The attacker seems to be the admin of those two instances. Both instances have their registrations closed.

Edit: It is now open for both of them, or was already. I checked the Fediseer page for both instances and it still says that their registrations are closed.

Though it is suspicious that no captcha, email confirmation or manual approval is required for both of these instances. The admin of lemmy.doesnotexist.club seems to be inactive since their account creation yet this instance is still running. If the admin is the attacker, it could also be that they are the one behind the recent nicole spam.

https://gui.fediseer.com/instances/detail/chinese.lol

https://gui.fediseer.com/instances/detail/lemmy.doesnotexist.club

cross-posted from: https://hackertalks.com/post/8713785

The instances being used are

  • lemmy.doesnotexist.club
  • chinese.lol

Here is an example of the coordinated downvoting https://hackertalks.com/post/8692093

Of course its a controversial user who got someone angry enough to automated downvoting @DonaldJMusk@lemmy.today

But you can see every post they make gets 53ish downvotes from these two instances, plus some organic ones after a few hours.

Current downvoting Accounts

bot-list

LightIsland@chinese.lol MagnificentRow@chinese.lol FondKnowledge@chinese.lol SillyTowel95@chinese.lol HelplessDear@chinese.lol SomberBrain@chinese.lol InexperiencedCloset@chinese.lol NecessaryPerson11@chinese.lol ClosedEmployment@chinese.lol CoarseHair420@chinese.lol BurlyChampionship49@chinese.lol ZigzagNatural@chinese.lol QuestionableDirt@chinese.lol ProudDeparture@lemmy.doesnotexist.club JoyousDouble@chinese.lol UnitedPatience@chinese.lol MajesticArea@lemmy.doesnotexist.club SinfulConference@chinese.lol MoralDivide96@chinese.lol LeadingCarry65@chinese.lol FrillyOpinion38@lemmy.doesnotexist.club LimitedDiscount49@lemmy.doesnotexist.club ForkedScreen@chinese.lol MediumChemistry13@chinese.lol xXxLawfulGrassxXx@lemmy.doesnotexist.club VisibleSentence@chinese.lol AcidicLawyer90@lemmy.doesnotexist.club PriceySink14@lemmy.doesnotexist.club ExcellentBeach@chinese.lol VivaciousNews@lemmy.doesnotexist.club LankyIndependent32@lemmy.doesnotexist.club SpeedyFault@chinese.lol ConcreteHall89@lemmy.doesnotexist.club WorthyPoint12@lemmy.doesnotexist.club SurprisedAdult99@chinese.lol FlashyCrack@lemmy.doesnotexist.club MasculineBeing@chinese.lol RichWeird@lemmy.doesnotexist.club DryCash97@lemmy.doesnotexist.club AuthorizedChair@chinese.lol SlimKiss@lemmy.doesnotexist.club AromaticRoof78@lemmy.doesnotexist.club BewitchedInterview@lemmy.doesnotexist.club ImaginaryDraw@lemmy.doesnotexist.club PertinentGround@chinese.lol SinfulAssumption@lemmy.doesnotexist.club AwkwardAnybody30@lemmy.doesnotexist.club UnwillingRestaurant@lemmy.doesnotexist.club InsubstantialOven@lemmy.doesnotexist.club

A individual user airing their personal biases and manipulating lemmy isn’t good for the community, regardless of how you feel about their target. This is a really bad thing ™

  • Onno (VK6FLAB)@lemmy.radioEnglish
    71·
    5 days ago

    Can your detection method be automated and federated?

    I’m asking because this is probably the thin end of the wedge and is likely to increase exponentially, especially since anyone can set up an instance and do whatever they like with it.

    • asudox@lemmy.asudox.devOPEnglish
      29·
      5 days ago

      Wdym. Do you mean how I found out that the attacker was the admin? Yeah sure, you definitely can automate that.

  • anarchiddy@lemmy.dbzer0.comEnglish
    43·
    5 days ago

    Seems relatively painless to chop those two instances off - chinese.lol has less than 200 users, and I can’t even find instance info for doesnotexist.club (coincidence? i think NOT).

    I do personally wonder how difficult it is to spin up new instances though. How much effort would it be for them to create a new one and do it again?

    I’m actually most concerned with the IP leaking of the fediverse chick posts - hopefully some progress has been made with the IP leaking in auto-loaded external media through DM’s

    • SysAdmin@startrek.websiteEnglish
      5·
      4 days ago

      How much effort would it be for them to create a new one and do it again?

      Minimal, but it is the domain that gets blocked so the attacker would still need to purchase a new domain.

    • qaz@lemmy.worldEnglish
      5·
      5 days ago

      I checked the images and so far every image I’ve encountered linked to the users’s lemmy instance’s pictrs instance, none were hosted through a custom trackable image host.

    • SorteKanin@feddit.dkEnglish
      2·
      5 days ago

      I’m actually most concerned with the IP leaking

      I’m curious, what is it about IP leaking that concerns you? I’ve been thinking about it lately but I have a hard time seeing why it’s a problem.

      • Nailbar@sopuli.xyzEnglish
        2·
        4 days ago

        For one, you now know there is someone on the other end, so you can target your attacks instead of trying random ips.

    • Randelung@lemmy.worldEnglish
      1·
      5 days ago

      That’s what I’m afraid of. Once some bad actors realize Lemmy is as defenseless as it is, it’ll be carnage for a while. The only tool we have is defederation and it’s slow and borderline useless against spam or worse.

  • freamon@preferred.socialEnglish
    282·
    5 days ago

    The attacker seems to be the admin of those two instances. Both instances have their registrations closed.

    The alternative theory would be that these instances had open registrations, but rightly closed registration down after the admins noticed the bots. chinese.lol is on 0.18.4 with an admin with a 2 year old account, lemmy.doesnotexist.club has an admin with a 1 year account, and it was also that instance that the ‘nicole’ person has used before. This downvote attack would need to be a long time in the planning for what you’re suggesting to be true.

    • asudox@lemmy.asudox.devOPEnglish
      12·
      5 days ago

      Upon inspecting the actual websites, the registrations seem to be actually open for both instances with no email confirmation, captcha or manual approval as one user pointed out. I checked the Fediseer page for these instances. What is the update delay for Fediseer?

      • db0@lemmy.dbzer0.comEnglish
        11·
        5 days ago

        Should be 12 hours, unless they explicitly prevent us from accessing their nodeinfo. Which now that I think about it, I should probably notify on.

      • freamon@preferred.socialEnglish
        121·
        5 days ago

        What is the update delay for Fediseer?

        I don’t know. It’s not something I’m familiar with - it might just default to saying ‘closed’ if it doesn’t have the data.

        It’s interesting that the obvious bot accounts on those instances were set up in mid-March last year, so I’m guessing that these are somebody’s army that they’ve used before, but overplayed their hand when they turned it on the DonaldJMusk person. The admins can reasonably be blamed for setting up instances with open registrations and no protections and then forgetting about them, but I’d be wary of blaming them for being behind the attack directly. The ‘nicole’ person is unlikely to have used their own instance - it’s probably just someone with the same MO as whoever owns the bots, finding and exploiting vulnerable instances.

        • asudox@lemmy.asudox.devOPEnglish
          2·
          5 days ago

          it might just default to saying ‘closed’ if it doesn’t have the data.

          Nope. Fediseer displays unknown fields as N/A.

          The admins can reasonably be blamed for setting up instances with open registrations and no protections and then forgetting about them

          No, I don’t think they forgot. Would you forget about something you regularly pay for?

          • snooggums@lemmy.worldEnglish
            71·
            5 days ago

            People forget about subscriptions all the time when they are cheap enough. The admin might even have some kind of grouped payment for multiple domains/sites and doesn’t bother cleaning them out to shut them down.

  • Lovable Sidekick@lemmy.worldEnglish
    9·
    5 days ago

    Beats me what anybody would get out of vote manipulation on lemmy - there are no sponsors, no money involved AFAIK. What’s the payoff, upvotes?

    • conditional_soup@lemm.eeEnglish
      4·
      4 days ago

      Pettiness. I guess some people suffer from such extreme grass deficiency that they’ll go through all the trouble of setting up bots to do fully automated luxury harassment instead of small-batch hand-raised harassment.

    • Contramuffin@lemmy.worldEnglish
      3·
      4 days ago

      The person being downvoted is the mod of c/conservative. I’m guessing this is a political maneuver to bury his posts/bully him off lemmy

    • isles@lemmy.worldEnglish
      3·
      4 days ago

      Winning the hearts and minds in a propaganda / information war at relatively low cost

  • Grimy@lemmy.worldEnglish
    173·
    5 days ago

    We need public voting or this will only get worse. It’s currently way too easy to manipulate everyone’s feed.

    • fmstrat@lemmy.nowsci.comEnglish
      1·
      1 day ago

      What do you mean public voting? Everything in the Fediverse is public. Spin up a server and you can see all votes, even in the UI as an admin. Do you mean for users?

  • db0@lemmy.dbzer0.comEnglish
    9·
    5 days ago

    Edit: It is now open for both of them, or was already. I checked the Fediseer page for both instances and it still says that their registrations are closed.

    Fediseer doesn’t check constantly btw.

    • Rhoeri@lemmy.worldEnglish
      51·
      5 days ago

      Monk, seriously. Give it up. You got busted copying your Universal Monk comments word for word by the mods at /Politics. It’s over. Everyone knows it is you. If you truly wanted to make lemmy better, you’d stop trolling people with your alts and just leave and not hide out in your Universal Monk run communities where you can ban anyone that calls you out.

      At this point I am hoping that there should be very few left to buy this fake ass-kissing of yours.

      And hopefully, the mods of this community don’t fall for it and decide to check for themselves by reaching out to the /Politics mods.

      Ban evasion is taken pretty seriously. Especially by people that are legitimately trying to make lemmy awesome.

  • FrostyTrichs@crazypeople.onlineEnglish
    1317·
    5 days ago

    Being able to disable downvoting is one of the best features Lemmy has and I wish more instances would do it.

    Voting here doesn’t influence your feed and downvoting largely serves to spread negativity. Turning it off has a negligible impact on usability and an undeniable advantage when people decide their feelings matter more than someone else’s, like whatever this is.

    We’ve de-federated from both the instances being used for manipulative voting.

    • vurr@lemm.eeEnglish
      262·
      5 days ago

      I disagree. Downvoting is essential for Lemmy. I often disagree with something and it’s right to have a democratic vote on topics.

    • asudox@lemmy.asudox.devOPEnglish
      25·
      5 days ago

      Voting here doesn’t influence your feed

      It does when you use sorting algorithms that depend on it.

    • db0@lemmy.dbzer0.comEnglish
      12·
      5 days ago

      I want to see it per-community. We use voting for actually decision making in my instance, so we can’t disable it instance-wide.

      • FrostyTrichs@crazypeople.onlineEnglish
        31·
        5 days ago

        That would be a useful feature. Maybe something to roll out alongside private communities and things coming in the future.

    • Angry_Autist (he/him)@lemmy.worldEnglish
      52·
      5 days ago

      I fully disagree, in your scenario people wouldn’t realize how fucktastically bad your idea is

      Look at what removing downvotes did to youtube, you seriously want that here?

    • asudox@lemmy.asudox.devOPEnglish
      20·
      5 days ago

      The bots are from those two instances as you can see in the screenshot. Furthermore, lemmy.doesnotexist.club has had dozens of bots since at least 2023 (2 years after domain creation. found via the web archive). Since at least 2023, the admin hasn’t been doing anything, or even interacting with anyone. That account seems pretty much dead. But they keep hosting the instance for some reason. It is also a possibility that someone else indeed is using these two instances because they are “abandoned”, but it is highly likely that it is the admin. It is very suspicious that the registrations have been open unguarded against bots since at least 2023. These two instances have been invaded with bots long ago, so defederation is still the right thing to do.

      I also don’t want to jump to conclusions, but I think the chances are pretty high that it indeed is the admin. It might lead us to whoever is behind the recent nicole spam.

        • asudox@lemmy.asudox.devOPEnglish
          5·
          5 days ago

          Well yeah, there is no concrete evidence that it is the admin (or the admins). But the hints I found seem to be pointing that they are the one behind this. Of course there is a possibility that it is someone else, but it baffles me why anyone would leave the registrations open for 2 years, keep the instance running, but never interact with the fediverse through it themselves. And this isn’t exactly like kbin.social, the admin eventually did respond and close down the instance (not to mention, the admin was still communicating with the people). This instance and its bots have been going on for over 2 years, with not even a single sign of activity from the admin(s).

          Nevertheless, defederation is the right thing to do right now. Unless concrete evidence is found, we could put this aside.

      • keegomatic@lemmy.worldEnglish
        2·
        5 days ago

        FWIW:

        1. Around then, captchas were turned off by default for a short period of time (very stupidly, IMO), if I remember correctly, and a lot of bots were registered on a good number of instances. It was also when a lot of new instances were sprouting up because Lemmy was just gaining momentum.
        2. I have personally let certain things I host go on for years without checking them, because developers have ADHD more often than not, and autopay will keep your zombie in service for a long time if it’s not making a dent big enough to make you shut it down (hosting a low-activity anything is not usually very expensive).

        Not impossible that it’s just an absent admin.