MALWARE ANALYSIS - VBScript Decoding & Deobfuscating

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John Hammond

John Hammond

Күн бұрын

Пікірлер: 1 200
@_JohnHammond
@_JohnHammond 4 күн бұрын
well thanks for scrolling to the comments so anyway join my newsletter at jh.live/newsletter and check out jh.live/training to learn more cybersecurity stuff
@trebelojaques458
@trebelojaques458 3 жыл бұрын
Realising that entire ascii value-ish blob of nonsense was the actual malware, which was executed as string joins, has been a truly astonishing upload. I've never expected this'd be my morning
@bensons999
@bensons999 2 жыл бұрын
That's very common with malware, most of everything else in this one was just to try not to be flagged by antivirus.
@alluseri
@alluseri 2 жыл бұрын
That's not astonishing at all.
@willgordon5737
@willgordon5737 10 ай бұрын
That's how they escape getting detected by anti virus software. Becz the code is executed by another code all in the memory.
@tomnorman6877
@tomnorman6877 3 жыл бұрын
I came to see what this was. Was going to watch for 5mins... stayed till the end and wanted more 😄
@hulksunil
@hulksunil 3 жыл бұрын
lol! same
@anthonyschwartz6114
@anthonyschwartz6114 3 жыл бұрын
Same, I even drug my wife in about 15 mins in and had to restart. Lol
@UnDeFineDvProDucTion
@UnDeFineDvProDucTion 3 жыл бұрын
Same, i clicked midway and watched a few seconds, then ran it to the beginning and watched it all thoroughly! Good content, John!
@death5180
@death5180 3 жыл бұрын
Lol! same. I thought it was just a boring schinzel about a code.
@joker_g7337
@joker_g7337 3 жыл бұрын
Sorry to hear that. The first 10 minutes of the video is a painful waste of time. 2:44 "I am running on Windows right now, so I don't think I can run a .vbs..." But right under: "Programs that can open VBE files". It runs on Windows. I was so sorry for Mr. Hammond.
@abcq1
@abcq1 3 жыл бұрын
This video is just an artistic description of how much John hates tangent functions
@dionyzus2909
@dionyzus2909 3 жыл бұрын
I'm having to relearn trigonometry related stuff, because I'm studying computer graphics. Man, i forgot how I hated this part of geometry at school. Gotta stay on top of it though
@MrJeb123
@MrJeb123 3 жыл бұрын
I guess you could say this code kept going off on tangents...
@z_prospective160
@z_prospective160 3 жыл бұрын
interesting way to throw off virus detection... var random_int = 344; var tangent_of_random_int = Tan(random_int); var cotangent_of_random_int = 1 / Tan(random_int); over and over...
@z_prospective160
@z_prospective160 3 жыл бұрын
All of that was nonsense though... the real script was just stored as a string of ascII characters separated by a "@@@@@" delimiter.. and then that string was executed.. Once again a vulnerability exists where a script allows execution of string data as code... Mainly an issue for interpreted languages.. But I guess compiled languages could have this too but the compiler would also need to be included with the runtime, right?
@z_prospective160
@z_prospective160 3 жыл бұрын
@@tibettenballs4962 What is wrong with you?
@Dusk-MTG
@Dusk-MTG 3 жыл бұрын
When he sad "Now we're getting to the real malware", that's when I started not understanding anything anymore
@AkariInsko
@AkariInsko 3 жыл бұрын
when he sad 😔
@NeexT0P
@NeexT0P 3 жыл бұрын
@@AkariInsko LOL
@someshwartripathi8446
@someshwartripathi8446 3 жыл бұрын
😂😂
@The_One_0_0
@The_One_0_0 3 жыл бұрын
Lol this kid still won't fix it XD
@ryflyn
@ryflyn 3 жыл бұрын
Yeah I was having fun watching him decode it, until he was actually reading the malware, then I was like oof I have no idea what's going on haha
@davidringo4672
@davidringo4672 3 жыл бұрын
Probably the tangent stuff was intended to send a malicious person on a tangent. This was fascinating to watch.
@PalCan
@PalCan 3 жыл бұрын
Haha my thoughts exactly. Malicious programmer: and let's send them on various tangents , then declare a bunch of functionas, redefine them and never call them.
@NoNameAtAll2
@NoNameAtAll2 3 жыл бұрын
i was expecting the eval function to reference those variables for calculation
@donjon61
@donjon61 3 жыл бұрын
"I'll secure my malware by obscurity". Nice
@jefflittle8913
@jefflittle8913 3 жыл бұрын
New variation on "security by obscurity" - sending the reader off on tangents...
@windrun87
@windrun87 3 жыл бұрын
So in VB, you can have arrays that can indexed in anyway you choose, and this can be chosen per array. If you wanted, you could have an array that's valid indices were 5-10. The purpose of LBound and UBound is to determine what that range is for a given array. LBound(array) returns the lowest index while UBound(array) returns the highest index. This allows for a generic loop structure of For i = LBound(array) to UBound(array) stuff using array(i) Next
@actualFix
@actualFix 3 жыл бұрын
Thanks, I hate it
@KebunH
@KebunH 3 жыл бұрын
@@actualFix at least they don’t start at 1.. not necessarily that is....
@0xwhoami
@0xwhoami 3 жыл бұрын
So basically VB Dev were like, hey let's creat this problem call it a feature and supply the solution by creating two functions
@sanguchito7381
@sanguchito7381 3 жыл бұрын
@@0xwhoami No, they where like "hey, lets give the programmer the flexibility of using whatever index they like, instead of creating an unnecessary problem of mapping the lower boundry to 0".
@0xwhoami
@0xwhoami 3 жыл бұрын
@@sanguchito7381 how is that a problem in any other lang like rust, python, c or java....etc
@slikshot6
@slikshot6 3 жыл бұрын
Thank god im not the only one what looks up these functions, reads the documentation, and the first words out of my mouth are "but wtf does that even mean"
@csgultekin
@csgultekin 3 жыл бұрын
Those random, doing nothing functions such as the excessive amount of sleeps and tangent functions are to evade from anti virus sw, that checks for hashes and heuristics. Those are added progressively with each version of the virus.
@MatthewIrizarry-4
@MatthewIrizarry-4 Жыл бұрын
That is really cool to learn. My thoughts were also to induce human error. Ex he’s deleting tangent function code and then accidentally deletes essential code but doesn’t realize it after deleting them so many times
@jonbrandre3006
@jonbrandre3006 3 жыл бұрын
That switch to dark mode killed me 😂 Google was like "HACKER MODE ENABLED"
@nikolas8741
@nikolas8741 3 жыл бұрын
That's big brother algorithm
@SpoiledBread24
@SpoiledBread24 3 жыл бұрын
“To the dark side”
@LoLei3239
@LoLei3239 3 жыл бұрын
I was actually hyped when I saw that. I've been waiting for that for years.
@stellabransworth8399
@stellabransworth8399 3 жыл бұрын
Bennyhack_ on IG just made my day, All my files back like magic.. Thanks
@johncaccioppo1142
@johncaccioppo1142 3 жыл бұрын
"They're trying to save my eyeballs." No, friend. They are trying to save THEIR eyeballs.
@firebreathN7
@firebreathN7 3 жыл бұрын
Just when I was saying "he is wasting his time, this code is just a troll joke" you made the @@@@@ magic and BOOM! you found the cake! ^_^ Thanks for sharing your skills John! Really appreciated
@nothingnothing1799
@nothingnothing1799 3 жыл бұрын
As soon as i saw @@@@@ with numbers In between i knew that was were the virus was
@PiotrK2022
@PiotrK2022 3 жыл бұрын
@@nothingnothing1799 Yeah, blob of nonsense almost made John fool...
@matthhiasbrownanonionchopp3471
@matthhiasbrownanonionchopp3471 3 жыл бұрын
I thought the guy was a fool who didn't know what he was doing and some how made a virus. But the blob_of_nonsense was decided and BAM I instantly gained +100 respect for who wrote the code. I don't know how common this trick is but it is smart anyway.
@internetdoggo4839
@internetdoggo4839 3 жыл бұрын
I really enjoy these kinds of videos; fast-paced unnedited breakdown of malware ur a legened
@Innosos
@Innosos 3 жыл бұрын
"Lol. Let's just copy paste some random function a couple hundred times. There. Obfuscated. I'm a genius." -some bad guy, probably
@davidfarah
@davidfarah 3 жыл бұрын
HAHAHAAHHA accurate
@LaughingShinoo
@LaughingShinoo 3 жыл бұрын
I mean, to be fair, John actually explains why they have so many of these tangent operations, which is to fool any external system trying to analyze the code or predict any specific behavior, they'll just think the code is doing random math stuff, while in practice the math stuff is completely useless, it's just used as a "mask"
@Innosos
@Innosos 3 жыл бұрын
@@LaughingShinoo I was referring to the constant declarations of the same functions with exactly the same variable names, content and operations below the actual code.
@hydropage2855
@hydropage2855 3 жыл бұрын
Not copy pasted, they clearly had some form of generator for this
@PiotrK2022
@PiotrK2022 3 жыл бұрын
Or he used alrread known by antyviruses script and did that to change its pattern and avoid detection.
@karremania
@karremania 3 жыл бұрын
If i remember correctly, those tangets were called 'sandpiles', random piles of odd maths with completly randomized variables, was used to hide the first steps to decode stuff.
@DefenderPlaysGuitar
@DefenderPlaysGuitar 3 жыл бұрын
Just here to say you should definitely do more of these
@guitarzan0001
@guitarzan0001 3 жыл бұрын
I've seen these obfuscated vbscipts before, even deconstructed them a bit (but not to it's conclusion like you did ). Never thought I would see parsing a vbscript on KZbin, this was fun!
@Octomany
@Octomany 3 жыл бұрын
It may sound a bit weird, but I love seeing you struggle with some things. Thanks for recording the whole thing. What matters the most to me is to understand your thought pattern and how you resolve the problems you encounter.
@ronjeremy6663
@ronjeremy6663 2 жыл бұрын
Same. I have only done a minimal amount of programming, mostly JS+CSS but I loved watching John dismantle and assess the code. The way he explained his methodology helped me better understand what I was seeing, and as soon as I saw the clear human coding, I knew exactly what I was looking at! Thanks for posting the whole thing!
@MemeticsX
@MemeticsX 2 жыл бұрын
In education terms, we call what he's doing a "think-aloud protocol." It makes one's thinking audible, which is very handy.
@vipinx8881
@vipinx8881 3 жыл бұрын
why did I just watch all of this and enjoy all of it... I'm really realizing how little I know about computers now
@steezydeezy1889
@steezydeezy1889 3 жыл бұрын
As someone starting to work in the coding/IT field, it blows my mind that someone made something this thorough.
@xXYannuschXx
@xXYannuschXx 2 жыл бұрын
Theres even more insane stuff out there, look up the NSO Group iMessage GIF zero click vulnerability. These guys used the GIF preloader of iMessage to load a GIF that in turn loaded a PDF which in turn used a broken decompression algorithm that has a classic integer overflow, which in turn they used to program virtual logic gates into the RAM, which then was used to build NAND gates (which are the basic building blocks of modern processors) and then build a VIRTUAL SOC with it, that could search the RAM for keywords and relay the information back to their servers, without you noticing. EDIT: The GoogleProjectZero Blog has the most thorough analysis about it.
@thestraightpipe
@thestraightpipe 3 жыл бұрын
I just got into learning IT and im very interested in coding. As I search more about coding, youtube recommends me videos like this. So You really got my attention by that caption. You got me even more hyped up about this all and you just earned another follower!
@md123180
@md123180 3 жыл бұрын
This was a great work-through! I loved watching your process! As a soon-to-graduate CS student, this brought a lot of stuff into focus, especially on how to work through these kinds of problems!
@CodingGenesis
@CodingGenesis 3 жыл бұрын
"I swear I've done this before." - Famous last words
@CupidGaming522
@CupidGaming522 5 ай бұрын
every programmer ever when the computer is angry at them
@prabufarhan175
@prabufarhan175 3 жыл бұрын
If the hacking action in hollywood movies are "real" like this, those movies would take hours before finish
@Auriflamme
@Auriflamme 3 жыл бұрын
Imagine an episode of Mr Robot - 44 minutes of coding and 1 minute of action/plot.
@To-mos
@To-mos 3 жыл бұрын
@@Auriflamme I love writing tools to make more tools just to watch them all do the work.
@normady4758
@normady4758 3 жыл бұрын
Wolverine could do it. “NEED MORE TIME!!!!”
@kensyjolicoeur
@kensyjolicoeur 3 жыл бұрын
Oh shit
@lamesafekadu6568
@lamesafekadu6568 6 ай бұрын
Definitely 😅
@Inspire22Aspire
@Inspire22Aspire 3 жыл бұрын
this is so satisfying to watch I was like I'm going to go watch an episode of a serie and than change my mind like nah I'm just going to watch a short KZbin video and sleep but here I'm at the end of the video.
@floorpizza8074
@floorpizza8074 3 жыл бұрын
The way you un-obfuscated that code was inspiring.
@kevinlao3690
@kevinlao3690 3 жыл бұрын
Me: Uh wow that's a long video. Let's watch it for 10 minutes and save it later. 40 minutes later - *subscribes*
@Momonga-s7o
@Momonga-s7o 3 жыл бұрын
Him fighting the ragex is literally me, tears roll down my face everytime.
@0ShadowG0
@0ShadowG0 3 жыл бұрын
regex = "rage x", am I right? :D
@NostraDavid2
@NostraDavid2 3 жыл бұрын
Hearing him say "do I need that to be greedy?" and replacing * with + just hurts... Cant blame him for not comprehending regex. I followed a minor where I learned parsing (and with it regex) and it was *brutal*. Totally worth my time to learn though.
@Momonga-s7o
@Momonga-s7o 3 жыл бұрын
@@NostraDavid2 The worst offender is that different programs and languages uses regex differently so you must learn it all over again every time.
@DumbCrumb
@DumbCrumb 3 жыл бұрын
As soon as you stopped yourself to go back and explain the keyboard shortcut, I subscribed. Keep up the good work.
@jasonemmanuel1031
@jasonemmanuel1031 3 жыл бұрын
I love learning with you! It’s always interesting and I feel like I’m learning along side you rather than being taught.
@wesleymays1931
@wesleymays1931 3 жыл бұрын
That first tag said "HAAAAA" because it was mocking you. It realized that it actually managed to stop you from reading the file
@JasonBock
@JasonBock 3 жыл бұрын
This reminds me of a situation that happened at a client I was consulting at in the late 90s (it might have been ILoveYou, but I can't remember). An e-mail with an attached .vbs file was running rampant on user's machines. They finally stopped it, but they had no idea what it was doing. Since I had VB experience, I was asked to dive in and see if I could figure it out. The code was obfuscated in many ways similar to what Hammond runs into in this video, but I finally figured out what the code was doing....and it was pretty nasty.
@headblockhead
@headblockhead 3 жыл бұрын
What was it doing?
@JasonBock
@JasonBock 3 жыл бұрын
@@headblockheadIIRC, basically deleting images from every directory it could find on the user's machines, including mapped network folders....which included corporate product images....that weren't backed up either 😮.
@Nitidus
@Nitidus 3 жыл бұрын
@@JasonBock Did people in the 90s already think about backing up stuff?
@67hutch
@67hutch 3 жыл бұрын
@@JasonBock Wow. That’s horrible!
@England91
@England91 3 жыл бұрын
Oh I remember that virus
@Ookami8raven
@Ookami8raven 3 жыл бұрын
Will you be making more Malware Analysis videos?
@ismhdez
@ismhdez 3 жыл бұрын
It would be awesome! I like it
@benney25
@benney25 3 жыл бұрын
That would be fantastic! I'm trying to get into a security job, and knowing what malware looks like and how it works would be super super helpful, even if I don't use that knowledge in my interview or internship
@ff0x
@ff0x 3 жыл бұрын
This is my favourite john Hammond video so far ;) Dude you definitely need to do more of this stuff 👍
@Alexandritax
@Alexandritax 3 жыл бұрын
I agree, this teaches a lot about how mental people can get.
@Drakelett
@Drakelett 3 жыл бұрын
More please :)
@bastianwegge
@bastianwegge 3 жыл бұрын
It's just crazy how many people stay here because they relate to what you're doing :D. I love your content and I'm actually amused by watching something close to what I do every day.
@brandonhenderson4282
@brandonhenderson4282 2 жыл бұрын
Watching this video brought me back to my days of studying for the OSCP. I enjoyed this a lot more than I thought I would.
@remmoze
@remmoze 3 жыл бұрын
What lifeOverflow has taught me: if you see a long string, there must be some decoding going on. So ignore the junk code and go straight to the decoding loop. Then you can get the return value of that decoding loop (or just the value you end up with when the decoding is done) and go around with it. Removing all of those /Tan functions is time wasteful
@EliotLu
@EliotLu 2 жыл бұрын
Agreed, seems this is providing beginners a general approach to understanding and breaking down code. Indeed once you’ve done an exercise like this a few times, there’s no additional benefit and in fact is slower.
@giuseppezanichelli4100
@giuseppezanichelli4100 2 жыл бұрын
@@EliotLu ⁷
@stefancoetzer7230
@stefancoetzer7230 3 жыл бұрын
I saw this right before going to bed at 11PM, stayed up watching pretty much the whole video, thank you xD
@userAndix
@userAndix 3 жыл бұрын
Interesting how the code was hidden behind some random garbage. Even the tangent functions make some sense now
@userAndix
@userAndix 3 жыл бұрын
@TruCrime interesting !
@skyr3x
@skyr3x 3 жыл бұрын
the main reason to obfuscate is to make it unreadable and hard to approach. even renaming all your variables and functions to random strings and base64 encoding everything will make quite a lot of people trying to read your code go "nah, this mess isn't worth my time"
@frankmyers4736
@frankmyers4736 3 жыл бұрын
It got real juicy after second stage. I loved this video way more than I thought I would. Keep up the good work man!
@Tasarran
@Tasarran 3 жыл бұрын
Those tan functions and the weird functions at the end did just what they were supposed to; you spent twice as long messing around with those puzzles than it took to figure out the core code! :D
@Yarbo119
@Yarbo119 3 жыл бұрын
I have a cursory understanding of programming. Not enough to write a program myself, but enough to sort of follow along. I'm 20 minutes in, and this is great. Why is this so interesting?!
@mike36801
@mike36801 3 жыл бұрын
At 29:56 you can see it's using windows new line which is 2 characters and (CR & LF) (Linux is only ), so in your regular expression you should have used . Also, in vb you can declare arrays from any index to any index, so you can make an array like "Dim my_array(10 to 20) As Integer". LBound will return the lower bound = 10, and UBound returns upper bound = 20
@CapsizedPirate
@CapsizedPirate 3 жыл бұрын
Always use ? and you're never wrong. I was in physical pain watching him struggle lol
@fish4716
@fish4716 3 жыл бұрын
I found it very cool that you were figuring it out as you recorded the video and showed all the troubleshooting though processes.
@thierryvt
@thierryvt 3 жыл бұрын
I love how @25:00 he is the embodiment of "if you have a problem you are trying to solve with a regex you now have 2 problems"
@nano_dank
@nano_dank 3 жыл бұрын
I reverse engineered a malicious PowerShell script I found somewhere in almost the exact same way. There even was a 2000+ lines blob of nonsense (divided string whose parts were being added to a variable one after the other) that was literally a malicious executable encoded in Base64 format. Who knew that YT would recommend me an actually useful video today? Pretty neat stuff! As a beginner programmer I'm really proud of myself for the process and thankful that I came across your video. Have a nice day, John.
@randymartin9040
@randymartin9040 2 жыл бұрын
I'm only about 20 minutes in, but it's interesting to see this idea of a program obfuscating it's own code, then during it, possibly rebuilding it so that it can bypass virus detection. If that's what this thing is doing it's kind of brilliant if that's even possible. It seems like it has strings of characters that it's joining together, recursively. If, after all of that it used that newly made string for something devious, that's pretty interesting.
@andy02q
@andy02q 2 жыл бұрын
Yes, it's a clever idea, however that idea is (one year) older than the first computer virus (1948 vs 1949)
@rei2829
@rei2829 3 жыл бұрын
This video is bit old but if you by any chance read this comment i have to let you know, this was amazing, i watched the whole thing twice, i love your personality. At first I tought the script was nothing but nonsense but somehow you got a readable output. Like i said it was really interesting and i hope you keep doing this kind of videos. And lastly, thank you for the amazing content
@xHvl1
@xHvl1 3 жыл бұрын
You're like if Seth Rogen was a computer guy instead of an actor
@DMalenfant1
@DMalenfant1 3 жыл бұрын
So he scams his workers and spergs out on twitter on a regular basis saying hateful comments about whites?
@DemonDante1000
@DemonDante1000 3 жыл бұрын
I can see that
@DemonDante1000
@DemonDante1000 3 жыл бұрын
@@DMalenfant1 can you be a troll somewhere else?!
@DMalenfant1
@DMalenfant1 3 жыл бұрын
@@DemonDante1000 I am pointing out a fact. Don't be such a sensitive tnuc.
@richwojehowski1123
@richwojehowski1123 3 жыл бұрын
Well I'm glad I wasn't the only one to immediately think this!
@codygaudet8071
@codygaudet8071 3 жыл бұрын
I'm addicted to these videos. I learned more here than many other places. Keep it up bro!
@zanidd
@zanidd 3 жыл бұрын
The premiere is perfect for this format of video. Feels live, but I think you as the creator can concentrate on chat + the hacking at the same time 👍🏻👨‍💻
@zanidd
@zanidd 3 жыл бұрын
I may steal this for my let's hacks instead of editing them for 8 hours 🤣
@brxrmr
@brxrmr 3 жыл бұрын
Saw this as a random recommendation and midway through I already knew where it would go (eval + garbage code) but stayed for the whole thing. Thanks for making this.
@lunaballoona7802
@lunaballoona7802 3 жыл бұрын
I just love how he stares into the void for a bit before he starts talking
@IanJBarker
@IanJBarker 3 жыл бұрын
I did not expect to watch as much of this as I did! Great video!
@350606
@350606 3 жыл бұрын
Oh, Houdini! I remember having to deal with some variants of it before! It wasn't prevented by AVs back then. Luckily, they *did* block the extra downloads, so the infection wasn't too serious, but every USB drive ended with all files hidden and links to the VBE added, posing as the files. They did open your files after reinfecting your machine, so did not know anything was happening at all. The first couple times I had to deal with it I did manual cleanups of the systems and the drives, then more variants started coming in so I exploited the infection check and local update mechanism to make my own fake infection for our machines. The script thought it was running and that my version was newer than the ones it knew, so it did not replace it. EDIT: And most new "re-releases" of Houdini or Dunihi are pretty much the exact same script with a different hostname and a different packing added to mess with its signature.
@SeynArkwin
@SeynArkwin 3 жыл бұрын
Its refreshing watching a professional break down a malware code into understandable code ; Great content man
@mattmmilli8287
@mattmmilli8287 3 жыл бұрын
The last man using sublime text
@MistaT44
@MistaT44 3 жыл бұрын
Randomly popped in my recommendations and I enjoyed every second of it! great job :) subscribed
@mrpedrobraga
@mrpedrobraga 3 жыл бұрын
I almost died of pain in the RegEx part. Function .+[\s\S]*End Function Would do it
@zperk13
@zperk13 3 жыл бұрын
i kept yelling "use square brackets!" at the screen
@tylisirn
@tylisirn 3 жыл бұрын
I don't think anything would have done it. If you read the status line it says the regexp is running out of stack space trying to pattern match the enormous file.
@GazetaOnlineMG
@GazetaOnlineMG 3 жыл бұрын
yeah, but this regex will not select each function separately like that ^Function.+( .*?)+End Function$
@mrpedrobraga
@mrpedrobraga 3 жыл бұрын
@@dieregierung9388 ok now I can't even read it with my eyes anymore
@Akronymus_
@Akronymus_ 3 жыл бұрын
In regards to the stack one, possesive quantifiers could've fixed it: So, "^Function(?:.* )*+End Function$"
@angel38618
@angel38618 3 жыл бұрын
dude that was a really fun adventure, honestly when i saw the length of the video i thought that i will stop watching after 5 min or so but 41 minutes gone without noticing. gj on the video mate
@khalilbouzidi8432
@khalilbouzidi8432 3 жыл бұрын
Houdini, he's the creator of H-worm an Arabic developer specifically from Algeria
@gans512
@gans512 3 жыл бұрын
Or en.wikipedia.org/wiki/Harry_Houdini - an escape artist !
@khalilbouzidi8432
@khalilbouzidi8432 3 жыл бұрын
yes i know the real houdini but we are talking about the hacker behind this worm his nickname is houdini www.dev-point.com/vb/threads/411850/
@AhmetMurati
@AhmetMurati 3 жыл бұрын
The website is registered in Paris, France
@inferno7181
@inferno7181 3 жыл бұрын
@@AhmetMurati sounds about right for france lmao
@theclassyox
@theclassyox 3 жыл бұрын
I had nearly no hope for this to be an interesting video but I was bored senseless. Yet you delivered! Well done, I subscribed for more.
@flawlesscode6471
@flawlesscode6471 3 жыл бұрын
this was somehow even funnier than every meme channel combined
@aporti5019
@aporti5019 3 жыл бұрын
I like that you explain How to Think instead of just giving us the answer
@auto117666
@auto117666 3 жыл бұрын
I prefer to let the code decode itself and then just pulling out what you need from hooking API calls or memory, but manual deobfuscation can be fun every so often.
@dae2530
@dae2530 3 жыл бұрын
@@deidara_8598 same xd that's a lot faster
@ihatethesensors
@ihatethesensors 3 жыл бұрын
@@deidara_8598 As root ;-)
@auto117666
@auto117666 3 жыл бұрын
@@deidara_8598 That is definitely one way to get the payload. :)
@DHIRAL2908
@DHIRAL2908 3 жыл бұрын
Tools like any.run are really useful to analyse network/system calls without decoding the payload!
@NeoKailthas
@NeoKailthas 3 жыл бұрын
This works if you know what you're doing and have the dedicated infrastructure for it.
@guardian2300
@guardian2300 3 жыл бұрын
Loved the video man. Also a lot of the comments were really helpfull on getting a better understanding of what was going on with the first huge piece of code!!!
@eeejay2779
@eeejay2779 3 жыл бұрын
"Hashtag, at sign, tilde, karat, *haaaa*" why is this so funny
@empathy_is_only_human
@empathy_is_only_human 3 жыл бұрын
The author was basically calling either himself or his code evil. Look at the numbers under those symbols. 32~6 you don't go from 32 to 6 you step up by one so 33~6 or in other words three sixes 666 ha ha ha, or twice as evil given the two instances of 3. There is also a secondary joke here in that ~^ is a euphemism for dangling a carrot on a stick. Presumably for downloaded additional coding that makes the end user think everything's been fixed only to pop up again and again and again. It's actually kind of clever really.
@brocka7758
@brocka7758 2 жыл бұрын
This was fun to watch and I enjoyed seeing your process of "un-obfuscating" the code
@Balgoriusis
@Balgoriusis 3 жыл бұрын
Man I laughed so hard when you were trying to beautify the VB code. My company still maintains some VB6 code , its like a blast from the past. VB studio does not even allow wheel scrolling.
@Saboteur709
@Saboteur709 3 жыл бұрын
There is a little program you can download for free called "VBScroll.exe". If you run it before running vb6 you can use the mouse wheel to scroll the editor window.
@Balgoriusis
@Balgoriusis 3 жыл бұрын
@@Saboteur709 Yeah, I know. I just wanted to point out how terrible an experience the "old" VB languages and IDEs are.(Vb.net is ok)
@kevinwilson1218
@kevinwilson1218 3 жыл бұрын
i think i remember having to that issue trying to scroll in vb6
@bradlad1574
@bradlad1574 3 жыл бұрын
I always enjoy seeing your thought process in malware analysis. Good stuff!
@nickswink7983
@nickswink7983 3 жыл бұрын
Could the tangent lines be written to literally send you on a tangent as sort of a play on words
@GrumpyGrebo
@GrumpyGrebo 3 жыл бұрын
Yes, one of the key components of good obfuscation is "red herrings" which make reverse engineering much more time consuming. Obfuscation is not about hiding functionality (can still be disassembled with static analysis for example) but making it not worthwhile to determine how it does it, and thus identifying ahead of time if it is a threat/how to counteract it. "You" predominantly being heuristic AV software; AV software usually has a limited window of opportunity within which to give something a red flag or a green flag, otherwise it slows down performance and people leave it Norton 1 star reviews. If you can survive the gauntlet, you're through one of hopefully many secure doors in a multi-layered security solution, onto the next level.
@ArcaneVortex
@ArcaneVortex 3 жыл бұрын
I didn't think I could watch the entire video, but following your thought process was just super fascinating. Would be super interesting if you did a video about your workflow. Tools,Extensions and maybe some neat resources.
@azurnxo2134
@azurnxo2134 3 жыл бұрын
Learned a lot from this video. Please do more of these videos!
@ecluid1829
@ecluid1829 3 жыл бұрын
Hey John! I'm currently in school for CyberSecurity. Your videos are always interesting and I enjoy watching them in the background while helping myself code. Thanks for the content man :)
@0mni924
@0mni924 3 жыл бұрын
comment: "nice vid" purpose: "algorithm"
@serrendiptiy
@serrendiptiy 3 жыл бұрын
Fascinating stuff - thank you. Makes me realise now why I switched my brain off to learning coding when I was young. Just crossing my fingers that my yearly purchase of Bitdefender can cope, or that I remember to back up my drive very often!
@krlst.5977
@krlst.5977 3 жыл бұрын
That was interesting! Thank you, I had a lot of fun
@zawarudo1818
@zawarudo1818 3 жыл бұрын
I love that you sound so professional and you also are
@pathseeker5439
@pathseeker5439 3 жыл бұрын
This is surprisingly fun for me
@Captn16
@Captn16 3 жыл бұрын
I didn't think I was going to stay for the whole video Ended up staying for the whole channel
@ericvandertoorn6178
@ericvandertoorn6178 3 жыл бұрын
The regex for getting the line to work would've been [\s.]* ([] For characters to recognize, \s for any space character, . For any other char)
@tylisirn
@tylisirn 3 жыл бұрын
I don't think anything would have done it. If you read the status line it says the regexp is running out of stack space trying to pattern match the enormous file.
@NostraDavid2
@NostraDavid2 3 жыл бұрын
But . already includes whitespaces? After his initial (which was fine) he just needed a "(.+ )+End Function"
@NostraDavid2
@NostraDavid2 3 жыл бұрын
Oh wait. Does count as whitespace?
@ericvandertoorn6178
@ericvandertoorn6178 3 жыл бұрын
@@NostraDavid2 does count as whitespace. `.` usually doesn't include unless you set the flag for it
@NostraDavid2
@NostraDavid2 3 жыл бұрын
@@ericvandertoorn6178 right. Thanks!
@spicyburglar
@spicyburglar 3 жыл бұрын
Lol 5:00 "Yup and that spits up and dies". Good video!
@JuniorJunison
@JuniorJunison 3 жыл бұрын
I love how he describes his interaction with this vbs script as if he and it danced together.
@silent_wes8494
@silent_wes8494 3 жыл бұрын
I genuinely enjoyed this video!! Tbh this video got me motivated to learn more programming so that I can analyze malware. Can't wait to see more !!
@Salamialayksuwp
@Salamialayksuwp 3 жыл бұрын
9:09 It's always satisfying to find some actually humanly readable source code stuff 😅
@kochv87
@kochv87 3 жыл бұрын
Only 10min into the video and i already like it. I enjoy how you explain everything step by step!
@l15t3nr
@l15t3nr 3 жыл бұрын
More malware analysis please!!!
@carecDev
@carecDev 3 жыл бұрын
The best content about hacking. I'm Brazilian, but I learned English just by watching your videos.
@smokinamby
@smokinamby 3 жыл бұрын
That is impressive.🙌
@siddhantsiwach
@siddhantsiwach 3 жыл бұрын
this is more interesting than a suspense thriller movie
@nightchicken3517
@nightchicken3517 Жыл бұрын
Straight up hero. Finds a random script then cleans it up and updates to publish
@pratikjha3647
@pratikjha3647 3 жыл бұрын
Doing KZbin algorithm 'things' and expanding it.
@jonpopeadventures
@jonpopeadventures 3 жыл бұрын
Fascinating video, have never seen how malware is written and hidden and I've learnt a ton of stuff so thank you, easy Subscribe. Also, your phrase 'I know ive done this before', I feel you there
@xB-yg2iw
@xB-yg2iw 3 жыл бұрын
"More tangent functions, DIE" AHAHA
@congminhluu5068
@congminhluu5068 2 жыл бұрын
25:13 I can't say how happy am I to see another folk struggling to write regex. I mean you're probably way better at it than I am but I'm glad.
@TheAngelOfDeath01
@TheAngelOfDeath01 3 жыл бұрын
Google: "You are now using Dark Theme" No shit, Captain Obvious!
@KEVDJANGO
@KEVDJANGO 3 жыл бұрын
Please John. Be doing more of this religiously. You inspire programmers, cybersecurity enthusiasts in ways you can not understand. Keep up!
@1DrowsyBoi
@1DrowsyBoi 3 жыл бұрын
Me, randomly finding this video and have been learning C# for the past four months, staring at the end of every line: "... Where is it? Does this world know no law and order?"
@snuscaboose1942
@snuscaboose1942 3 жыл бұрын
;
@beazlay89
@beazlay89 3 жыл бұрын
yeah more of these, this video I really enjoyed and it was suspenseful, funny. Great workflow how you rename the functions to map a picture
@Julian-vi4vl
@Julian-vi4vl 3 жыл бұрын
microsoft: You must save your eyes, you have ads to look at.
@yGKeKe
@yGKeKe 3 жыл бұрын
Honestly, this is impressive both ways...Both that someone was smart enough to hide code in such a way, and that people are smart enough to find it.
@ray30k
@ray30k 3 жыл бұрын
Looks to me like stage one was just a lot of "weight" to try and hide the actual program's signature.
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