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Curious Mind @lemmy.world to No Stupid Questions@lemmy.world · 2 days ago

How to check whether a particular url is safe or not ?

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How to check whether a particular url is safe or not ?

Curious Mind @lemmy.world to No Stupid Questions@lemmy.world · 2 days ago
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  • coherent_domain@infosec.pub
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    2 days ago

    In general only click on a link if you trust the domain. A URL usually looks like this: https://first.second.third/… And only the second and the thrid word between dots are important.

    For example: https://suspicious.google.com/ is in general fine, since the second and third word is google.com . However, https://lemmy.legit-lemmy.world/ is unsafe, because the second and thrid word are legit-lemmy.world, but not lemmy.world.

    There are ways to smuggle unsafe asset under legit URL, usually by uploading them on google drive, github etc. The good rule of thumb is to never run anything on your computer unless you are absolutely sure it comes from trusted source, like from official website.

    Official download webpage tends to have very descriptive and short URL, like

    • https://zoom.us/download
    • https://www.microsoft.com/en-us/software-download/windows11/

    If you see long random strings on the download webpage then it is likely unsafe, for example:

    • https://drive.google.com/Bt57Fgh90jkU=
    • go $fsck yourself@lemmy.world
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      1 day ago

      Definitely don’t click on links like this one: https://trustmethisisnotascam.com/

    • Successful_Try543@feddit.org
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      1 day ago

      Recently it has become a problem that optical twins of legit URLs exist, where some letters have been replaced by alike letters (homoglyphs) from different alphabets, see e.g. the list in this link.

      Edit: Edge and Vivaldi seem to replace those letters by Punycode automalically, where in Firefox network.IDN_show_punycode needs to be enabled in the about:config.
      bleepingcomputer.com

      • tyler@programming.dev
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        1 day ago

        I’m pretty sure ff shows punycode automatically. I’ve never had to touch it at least and I get punycode.

        • Successful_Try543@feddit.org
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          16 hours ago

          Tbf, the article is from 2018. It possibly has changed in the meantime.

      • joshchandra@midwest.social
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        1 day ago

        Dang. Is there an equivalent Firefox add-on that checks for this stuff?

        No Homo Graphs was last updated in 2020.
        URL unicode verifier was last updated in 2023 and only has 1 review.

        It’d be nice to find something more recent.

        • tyler@programming.dev
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          6 hours ago

          Ff shows punycode. The article is quite old.

      • Curious Mind @lemmy.worldOP
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        1 day ago

        social

        How can the configuration be done on the Android phone ?

  • FistingEnthusiast@lemmynsfw.com
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    2 days ago

    Open it on your work computer like I do, to avoid problems with my personal device

    • Zachariah@lemmy.world
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      2 days ago

      this one trick IT hates

  • edric@lemm.ee
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    1 day ago

    Someone else already mentioned it, but virustotal can check if the url is malicious. It’s not 100% of course but more often than not it will catch a malicious url. It’s a quick and easy way to check on-the-fly.

  • Petersson@feddit.org
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    2 days ago

    virustotal.com can help at least somewhat.

    • Petersson@feddit.org
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      1 day ago

      + Norton Safe Web

  • joshchandra@midwest.social
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    1 day ago

    From gentlest to strongest intensity:

    • URLCheck
    • AdNauseam
    • NoScript

    I use all 3. NoScript actually isn’t needed for uBlock Origin and any forks of it like AdNauseam because they can also selectively disable/enable JavaScript, but I can’t seem to find the section to do so in AdNauseam…

  • NutinButNet@hilariouschaos.com
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    2 days ago

    You can check URLs and files at virustotal.com for free.

    If you have Windows 10/11 Pro and your computer supports virtualization, you can enable the Windows Sandbox in Windows Features too. This creates a temporary virtual machine with the bare essentials and no antivirus built in for testing stuff like this to see what the worst case scenario is if you visited/accessed.

    • Curious Mind @lemmy.worldOP
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      2 days ago

      I work on my small Samsung Android phone. Is there any means of creating a sandbox here ?

      • NutinButNet@hilariouschaos.com
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        1 day ago

        I’m not familiar on that platform, unfortunately, as I’m on iPhone.

        But I think you should still be able to use virustotal’s website on mobile to check websites and also files.

        There may be a sandbox app available for Android, but I’m not aware of any particular ones to recommend.

    • AmidFuror@fedia.io
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      1 day ago

      Nice try. I’m not visiting virustotal.com.

  • Nurse_Robot@lemmy.world
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    1 day ago

    Use a friends computer

  • lemmyingly@lemm.ee
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    2 days ago

    If it’s a website use a website preview online service.

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