dynamic refresh rate only really started to happen last year (Note 20 ultra / Z Fold 2)

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John Wu

@topjohnwu

2 years

root

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John Wu

@topjohnwu

3 years

Sneak peek of the slides for tomorrow's tech talk. Rooting Android is sooooo easy 🤷‍♂️

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John Wu

@topjohnwu

5 years

Magisk v20.0 just landed on the stable channel 🎉🎉🎉 Android 10 is now basically supported all across the board, enjoy!

Release Magisk v20.0 · topjohnwu/Magisk

The following release notes are mostly the same as v19.4. Compared to v19.4 beta, the most notable change is adding tons of support for more devices on Android 10, along with several bug fixes. New...

github.com

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John Wu

@topjohnwu

5 years

Please be aware I will no longer update the XDA Magisk threads as I am moving 100% to GitHub only. The GitHub page will be updated with more info and hopefully look nicer and more clear.

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John Wu

@topjohnwu

3 years

This is putting extreme strain on me mentally, so let me get the facts straight: nobody really knows exactly how things will go in the future. I tweeted an assumption caused by miscommunication; I was informed it to be non factual; I deleted the tweet. That's all, really.

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John Wu

@topjohnwu

3 years

I love the fact that after watching so many anime, manga, J-POP, and vtubers, my Google feed now thinks I'm Japanese and doesn't even bother pushing any Chinese content to me. I'm officially a weeb verified by Google algorithm.

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John Wu

@topjohnwu

5 years

I am not paid to maintain Magisk. Get this: what I got from donations per month is less than what Apple pays me in 3 days. So yeah, I maintain Magisk out of my passion and the opportunity to learn new things. Please don't ruin the fun for me to continue rooting Android.

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John Wu

@topjohnwu

5 years

┏━━┓┏━━┓┏━━┓┏━━┓ ┗━┓┃┃┏┓┃┗━┓┃┃┏┓┃ ┏━┛┃┃┃┃┃┏━┛┃┃┃┃┃ MOAR MAGISK ┃┏━┛┃┃┃┃┃┏━┛┃┃┃┃ ┃┗━┓┃┗┛┃┃┗━┓┃┗┛┃ ┗━━┛┗━━┛┗━━┛┗━━┛

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John Wu

@topjohnwu

5 years

Did anyone ask for Magisk running on Android 10 on A-only devices? 🤔🤔

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John Wu

@topjohnwu

4 years

The hostility from Google to bootloader-unlocked users is tempting me to seriously spend effort on de-Googlefy Android using Magisk in a safe and convenient way, as custom ROMs are not always stable, feature complete, or even possible on many devices. Some thoughts 👇

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John Wu

@topjohnwu

4 years

Massive update: I managed to port the advanced app hiding technique: loading full APK with a stub app that was originally limited to Android 9.0+, all the way down to Android 5.0 🎉🎊

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John Wu

@topjohnwu

10 months

Reverse engineering and sending iMessages on non Apple devices is fun. I mean, I started my Magisk journey with bypassing root detection, so of course I love these stuff. What rubs me the wrong way with the whole Beeper thing is that they are trying to make a business out of it.

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John Wu

@topjohnwu

3 years

I know a lot of you have been waiting for this... I just released Magisk v23.0! Moar bug fixes!

Release Magisk v23.0 · topjohnwu/Magisk

This release is focused on fixing regressions and bugs. Note: Magisk v22 is the last major version to support Jellybean and Kitkat. Magisk v23 only supports Android 5.0 and higher. Bug Fixes [App]...

github.com

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John Wu

@topjohnwu

3 years

I came up with an extremely wild and novel "hack" to inject sepolicy and IT ACTUALLY WORKED!!! It has been quite a while since I'm this excited about Magisk. GOD I ❤️ THIS PROJECT SO MUCH

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John Wu

@topjohnwu

3 years

Even Apple understands that using lightning ports is a crime. They literally made USB-C a selling point for the new iPad Mini.

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John Wu

@topjohnwu

5 years

Android is freaking nuts. It is BIZARRE to me that Android allows any app to get a list of installed apps. Not only that, you can ANALYZE the content of ANY installed APK. Who the f**k think this is good idea. This basically makes hiding Magisk Manager a mission impossible.

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John Wu

@topjohnwu

5 years

Some people say it is unfair for US to attack Huawei. Why don't I see people say it is unfair for China to block Google, Facebook, Twitter, Instagram and tons of other US based services?

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John Wu

@topjohnwu

4 years

✓ Unlock BL and root ✓ Delete all Samsung and Microsoft crapware ✓ Force disable all unremovable Samsung crapware with root ✓ Change keyboard and auto fill service to Google ✓ Switch launcher to @lawnchairapp ✓ Happy life

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John Wu

@topjohnwu

3 years

60Hz is pain

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John Wu

@topjohnwu

4 years

Finally finished updating all Magisk documentation with updated installation instructions (not public yet) Magisk v21 will be released tonight (Friday), stay tuned!

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John Wu

@topjohnwu

5 years

Magisk Manager's main source code is officially Java free! All classes has been converted to Kotlin 🙃

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John Wu

@topjohnwu

4 years

2020 is officially deprecated. Hope y'all have a smooth migration to 2021 😁

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John Wu

@topjohnwu

3 years

Am I the odd one that have interest in both mobile OSes? After all, I'm that weirdo who uses Pixel at Apple, and iPhone at Google (in the Android team) LMAO

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John Wu

@topjohnwu

4 years

Just rewritten the last bit of C code in Magisk with C++. The native part is basically 100% C++ now 😁

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John Wu

@topjohnwu

5 years

Everyone is wearing masks due to the Coronavirus, and I found out one issue... I can no longer unlock my Pixel 4 XL because my face is masked 😅. Now I miss fingerprint scanners.

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John Wu

@topjohnwu

5 years

Thank you all for the kind and encouraging words you sent me after I tweeted about burning out. I have slowed down a bit and relaxed for a while, definitely used to put too much pressure on myself. My coding addiction kicks in and I'm fine now, right back to deving 🤓

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John Wu

@topjohnwu

5 years

I don't understand why people still believe whatever antivirus apps say about Magisk Manager 🙄. Look, Magisk Manager is an OPEN SOURCE app. Just avoid downloading it from ANYWHERE other than my GitHub release page. Deal?

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John Wu

@topjohnwu

4 years

New major release: Magisk v22.0! Magisk Manager is dead. Long live the Magisk app. Bug fixes, wider app hide support, and more!

GitHub - topjohnwu/Magisk: The Magic Mask for Android

The Magic Mask for Android. Contribute to topjohnwu/Magisk development by creating an account on GitHub.

github.com

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John Wu

@topjohnwu

5 years

Everytime I release a new version of Magisk and see people report issues of their device that doesn't happen in previous versions, my heart sinks and I feel really frustrated. I sometimes envy developers who can just target a small or stable environment, such as iPhone / iOS.

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John Wu

@topjohnwu

5 years

Just added live download counts in Magisk's GitHub home page. These numbers will be updated every hour. As you can see, these numbers are HUUGE 😉

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John Wu

@topjohnwu

4 years

The world's most complete documentation regarding recent Android boot methods. Comparison and explanation between legacy ramdisk, legacy SAR, 2SI legacy SAR, 2SI ramdisk SAR... Googlers might want to check this too to understand the mess they created 😜

Android Booting Shenanigans

The Magic Mask for Android

topjohnwu.github.io

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John Wu

@topjohnwu

3 years

I've decided to open source the original non-open source fully obfuscated stub APK implementation that was used in production. The existing code was a proof of concept, right now it's the real deal.

Open source fully obfuscated stub · topjohnwu/Magisk@9c09ad3

github.com

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John Wu

@topjohnwu

2 years

Magisk v25.0 published to public beta 🎉🎉

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John Wu

@topjohnwu

3 years

The next release is getting crazier day by day...

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John Wu

@topjohnwu

3 years

This drives me absolutely nuts. No matter how many times I set my temperature to show in Celsius, somewhere in Google's services/Pixel's UI, it will show me Fahrenheit. Google, just because I live in the US, doesn't mean I accept the incorrect scale 😤. iOS does not do this to me

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John Wu

@topjohnwu

6 years

After digging through init source code and linker source code, my hack turns out to work just fine!! I'm sooooo excited!!!! Magisk for Pixel 3 Android Q is coming!!

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John Wu

@topjohnwu

3 years

I am well aware of the December patch breaking root on Pixel 6. Thankfully, the community came to the rescue and fixed the issue before I even looked into it! Open source FTW, Magisk is on track to live on without my 100% attention 😃

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John Wu

@topjohnwu

5 years

End of an Era

Disable MagiskHide by default · topjohnwu/Magisk@612b51d

Since SafetyNet CTS is impossible to achieve, leaving MagiskHide on by default no longer serves a purpose. For more details regarding the latest SafetyNet changes, please check: https://twitter.co...

github.com

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John Wu

@topjohnwu

4 years

Fanboys: wait, it’s Oppo all this time? OnePlus: always has been … never settle your ass 🔫 ⓘ 𝗧𝗵𝗶𝘀 𝗰𝗹𝗮𝗶𝗺 𝗶𝘀 𝗮𝗻 𝗶𝗻𝗱𝗶𝘀𝗽𝘂𝘁𝗮𝗯𝗹𝗲 𝗳𝗮𝗰𝘁

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John Wu

@topjohnwu

6 years

Magisk v18.0 seems to be the most peaceful and successful release ever. No major new issues and no wide spread bootloops. This is pretty impressive considering how huge the update actually is. Finally a weight has been lifted off my shoulders so I can focus on my finals 😂

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