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12/3/2022, 10:22:49 AM


Ruud
@ruud@mastodon.world
1 week(s) ago
To all Mastodon-admins: seems like there's an attack on all instances by troll
accounts. Servers get slow because of it.
They use thousands of subdomains of activitypub-troll.cf. My 'pull' queues
skyrocketed.

I now blocked the domain activitypub-troll.cf and all is back to normal. Please
check if you're hit too.
@Dwarf

@dwarf
@ruud@mastodon.world I'm running Misskey so I was targeted. The domains I've
seen in the attack are:

*.activitypub-troll.cf
*.misskey-forkbomb.cf
*.repl.co

12/3/2022, 10:22:49 AM (1 week(s) ago)
691

11

65

Kurzi
@shortriver@norden.social
1 week(s) ago
@dwarf @ruud@mastodon.world
Thank you for sharing!
@Dwarf
@dwarf
1 week(s) ago
@shortriver@norden.social @ruud@mastodon.world no problem. I think by now all
the common fedi server software that was vulnerable has issued a patch, so be
sure to update if you haven't already
Pacific Coast Highway
@pch_xyz@seediqbale.xyz
1 week(s) ago
@dwarf @ruud@mastodon.world https://misskey.io/notes/98bjizqtu4
Kris Nóva
@nova@hachyderm.io
1 week(s) ago
@dwarf @ruud@mastodon.world

Timing with what I suspect is the beginning of this.
(1 file(s))

ϻค𝔬ᑭ
@maop@mstdn.mx
1 week(s) ago
@nova@hachyderm.io @dwarf @ruud@mastodon.world

Here is another weird account:

cute_cat@onevery.ignorelist.com

If you open the remote profile it only spits JSON

https://onevery.ignorelist.com/users/cute_cat

Do you think is related to the forkbomb?
Show more
Jay
@jay@toot.zerojay.com
1 week(s) ago
@maop@mstdn.mx @nova@hachyderm.io @dwarf @ruud@mastodon.world I noticed this
user adding me as well a few days ago, and as soon as I saw the JSON it was
spitting out, I blocked it as I felt it was odd. I think it is related as it
does not appear that my instance got targetted at all.
@Dwarf
@dwarf
1 week(s) ago
@nova@hachyderm.io @ruud@mastodon.world Correct, it's quite impactful since it's
an infinite loop. It was noticeable on my end as well:RN: ...
daebb
@daebb@maly.io
1 week(s) ago
@dwarf @ruud@mastodon.world oh, repl.co belongs to https://replit.com/. They're
a legitimate platform, if you report this to them they'll likely be thankful and
ban the spammers on their site too
@Dwarf
@dwarf
1 week(s) ago
@daebb@maly.io @ruud@mastodon.world I would've, but they require signing up for
their service to report, which I will not do.
daebb
@daebb@maly.io
1 week(s) ago
@dwarf @ruud@mastodon.world I think that’s just for reporting an individual
malicious repl/user, but you don’t have that info anyway. They probably just
don’t have a procedure for something like this (yet). I’ll ping them on twitter
& attach a link to this thread.
Though an email to them with details would probably be helpful.
Brandon
@bh@pdx.sh
1 week(s) ago
@dwarf @ruud@mastodon.world Thank you both for posting these.

I'm wondering what method you all use to manage your block lists. Doing these
one-by-one in the admin UI is tedious. I see that you can import from CSV, so do
you keep a spreadsheet and just re-import after changeslike this blog post
suggests?
https://www.mguhlin.org/2022/11/blocking-mastodon-domains-list-you-can.html It
feels like there is potential for some automated block lists by category,
similar to what exists in the ad blocking space.
Show more
@Dwarf
@dwarf
1 week(s) ago
@bh@pdx.sh @ruud@mastodon.world I don't keep a list. I blocked these initial
instances but I have updated my fedi software to a version that does not loop
infinitely. It's better to have the software deal with it than play cat and
mouse endlessly.
Brandon
@bh@pdx.sh
1 week(s) ago
@dwarf @ruud@mastodon.world

It's not an either-or to me, but point taken. I'm planning to keep my instance
up to date AND keep a comprehensive block list to prevent bad actors from
causing disruptions to my users so I would like a more automated way of doing
so. :) Now that I took a closer look at the blog article I posted, it appears
that is only for user domain blocks, not server-wide. I know there's an API for
it so I'm hoping that someone has written a script and if they haven't, I
probably will. ;)
Show more
Baloo Uriza
@BalooUriza@social.tulsa.ok.us
1 week(s) ago
@dwarf @ruud@mastodon.world Add *.uber.space to that list.
Aimé Lacapelle
@nicod@diaspodon.fr
1 week(s) ago
@BalooUriza@social.tulsa.ok.us @dwarf @ruud@mastodon.world
Use #fediblock to alert on bad instances.
Uberspace Development
@dev@uberspace.social
1 week(s) ago
@BalooUriza@social.tulsa.ok.us @dwarf @ruud@mastodon.world please don't! We take
abuse handling seriously. Mail us at hallo@uberspace.de with spamming or
otherwise malicious instances and we'll take care of them. See
https://uber.space/ and https://uberspace.de/en/about/houserules/ Thank you!
Baloo Uriza
@BalooUriza@social.tulsa.ok.us
1 week(s) ago
@dev@uberspace.social Oh, my apologies, saw a few uber.space subdomains that fit
the pattern.

@dwarf @ruud@mastodon.world
Sebastian Lasse
@sl007@digitalcourage.social
7 day(s) ago
@BalooUriza@social.tulsa.ok.us @dev@uberspace.social @dwarf @ruud@mastodon.world

PLEASE DO NOT !!!
Some official ActivityPub pages are hosted on uber too.
https://redaktor.me/
Do not use a wildcard for any webhost cause you will block random.

Maybe you want to edit your original comment and mention the subdomains rather
than a wildcard.
:)
Sebastian Lasse
@sl007@digitalcourage.social
7 day(s) ago
@BalooUriza@social.tulsa.ok.us
btw, justification why especially blocking this host would be unfair:
Working for a Public Broadcaster in the same city and visited Jonas of the host
just to talk about ActivityPub some years ago and also the offered coffees were
nice.

@dev@uberspace.social @dwarf @ruud@mastodon.world
@Dwarf
@dwarf
1 week(s) ago
@BalooUriza@social.tulsa.ok.us @ruud@mastodon.world I patched my own server to
ignore featured:
INFO * [remote ap] Ignoring request to update featured, who cares lmfao.
Not a clean fix but it's not something we use on this instance so I might as
well enjoy the performance boost of it.
@Dwarf
@dwarf
1 week(s) ago
@dwari@mstdn.satania.social alsoRN: ...
dwari
@dwari@mstdn.satania.social
1 week(s) ago
@dwarf ahhhh thank you!!
Puniko
@puniko@mk.absturztau.be
1 week(s) ago
@dwarf @ruud@mastodon.world iirc the misskey-forkbomb also seems to be affecting
mastodon.

misskey and foundkey (and probably calckey too) has pushed an update to fix it
aqz/tamaina
@aqz@p1.a9z.dev
1 week(s) ago
@dwarf @ruud@mastodon.world Instance blocks do not support wildcards.
Ruarí Ødegaard
@ruario@social.vivaldi.net
1 week(s) ago
@aqz@p1.a9z.dev @dwarf @ruud@mastodon.world Yes they do if subdomains

https://github.com/mastodon/mastodon/issues/11558
(1 file(s))

恵真
@emma@niscii.xyz
1 week(s) ago
@ruario@social.vivaldi.net @aqz@p1.a9z.dev @dwarf @ruud@mastodon.world i think
they were saying they are not supported on misskey
aqz/tamaina
@aqz@p1.a9z.dev
1 week(s) ago
@ruario@social.vivaldi.net @dwarf @ruud@mastodon.world I was in a hurry and told
you about Misskey. Sorry.
Shingo Mouse
@ShingoMouse@mastodon.social
1 week(s) ago
@dwarf @ruud@mastodon.world Well, I just ended up using a CVS import method that
I found for Mastodon to block all domains listed here on my end just to be on
the safe side.

https://medium.com/@theghostoftomjoad/how-to-block-server-domains-in-mastodon-899b24f8fb6e
Ruud
@ruud@mastodon.world
1 week(s) ago
@dwarf Oh, I'm also running misskey, but hadn't noticed yet. I'll check those
other ones as well, thanks!


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