Intro to Hardware Reversing: Finding a UART and getting a shell

This video is part of the Figurable project, which is geared toward people who are curious about IoT security and looking for that first bite of the apple.
If you're interested in hardware but haven't had a chance to play with any yet, this one's for you. In this "hello world"-level reversing project we're checking out a UART (serial port) and using it to access a shell on a very soft target. If you decide to try it on your own you'll find an equipment list, walkthrough references, and some troubleshooting ideas at the link below.
1585security.com/Hardware-Reve...

Пікірлер: 860

  • @Brandon-youtube
    @Brandon-youtube4 жыл бұрын

    The rare 'triple crown' of educators: Intelligent, good at explaining, and interesting to listen to. Props.

  • @alexa.davronov1537

    @alexa.davronov1537

    4 жыл бұрын

    He is also good at composing videos, isn't he?

  • @xl000

    @xl000

    4 жыл бұрын

    he's a good thing explainer.

  • @yellowajah

    @yellowajah

    4 жыл бұрын

    Subscribed. Lowering the stakes of failure by doing the opposite of saying something like "this is actually really easy, just $whats-being-covered" is an amazing thing to do

  • @w3w3w3

    @w3w3w3

    3 жыл бұрын

    hahaha yes 100%. It is hard to find people who are also good at teaching lol... this man is perfect.

  • @srinivasshinde6685

    @srinivasshinde6685

    Жыл бұрын

    I wish you were in my collage as a professor, man I would love to see you teach

  • @Grummpyro
    @Grummpyro4 жыл бұрын

    Dam I was excited to watch all the videos but I just realized that there is only 2 of em. Please make more videos I love them :)

  • @ghassanALKIRSHI

    @ghassanALKIRSHI

    4 жыл бұрын

    lol same here

  • @videoteca_juanjo

    @videoteca_juanjo

    4 жыл бұрын

    +1. These 2 videos have been a gold mine!

  • @mianhannan3809

    @mianhannan3809

    4 жыл бұрын

    same with me

  • @SPotter1973

    @SPotter1973

    4 жыл бұрын

    This is a METOO that can really get behind 🤓

  • @jabatheshort660

    @jabatheshort660

    4 жыл бұрын

    Exactly y thoughts. Please keep making vids

  • @miigon9117
    @miigon91174 жыл бұрын

    The thing that’s great about his video is that he not only tells you how to do it but also tells you the thinking process, while still keeping the video short and straightforward. He’s a great educator. I hope my teachers are all like him.

  • @phinok.m.628
    @phinok.m.6284 жыл бұрын

    6:11 Serial ports usually default to the high level when not transmitting and pull the line low to send the start bit (0) after which it jumps up and down to representing the zeros and ones being sent. While transmitting data, on average the line is usually somewhere around half VCC since on average you'll probably be sending about as many zeros as ones. Therefore you should expect to get 3.3 V on idle around 1-2 V while transmitting. That's with a multimeter (or other slow voltmeter), on an oscilloscope you would see the actual data being sent of course.

  • @S54B32_
    @S54B32_3 ай бұрын

    Bro, i was watching it WITHOUT SKIPPING, it was so cool and interesting! Sadly, there are only 2 videos on your channel. Make another one, it's really cool. Pure jewel.

  • @annix493
    @annix493 Жыл бұрын

    Tony! There are only two videos here?! I refuse to believe that you have this level of skill as a teacher / producer of tutorial videos out of nowhere. Please, PLEASE, if you have some back catalogue of videos that you’ve produced for work/school? I am 100% certain that I speak for every sentient life form across the known and unknown universe when I say : TONY. GIVE. US. MORE! I don’t care if it’s a video showing us how to bend a paper clip to look like a bunny. Teach me to clean a soldering iron by licking it. Show me how you organise zip-ties. ANYTHING, TONY. PLEASE!

  • @okiseeyou
    @okiseeyou4 жыл бұрын

    Im an electrical engineer by education and a software developer by trade, and this video is a beautiful rainbow connecting them both. Can't wait to mess around with some of this stuff

  • @MrFurriephillips

    @MrFurriephillips

    4 жыл бұрын

    Stuyvesant Fish are you sure you aren’t a creative writer? That phraseology was magical AF!

  • @kwhp1507

    @kwhp1507

    4 жыл бұрын

    Andrew C that sounds illegal

  • @crogersdev

    @crogersdev

    4 жыл бұрын

    Same here. Not much good at either of them. xD

  • @kwhp1507

    @kwhp1507

    4 жыл бұрын

    Andrew C just the way I read it I guess made me think of using your devices as eavesdropping or spy devices.

  • @TsarAlexTheFirst

    @TsarAlexTheFirst

    4 жыл бұрын

    Kevin Hanes haha definitely

  • @Linux.Learner
    @Linux.Learner4 жыл бұрын

    SPEECHLESS. PURE JEWEL. It takes great curiosity, comprehension and an intelligence to cram up the most difficult of the contents into as much less of a time and length as possible - with added wittyness. THIS MAN IS A TRUE GENIUS. A man holding the capability to spark the same into others. BRAVO! BRAVO! BRAVO!

  • @fiyakhue3587
    @fiyakhue3587 Жыл бұрын

    This is one of the most informative videos I have ever seen in my life. So much info packed into such a brief video. This guy should be teaching IT professors how to explain things.

  • @LyddonGareth
    @LyddonGareth4 жыл бұрын

    I rarely comment on videos, disappointed there aren't more. Easy to follow, perfect pace. ty

  • @phillip4833
    @phillip48334 жыл бұрын

    Hey, just checked your channel and im disappointed its not a gold mine of more content just like this. Im a senior electrical engineer going for a masters in elec/computer engineering and this type of stuff I wanna learn to do its incredibly interesting and hope to see more in the future. Great stuff honestly

  • @thenoble1
    @thenoble14 жыл бұрын

    Please don’t make us wait another two years lol

  • @goku445

    @goku445

    4 жыл бұрын

    I was about to say.

  • @goku445

    @goku445

    2 жыл бұрын

    @Filip Carlsson lmao

  • @light0342

    @light0342

    Жыл бұрын

    Well...

  • @kwastek

    @kwastek

    4 ай бұрын

    Well...

  • @benjelum
    @benjelum Жыл бұрын

    hands down some of the most incredibly approachable, beginner friendly, and informative content I've ever seen on the subject! wish you were still making videos :)

  • @SimpleLangSolution
    @SimpleLangSolution Жыл бұрын

    Doing my yearly attendance to this wonderfully made video. Please come back.

  • @sirtinley-knot2944
    @sirtinley-knot2944 Жыл бұрын

    I learned more from 2 videos and 20 something minutes than I have done in years from other sources 👍🏻

  • @kworgz
    @kworgz Жыл бұрын

    You sir are a good teacher of the uninitiated. Being able to bridge the gap from uninitiated students to intermediate learners in fields like IT/Network Inf is crucial! Make more videos please!

  • @RobsBodgecast
    @RobsBodgecast4 жыл бұрын

    You made learning this fun and entertaining. A professor once told me that a true sign of intelligence is the ability for a human to make a complicated task sound easy and enjoyable to enable another human to learn the topic covered.

  • @ohnoitisnt
    @ohnoitisnt4 жыл бұрын

    Thank you for listening to your new wave of viewers. You have a knack for videomaking and this is a hella cool topic thats massively underrepresented here on youtube. Keep this thing going!

  • @charmio
    @charmio4 жыл бұрын

    You should definitely make more of these. No doubt they're time consuming but you seem to have a knack for it and a voice people want to listen to. There's also not a too many people making content specialised in electronics on KZread at the moment. Given the response you've had so far I'd say It's quite a good opportunity you've got here not to mention a nice way to earn a bit of cash on the side.

  • @paul4866
    @paul4866 Жыл бұрын

    Please continue to make more videos if possible for you. You stand out as one of the clearest communicators I've ever heard from in Cybersec

  • @bedroomdeejay7873
    @bedroomdeejay7873 Жыл бұрын

    This is incredible. Treasure trove for someone only with minimal time to understand something complex as hardware.

  • @jonweinraub
    @jonweinraubАй бұрын

    Such cool stuff. I’ve been so scared of hardware as I’ve been a software guy for so long. It’s neat to get my feet wet watching these and soon to play. Thx.

  • @magnum_dingus
    @magnum_dingus4 жыл бұрын

    I just found your channel and I have to say, I sincerely hope you're able to put out more content more regularly in the future. Your videos are informative without being long-winded, and they're incredibly well presented. Also, the recap at the end is a nice touch. Thank you for taking the time to make these videos.

  • @r0flcopterz
    @r0flcopterz4 жыл бұрын

    This is a niche I cannot wait to follow along and learn with. I’ve been a software engineer for years, but never got too far into reversing hardware after my first FTE SWE job. Nice work; thanks!

  • @giannismentz3570

    @giannismentz3570

    Жыл бұрын

    yeah, me too, I've been into software engineering, but had not bothered with electronics. I had no idea how interesting they can be, and like you said, when you combine the 2... 🙂

  • @LaenPvP
    @LaenPvP4 жыл бұрын

    Please continue to make more videos! I found your other video months ago and was sad when I saw it was your only one, then this gem magically pops up! Thank you so much!

  • @DukeEast
    @DukeEast4 жыл бұрын

    With just Two videos two years apart... I can only give Big respect for the Gold Mines you shared.. More Please, and just keep it up..

  • @ericborchardt5238
    @ericborchardt52384 жыл бұрын

    This was an awesome tutorial. I was disappointed to see this was only your second video in 2 years, I really hope you make more like this soon. I'm subscribing!

  • @jsvownzu
    @jsvownzu4 жыл бұрын

    THIS GUY IS AMAZING! I was getting ready to binge watch every video this guy has but :(. Please make more videos. You have a gift.

  • @MclarenF1rocket
    @MclarenF1rocket4 жыл бұрын

    Dude - this is amazing! As an EE with a hardware background, it was really exciting to see how accessible doing stuff like this is.

  • @zyugyzarc
    @zyugyzarc Жыл бұрын

    love how he encourages you to get started even if you dont know stuff, and makes you feel comfortable doing stuff like this

  • @liqwiz
    @liqwiz Жыл бұрын

    "we're not disarming a nuke", combined with some hours watched on louis rossman and the current ongoings in eastern Europe, and the algorithm does its work and here we are. great video, thanks :)

  • @annix493
    @annix493 Жыл бұрын

    I’ve been an all around tinkerer/computer enthusiast my entire life, to the point that I now work as a Sysadmin and cloud engineer, plus do PC building and small electronics on the side. I watch a lot of tech KZread and am always picking up new projects and skills, but this is….a whole new thing. I mean this sincerely - this video has opened an entire new world of possibility to me. What an absolutely expertly crafted tutorial, you provide just enough context and information without getting super bogged down in the details, while still answering most of the questions I come up with before I’ve even finished thinking them. Seriously impressed with this video, and your skill as a communicator. I hope it didn’t have a family, because good god have I smashed that subscribe button into oblivion. I look forward to more stuff like this from you, and digging into your back catalog. Gotdamb, this is SO friggin awesome, thank you for what you do. I’m still in a bit of shock at how many possibilities this has opened up in my mind. I’m going to have to dig in to your firmware dump video as well - something I definitely thought was way outside of my skillset, but now….maybe not! Cheers! 🍻

  • @AJMansfield1
    @AJMansfield1 Жыл бұрын

    Sometimes though, there will also be a pair of 0-ohm resistors in series with the rx and tx lines that won't be populated on the production version. (They're included on very-low-volume equipment because sometimes rx and tx get mixed up at the design stage, so this is added to make it easy to switch them back with bodge wires instead of re-spinning the whole board.) If you're able to find that, you can just blob some solder over those pads to close them (or solder robe wires directly to the appropriate pads), but figuring out which unpopulated pads are the rx/tx crossover isn't always easy.

  • @frankdurso9671
    @frankdurso96714 жыл бұрын

    This was really good. I'd really love see more content like this!

  • @ethanarquette3924
    @ethanarquette39244 жыл бұрын

    PLEASE PLEASE PLEASE GIVE US MORE VIDEOS! YOU ARE SUCH A NATURAL AT TEACHING! THANK YOU SO MUCH! I LEARNED MORE IN 5 MINUTES THAN I I HAVE IN THE LAST 3 MONTHS!

  • @MikeCampo
    @MikeCampo4 жыл бұрын

    You're a really good teacher! You clearly love this stuff and that makes learning about it even more enjoyable on my end. Please make more hardware vids!

  • @vasil4oBG
    @vasil4oBG4 жыл бұрын

    Hi Tony, we know it is hard to make the videos and this take time, but everyone here will admit. The tech level you work on and the simple way you explain things is a rare gift ! Please !!! don't waste it... show us how to un-brick a router.... what tools are good for what job...

  • @CurrentlyObsessively
    @CurrentlyObsessively4 жыл бұрын

    This is by far the most interesting video I have seen working with hardware/firmware. I have always wanted to see firmware but didn't know how until now.

  • @grimfpv292
    @grimfpv2924 жыл бұрын

    This was a really nice introduction to exploring devices!

  • @TenjinAerospace
    @TenjinAerospace Жыл бұрын

    Wow Tony, I've watched thousands of video tutorials on various subjects, but you have a rare talent of relaying your teaching clearly and understandably , please, make more videos on this subject, I've learned more in your two videos then in 50 others with uhm/umms and no being straight up. Keep up the really great work!

  • @stevenszmek7007
    @stevenszmek70074 жыл бұрын

    I do agree with "Vik" that you should continue with this kind of videos. Both are well done and highly informative. I also really like the approach on using "stuff you got around" like the piece of a can. As a former teacher i often experienced that people a far to much afraid of breaking things when you only need to be careful and thoughtful. Well done - keep it up !!!

  • @mphomathabathe8558
    @mphomathabathe85584 жыл бұрын

    your commentary whilst cooking must be one of the best-unseen sites, hands down!

  • @gmelodie
    @gmelodie Жыл бұрын

    This is now one of my favorite security videos. Amazing really!

  • @adriftbubbles6817
    @adriftbubbles68172 жыл бұрын

    thank you! this was super fun to watch and a real "goldmine" of knowledge. i've wasted hours searching online about the basics of HW reversing ( i want to tweak some old gadgets at home) but nothing useful popped up until youtube finallly suggested your clips. finally i understand the basic knowledge i need to dive into, before trying to start my project

  • @geektoolkit
    @geektoolkit4 жыл бұрын

    This is really well done! Thankyou for a well thought out explanation with great choices for visuals. The FCC technique to look 'inside' of objects before owning them is brilliant. Thanks!

  • @bencesarosi7718
    @bencesarosi77184 жыл бұрын

    It's a mystery you haven't uploaded anything for two years. Another brilliant presentation. Keep 'em coming!

  • @aflynch
    @aflynch4 жыл бұрын

    Wow this really awesome! There are so many kinds of hardware I have wanted to get a look at, this kind just opens the door up enough that I feel I could give it a shot. Thanks for the video man!

  • @middleway1885
    @middleway1885 Жыл бұрын

    Sad only two videos... you are awesome for sharing these nuggets of gold... Cheers!

  • @novafawks
    @novafawks4 жыл бұрын

    Hey, you should do more stuff with this! You encouraged me to go out and do this to my own (old) router and surprisingly I got busybox access now I'm pretty confused as to what to do next! I think another tutorial for the next part would really help people. And thank you again so much for creating an interest I did not know I have had, I've always wanted to get in to hardware hacking and you were the first person that made me make the jump!

  • @Pokemon4life-zs3dl
    @Pokemon4life-zs3dl11 ай бұрын

    I ask this for my future kids: please make more of these videos.

  • @gschaaf713
    @gschaaf7134 жыл бұрын

    really enjoy your simplified yet intelligent explanations of things. this is a very rare skill to have, perhaps even rarer than your hardware hacking skills.

  • @GazJClayton
    @GazJClayton4 жыл бұрын

    Loved this, surprised you only had 2 videos, it was so well done. Looking forward to more if you get the time to make them.

  • @TheHamster4430
    @TheHamster44304 жыл бұрын

    Oh, I can't believe it! A new video! I'm so happy! The video is very straightforward. Thanks a lot

  • @malloott
    @malloott4 жыл бұрын

    You have a gift in education, keep em coming man!!

  • @JasonBassettThurrock
    @JasonBassettThurrock4 жыл бұрын

    Simple and easy to follow video, inspires confidence in tinkering with such devices. Keep 'em coming!

  • @johnibambohni
    @johnibambohni2 жыл бұрын

    I love this video! It's such an awesome, beginner friendly Introductory video - with loads of helpful background information! Thank you a lot!! 🙂

  • @GoneDee
    @GoneDee Жыл бұрын

    I like your attitude throughout the the whole video, thanks for the content!

  • @0xbitbybit
    @0xbitbybit4 жыл бұрын

    Awesome, more videos like this please! Clear, and easy to follow for us beginners!

  • @rfoliveira1975
    @rfoliveira19754 жыл бұрын

    Outstanding video! Congrats on a beautiful hands-on explanation of UART!

  • @firstmkb
    @firstmkb4 жыл бұрын

    Tony, thanks for posting this - I enjoyed it very much. I'm not an engineer, but I've fiddled around with hardware since the 70's. I don't think there was any individual piece of information you shared that I didn't know, but you put it together so well it was inspiring. Please keep making these, and let me know if you want some free hardware to hack on - nothing amazing, but you won't beat the price of free "Basement Surplus"!

  • @i3130002
    @i31300024 жыл бұрын

    I should thank you for the FCC thing you thought us. Thanks

  • @trevorgray3681

    @trevorgray3681

    4 жыл бұрын

    yea i've been having fun looking at all the fcc documents for everything in the house

  • @DavidHanniganJr

    @DavidHanniganJr

    4 жыл бұрын

    They thought you? Please explain. What means this expression?

  • @goahnary

    @goahnary

    4 жыл бұрын

    @@DavidHanniganJr I think he meant to put "taught".

  • @friendlyjapanesebusinesswoman

    @friendlyjapanesebusinesswoman

    4 жыл бұрын

    taught*

  • @i3130002

    @i3130002

    4 жыл бұрын

    @@DavidHanniganJr taught

  • @arnauvc
    @arnauvc4 жыл бұрын

    Please! Keep making videos like this, super useful and comprehensive. Really nice work

  • @yakumo885
    @yakumo8854 жыл бұрын

    Your videos are so in depth, yet to the point.

  • @odethebear
    @odethebear Жыл бұрын

    I'd like to swear - the good way. F that was cool! Maybe I'm easily impressed but that was very impressive.What is not maybe but a fact is that this chap explains everything casually well, easy to follow.

  • @WoWAuctionsnet
    @WoWAuctionsnet4 жыл бұрын

    Good job! I really like seeing videos like these, especially communicating with hardware. Please make more videos!

  • @oatlord
    @oatlord4 жыл бұрын

    I'm sensing great things with your channel.

  • @iw5747
    @iw57477 ай бұрын

    Imagine dropping 2 banger videos, 2 years apart, and then disappearing for 4 years lmao

  • @ErikJohanssen-px7gg
    @ErikJohanssen-px7gg Жыл бұрын

    Glad I found this. It shows that I am not the only one who keeps a bag of cut up beer cans. It can really be a versatile tool, honest!

  • @mrjlwjlw
    @mrjlwjlw4 жыл бұрын

    Yes, more PLEASE, quality and informative. I need more of this in my life! Thank you.

  • @jungleb
    @jungleb Жыл бұрын

    this channel is gold. what a legend teacher. my new fav content creator

  • @DRAGUNOV1902
    @DRAGUNOV19024 жыл бұрын

    I love this

  • @Flyrip
    @Flyrip4 жыл бұрын

    Really looking forward to more videos from you. You´re really great at this. They´re clear and direct. Top notch!

  • @superfly9291
    @superfly92914 жыл бұрын

    I just found your videos and I hope there's more to come! I'm really interested in learning how these things tick and what I can do to them! Thanks for being an introductory step!

  • @gabrielmascarenhas1502
    @gabrielmascarenhas15024 жыл бұрын

    Oh my God I'm a computer engineer student from Brazil and was just looking for this kind of content to supplement my course that does not contain any reverse engineering subjects. Thank you so much.

  • @davedugan3987
    @davedugan3987 Жыл бұрын

    This just popped up in my feed, I wanted to let you know I enjoyed it. Hope you make more videos!

  • @redserpent
    @redserpent4 жыл бұрын

    Sweet video, I was excited to see all the activity the little guy puts out. Thanks. Great production.

  • @jgrec8632
    @jgrec86324 жыл бұрын

    Awesome video! Actually seeing the process in real life/actually being applied, is great! I look forward to your videos!

  • @michaellong8812
    @michaellong88123 жыл бұрын

    This is an excellent video Tony; your tip about FCC filing info is an outstanding trove of information for hardware hackers. Thanks for the video!

  • @robb233
    @robb2334 жыл бұрын

    14.5k subs and 2 videos! There's a trend worth watching. Loved the video!

  • @420anonymous
    @420anonymous4 жыл бұрын

    Good intro to UART for someone who has yet to do it. Also extra props for that multimeter! I inherited one, and despite being the usual chinesium, it's held up really well! I've accidentally put it through some stuff over the fuse limits and it still works. (Except for the LEDs on the battery tester. But not a terrible loss.)

  • @mrkiky
    @mrkiky4 жыл бұрын

    It's insane how well the video is made. No wonder he has 13k subscribers with only 2 videos on such an obscure topic. Too bad this isn't a channel with hundreds of videos, it would probably have millions of subs.

  • @DrakeLuce
    @DrakeLuce4 жыл бұрын

    Fantastic video! Hope to see more!

  • @mauricionarvel8945
    @mauricionarvel89454 жыл бұрын

    I literally watched your other video like a week ago, then I went to see if u had more and was bummed out that you only had one and was from 2 years ago. Now this one got posted :D

  • @nhanbach1780
    @nhanbach17802 жыл бұрын

    Been looking for this type of video before. Now subscribed. It's so interesting

  • @chrishill699
    @chrishill6994 жыл бұрын

    KZread needs more people like you doing these kinds of videos. Awesome video best 1 iv watched in a while.

  • @SuperWabo
    @SuperWabo4 жыл бұрын

    Wow! Amazing video. You made that seem so easy. Perfectly explained and perfect pacing. Thank you! This was a real eye opener for me. I have to try this out.

  • @gazcbm
    @gazcbm4 жыл бұрын

    This guy got 22.3K susbscribers with just two videos!!! Thats when you know people are really finding this content useful. Looking forward to more.

  • @michhedeberg
    @michhedeberg4 жыл бұрын

    Amazing videos, you make all this stuff so accessible. Gotta make some more of these bad boys

  • @reydus6651
    @reydus66514 жыл бұрын

    You have got a very charismatic way of explaining things. Awesome video, thanks a lot :)

  • @crogersdev
    @crogersdev4 жыл бұрын

    The KZread suggestion algorithm works! So glad I saw this!

  • @maplifiers
    @maplifiers Жыл бұрын

    Really wish you had stuck with this. What an awesome video.

  • @ittotaq
    @ittotaq4 жыл бұрын

    Wow this video is beautifully made. Got me hooked and I wanted to watch more! Please make more!

  • @user-mp9rd4hg8b
    @user-mp9rd4hg8b4 жыл бұрын

    That was awesome. You are quite good at it… consider doing more!

  • @bernard2735
    @bernard27354 жыл бұрын

    Really clearly explained step by step instructions - thank you!

  • @adaelton
    @adaelton Жыл бұрын

    wow you are an artist in talking man, I am amazed. just found your channel

  • @arcachofo
    @arcachofo4 жыл бұрын

    Agree, we need hundreds of videos like this!!

  • @jjenko6366
    @jjenko63664 жыл бұрын

    Tony has the perfect teacher voice and teaching words to use.please do videos on others stuff like Rasperry Pies.

  • @shroob731
    @shroob7314 жыл бұрын

    I find your two videos deeply interesting. I've been using the 930 series of cameras for years. This opens up alot of things. PLEASE make more! SUBBED.

  • @Dablid77
    @Dablid774 жыл бұрын

    Your energy is the best

  • @night4wl959
    @night4wl9594 жыл бұрын

    I have a little bit of experience in reverse engineering because of my job, but my experience is very procedural without raw knowledge, so I consider myself as a complete beginner at this. Add to this the fact that I have AD disorder. Well yet, I followed everything you said without any difficulty, my focus stayed there for the whole 10 minutes, which means it was superlatively lucid, interesting, and everything was balanced to show the "whole picture" without any confusion. You are very good at this, I'd pay good money to be forged by someone like you.