Hooking Java Methods with Frida

[@theguyyouheardabout6658]

Best frida tutorial out there. Very professional keep it up!

[@sxpzz1922]

Amazing video, Frida saved me many times in Mobile Pentesting

[@divital]

this video screams high production quality, nice work ethic

[@Theawsomeminersshow]

Great vid! This (and your other videos as well) helped a lot in the new Flare-On CTF(I've never done Android RE before). I wonder what other cool stuff you could do with Frida on Android...

[@SkyHighBeyondReach]

Thank you Laurie! This is a great video! :)

[@jacejunk]

Best hooking I've ever witnessed.

[@sedoox7463]

superb video! thank you

[@krishnapavan7688]

awesome Laurie . thanks for sharing👌

[@Me.n_n]

Great 😊 I like your video,, I am waiting ARM series

[@DominikJaniec]

great animations!

[@Zer0nuke]

Great content, thank you

[@surajpingua4417]

Opening is very good I like it

[@life0verflowz]

Good presentation, thank you

[@sandaruashen5108]

Good Video, Thank You

[@ralienpp]

The explanation was very clear and easy to follow, thank you! Can you recommend a similar tool which could tap into the execution logic of a Java program running on top of the JVM?

[@HandsomeGenius]

Love the Lain reference lol

[@0xeb-]

Very useful

[@mrx2586]

How did the command adb push frida-................. /data/local/tmp work I thought the CP was the command for pushing files from host to a container?

[@break8090]

Thanks ❤

[@berndeckenfels]

Did you use Frida for Linux or Windows to intercept Java methods on OpenJDK instead of Android as well? Is that feasible or better stay with btrace?

[@brunoaduarte]

👏👏👏👏👏👏

[@2024paradigmshift]

Hi Lain are you gonna make Frida cereal experiments?

[@shehzadnazir3605]

Me as an android developer thinking This can be used both ways.

[@ionamaharany]

how to hook method with context?

[@ahmedalshikh1678]

Great

[@vivekchoudhary8745]

how to compile the app with the new hooked function?

[@lauriewired]

Since the hooking occurs at runtime, you shouldn't need to recompile the app. Frida hooks the method while the app is running to allow you to change the behavior

[@vivekchoudhary8745]

yes, but there are some software that pack the moded code in to the APK. I wonder if you can make a video on that. Because there was a case when I wanted to give the POC to the app dev team that their app was vuln but just couldn't find a way to re-pack the modded app.

[@lauriewired]

Ah, understand your problem. APKLab has a nice feature for resigning / compiling APKs in VSCode

[@vivekchoudhary8745]

@@lauriewired looks nice, haven't seen it in detail yet but hopefully it has some functionality to load those new custom written Js functions to the actual code. thanks

[@lauriewired]

You'd have to edit smali code for functionality changes. Frida only works for runtime changes

[@LudovicReenaers]

… and you are using Vim, you are perfection ! I love you AF 😮

[@blimolhm2790]

this is so much fuun

[@krishnapavan7688]

Laurie, have a doubt for reason why arrivesample() is not fetching data , as I have checked it is being triggered from oncreate() of Application subclass itself. any reason why it is not triggered even though it has good link from very good entry point. answer would be appreciable. waiting for your reply ASAP.

[@2024paradigmshift]

Dev work vs bug fixes and pentesting

[@ok4bed]

deluxe!

[@broomandmopmop]

@Laurie what OS is that and what theme that is insane and it is a must have lol can u impart some wisdom on where I can get my hands on that setup for os look

[@ameera999]

Once i learn this, i will become rich 😈

[@2024paradigmshift]

If u were in a Chromebook its chroot

[@gerakore8948]

frida is my dogs name

[@davidkamaunu8734]

Lol its my aunt's name 😅

[@1minutescience800]

I can not get over how pretty you are.

[@2024paradigmshift]

I remember when i didn't even understand frontend from backend .....

[@2024paradigmshift]

I bet everyone keeps asking why you dont use macbooks

[@2024paradigmshift]

🤡🤣

[@abbasa68a39]

hello when i run frida i have this error : exception: error: java.lang.unsatisfiedlinkerror

[@keepyoursins]

How do you edit these!!??

[@dovi9746]

The annoying thing about vi(m) is that if you see someone use it inefficiently you have this strong urge to help them improve their skills. So: 'cw' to change a word. sorry :)

[@dansamarco1610]

I use nvim and the sheer number of modal commands while useful, can certainly also be overwhelming. It's almost like Mario 64 - it's fairly easy to use/play at a basic level but has a huge range for expression above average user knowledge/skill.

[@shxdow9]

​@@dansamarco1610 you might enjoy Helix