[tor-relays] The 9001-9051-v0.2.8.9 Gang: 57 relays and counting...

David Goulet dgoulet at torproject.org
Tue Feb 28 14:19:24 UTC 2017

On 28 Feb (02:09:00), nusenu wrote:
> Donncha O'Cearbhaill:
> > nusenu:
> >> This group is still growing.
> >>
> >> Note that the following table is _not_ sorted by FP.
> >>
> >> The FP links these relays even across ISP, and given the FP column
> >> pattern it might be obvious what they are after.
> >>
> >> They do not have the hsdir flag yet.
> >>
> >> https://raw.githubusercontent.com/nusenu/tor-network-observations/master/2017-02-24_9001-9051-v0.2.8.9.txt
> >>
> > 
> > Nusenu, thank you for reporting these relay. They are now in the process
> > of being removed from the network.
> Thanks for letting us know.
> It would be nice if you could share:


I'll try to help out as much as I can here.

> - if you reached out to the operator (via abuse contacts)

We do that if a valid contact address is present. In this case, we had only
one I believe and still no response. Email was sent yesterday ~afternoon EST.

> - removal reason

Proximity of fingerprint indicates a clear attempt at insertion in the
hashring for an (some) onion address. We are *always* better safe than sorry
with bad relays so even without a 100% confirmation, we go ahead.

> - what was removed

That, we don't disclose for obvious reasons that if the attackers can see what
we removed and when, it makes it easier for them to just adapt in time. Only
subscribers to bad-relays@ can know this.

However, those reject/badexit entries at the directory authority level expire
after a time period and when they do, they become public here in this DocTor
script that monitors any relay that we've expired and will be there for a 6
months period:


After that 6 months, you can find commit like this that removes a bunch of


> - method (by FP, IP, IP-range, ...)

We always reject both FP and IP. Sometimes, it can be a full network range.
Depends on the attack.

> - how long they will be blacklisted

The standard time period is 90 days *but* it's still a human that does that so
it goes beyond that time period sometimes. *HUGE* network block though, we are
more careful at not extending too much the reject time.

> - time of removal

We don't disclose that for now. Only subscribers to bad-relays@ can know this.

There has been *MANY* discussions about having this reject list public and
everything in the open. I believe it wasn't full agreement in the end but for
now it went towards keeping it close.


> thanks,
> nusenu

> _______________________________________________
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> tor-relays at lists.torproject.org
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