Anyone else seeing spammy-looking signups from QUALITYNETWORK IP ranges?

Definitely looks like a spam campaign. So far all accounts signed up from the same ISP. Here's a script you can paste in your rails console to find all users from IP ranges belonging to that ISP (assuming I didn't miss any):

gist.githubusercontent.com/pat

To get to the rails console, run this in /home/mastodon/live as the mastodon user:

RAILS_ENV=production bundle exec rails c

You might also want to temporarily ban those IP ranges if the sign-ups don't stop. I did.

Here's a slightly revised CIDR list that seems to cover all the IPs used by the spammers so far:

gist.github.com/patf/1ae99fdd1

(some CIDRs are redundant because they're from different sources)

Hopefully that'll do for now.

Follow

Here's a version of the block list you can dump in your nginx to get rid of the bots:

gist.github.com/patf/1ae99fdd1

The advantage of using nginx here instead of your firewall/iptables is that you'll have an easier time checking for false-positives in logs (in case I fucked up); the bots follow a predictable pattern (GET / then GET /auth/sign_up) while real traffic would stand out.

cc @Gargron

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