JavaScript Malware - How bad can it be?

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  • Опубліковано 9 лис 2024

КОМЕНТАРІ • 75

  • @siddharthrajdubey
    @siddharthrajdubey 3 роки тому +6

    Hello Colin, just wanted to take a moment to appreciate your content, very informative.
    Could you please create a detailed video for students who want to get into Malware analysis, how should they study, what courses can they take? So on.

    • @cybercdh
      @cybercdh  3 роки тому +1

      Hey thanks for the feedback, and that's a great suggestion. I'll give it some thought and look to pull something together :)

  • @mytechnotalent
    @mytechnotalent 3 роки тому +3

    Damn that is some patience Colin well done!

  • @mytechnotalent
    @mytechnotalent 3 роки тому +4

    Colin I am writing you here in what I am sure will be a future video regarding Kaseya. What overwhelms me is that Kaseya's VSA agent code which provided a unified remote-monitoring tool for managing networks and endpoints software which is aimed at enterprises and managed service providers (MSPs) allowed full ROOT access. Kaseya requires that its software agents running in their client's systems be given anti-malware exclusions for it's application and it's agent's working folders. Therefore ANYTHING executed by the Kaseya agent monitor in it's clients machines is allowed to run with full privileges and is ignored by any anti-malware protections.

    • @cybercdh
      @cybercdh  3 роки тому

      Yeh nice point. I’m actually currently editing some content on this Kaseya incident with some interesting stuff about the attack 👍👍

    • @mytechnotalent
      @mytechnotalent 3 роки тому

      @@cybercdh remember me when your all famous! :) I can't wait to see the new video!

    • @cybercdh
      @cybercdh  3 роки тому

      @@mytechnotalent 😂😂

    • @mytechnotalent
      @mytechnotalent 3 роки тому

      @@cybercdh LOL

  • @matth3wc
    @matth3wc 3 роки тому +10

    I visited a normal site and I guess someone highjacked it, because i was redirected me to a page that said Edge was out of date and automatically downloaded a zip file which contained a JavaScript file. Much simpler than this one in your video though. The JavaScript makes a request to some website and will download some payload and tries to execute it. If you want to take a look at it I could send it to you or something.

    • @hashcat253
      @hashcat253 2 роки тому

      Hijack*

    • @Xxut
      @Xxut 2 роки тому

      @@hashcat253 jackass*

  • @captainkatz1775
    @captainkatz1775 3 роки тому +2

    Glad I discovered your channel its exactly what I've been looking for awesome content!

    • @cybercdh
      @cybercdh  3 роки тому

      great to hear it, welcome!

  • @dejadejic5186
    @dejadejic5186 3 роки тому +3

    Awesome, thanks Colin!

  • @D_Tech_And_Trek
    @D_Tech_And_Trek 3 роки тому +2

    Very practical approach Colin. Thanks!

  • @lancemarchetti8673
    @lancemarchetti8673 Рік тому +1

    Love Win7 32bit ! ♥ I'm currently working on a technique to embed js in jpg binary without LSB/MSB methods, but rather Base64 obfuscation... decoded back to ascii. Definitely one the hardest projects I've tackled to date...but it's been a great learning process. Thanks for your interesting vids.

  • @andrewh619
    @andrewh619 3 роки тому +1

    My BOIIII. let’s go. Love ur videos man

    • @cybercdh
      @cybercdh  3 роки тому

      Thanks! I appreciate it

  • @imxande6930
    @imxande6930 2 роки тому +7

    Idk how people have time to implement stuff like this, is crazy, and here I’m struggling trying to center a div 😅

  • @andrewfraser2760
    @andrewfraser2760 3 роки тому +2

    Good stuff Colin 👍

  • @marcelo.trajano
    @marcelo.trajano 2 роки тому

    your channel is definitely all i was looking for long time! thank you so much for the work!

    • @cybercdh
      @cybercdh  2 роки тому +1

      I appreciate it thanks man

  • @Biotoxic510
    @Biotoxic510 2 роки тому +1

    Subscribed! Great video! Thanks for your time! JS for life!!!

  • @omaroobaniessa1821
    @omaroobaniessa1821 3 роки тому +3

    Really informative video

  • @rblxcondogamesrblxcondogames
    @rblxcondogamesrblxcondogames 4 місяці тому +1

    first time ever hearing of cscript and wscirpt.

  • @hontar
    @hontar 2 роки тому +1

    Hi Mathew, how is the malware breaking out of the sandbox in this case in order to drop and execute a file?

  • @Mark-mv1fy
    @Mark-mv1fy 2 роки тому +1

    This video really proves how powerful JavaScript can be, also, if JavaScript can make powerful malware, could it make a powerful antivirus?

    • @hashcat253
      @hashcat253 2 роки тому

      Malware is software it can be scripted so yes it definitely can

  • @ElijahAlcantara
    @ElijahAlcantara 3 роки тому +1

    can these malware still run on updated browsers? would whatever windows security or antivirus/antimalware stop these type of js from being clicked?

  • @marcohiltebrand6471
    @marcohiltebrand6471 3 роки тому

    very nice video, thank you Colin

  • @ibrahimahmed1996
    @ibrahimahmed1996 3 роки тому +1

    How do you document IOCs when completing malware analysis ?

    • @cybercdh
      @cybercdh  3 роки тому

      That could actually be a useful short video in the future, but for a quick reply - use monitoring tools to monitor the process, disk, network and registry activity (such as ProcMon) whilst behaviourally analysing the code; and also looking for the same artefacts when statically analysing code also. And keep lots of notes along the way :)

  • @grimmelle8908
    @grimmelle8908 2 роки тому +1

    love it. good video!

  • @happyman9666
    @happyman9666 3 роки тому

    how can we decide which recipe to select for the code you want to decode , do you have any tricks for that . Please let me know , i feel confused while using cyberchef

  • @neonik6204
    @neonik6204 2 роки тому +1

    Where did you get the malware from, coz i would like to tinker with please...

    • @cybercdh
      @cybercdh  2 роки тому

      Links are in the description

  • @MN-GAMERS4
    @MN-GAMERS4 Рік тому +3

    sir i wanna learning about cyber security or ethnical hacking but i don"t know how i"m learning

  • @MadAnimal100
    @MadAnimal100 3 роки тому +1

    At what point would JavaScript like that execute? After visiting a web page with that malicious code?

    • @cybercdh
      @cybercdh  3 роки тому +2

      this JS would execute by the victim double clicking the file in Windows. That's one of the points I was trying to convey in the video is that JS doesn't only just run in the browser.

    • @MadAnimal100
      @MadAnimal100 3 роки тому

      @@cybercdh thanks for the reply! Makes sense, cheers

    • @rednexie
      @rednexie 2 роки тому

      @@cybercdhactually, JavaScript and Microsoft JScript aren't the same.Unlike JScript, Javascript runs on the browser. JScript is something like VBScript, it is a normal script language

  • @peterkim9696
    @peterkim9696 3 роки тому

    You're dope man keep up your great content 👏👏👏👏👏👏👏❤

  • @moaazwali2367
    @moaazwali2367 2 роки тому +3

    0:32 asian parents would be upset

  • @BrandonNozakiMiller
    @BrandonNozakiMiller 2 роки тому +3

    -document.querySelector('video').playbackRate = 4; console.log('❤');

  • @cybersecurity3523
    @cybersecurity3523 3 роки тому +2

    Good bro

  • @Paccc.
    @Paccc. Рік тому +2

    why do you still use windows 7?

    • @cybercdh
      @cybercdh  Рік тому

      Why not?

    • @Paccc.
      @Paccc. Рік тому

      @@cybercdh what windows is the best for coding?

    • @novianindy887
      @novianindy887 Рік тому

      you dont understand.
      Since most malwares target windows, how can you learn to secure windows / analyze the malware if you dont use windows?
      And for hackers, if you want to create sophisticated malware, you have to learn the ins and outs of windows, because 70% of world pc users are windows.
      So, as security guys, if you dont use windows, you dont really know anything about security.

    • @bitonic589
      @bitonic589 Рік тому +1

      @@novianindy887 windows 7 is an old version of windows

    • @sunset6958
      @sunset6958 Рік тому

      Windows 7 is the most aesthetically pleasing and not slow as hell like windows 10 if you’re on a potato pc windows 7 is better lol it’s my fav but you don’t have to use it if you don’t want to it doesn’t really matter

  • @taseenalam
    @taseenalam 2 роки тому

    my website also has the same ugly set of codes as the PayPal example you showed. Can I fix it anyhow?

  • @Hellohellohello803
    @Hellohellohello803 Рік тому

    Stop revealing all our secrets as pentesters. 😂

    • @vishalr7959
      @vishalr7959 Рік тому +2

      How will I then learn. 🥺

    • @TexterEX
      @TexterEX Рік тому

      Jesus Loves you REPENT OF YOUR SINS!

    • @HussleMylastname-pk3uu
      @HussleMylastname-pk3uu 2 місяці тому

      @@vishalr7959 than Learn how to Learn whatever u wanna learn.

  • @S-Lomar
    @S-Lomar Рік тому

    💞💞💞💞💞💞💞💞💓💓💓💓💕💕 thanks for this clear explanation 💕😁😉

  • @RedStone576
    @RedStone576 Рік тому

    javascript? malware??

  • @miltoncornielljimenez345
    @miltoncornielljimenez345 3 роки тому

    bro can you help me to descompile some EX4 file ?