* A look at free.usenet reveals the need for matching on high entropy random strings
@ 2023-07-04 20:34 Richmond
2023-07-04 22:17 ` Emanuel Berg
0 siblings, 1 reply; 7+ messages in thread
From: Richmond @ 2023-07-04 20:34 UTC (permalink / raw)
To: info-gnus-english
A look at free.usenet reveals the need for matching on high entropy
random strings. These are being used in the from header to thwart
filters. It ought to be possible to match on a high entropy string. Is
it possible? Perhaps re-use password strength measuring code.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: A look at free.usenet reveals the need for matching on high entropy random strings
2023-07-04 20:34 A look at free.usenet reveals the need for matching on high entropy random strings Richmond
@ 2023-07-04 22:17 ` Emanuel Berg
2023-07-04 22:37 ` Richmond
0 siblings, 1 reply; 7+ messages in thread
From: Emanuel Berg @ 2023-07-04 22:17 UTC (permalink / raw)
To: info-gnus-english
Richmond wrote:
> A look at free.usenet reveals the need for matching on high
> entropy random strings. These are being used in the from
> header to thwart filters.
Are you on Usenet with news.eternal-september.org ?
--
underground experts united
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: A look at free.usenet reveals the need for matching on high entropy random strings
2023-07-04 22:17 ` Emanuel Berg
@ 2023-07-04 22:37 ` Richmond
2023-07-04 23:05 ` Richmond
2023-07-04 23:58 ` Emanuel Berg
0 siblings, 2 replies; 7+ messages in thread
From: Richmond @ 2023-07-04 22:37 UTC (permalink / raw)
To: info-gnus-english
Emanuel Berg <incal@dataswamp.org> writes:
> Richmond wrote:
>
>> A look at free.usenet reveals the need for matching on high
>> entropy random strings. These are being used in the from
>> header to thwart filters.
>
> Are you on Usenet with news.eternal-september.org ?
I am on usenet with news.solani.org . I forgot that
gmane.emacs.gnus.user is a mailing list. I am looking for a way to
filter out spam from newsgroup free.usenet although I think maybe there
is nothing else in there.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: A look at free.usenet reveals the need for matching on high entropy random strings
2023-07-04 22:37 ` Richmond
@ 2023-07-04 23:05 ` Richmond
2023-07-04 23:32 ` Richmond
2023-07-04 23:58 ` Emanuel Berg
1 sibling, 1 reply; 7+ messages in thread
From: Richmond @ 2023-07-04 23:05 UTC (permalink / raw)
To: info-gnus-english
Richmond <dnomhcir@gmx.com> writes:
> Emanuel Berg <incal@dataswamp.org> writes:
>
>> Richmond wrote:
>>
>>> A look at free.usenet reveals the need for matching on high
>>> entropy random strings. These are being used in the from
>>> header to thwart filters.
>>
>> Are you on Usenet with news.eternal-september.org ?
>
> I am on usenet with news.solani.org . I forgot that
> gmane.emacs.gnus.user is a mailing list. I am looking for a way to
> filter out spam from newsgroup free.usenet although I think maybe there
> is nothing else in there.
Maybe I can use
grep -P '<.{128,}>'
on the from field?
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: A look at free.usenet reveals the need for matching on high entropy random strings
2023-07-04 23:05 ` Richmond
@ 2023-07-04 23:32 ` Richmond
2023-07-05 0:05 ` Emanuel Berg
0 siblings, 1 reply; 7+ messages in thread
From: Richmond @ 2023-07-04 23:32 UTC (permalink / raw)
To: info-gnus-english
Richmond <dnomhcir@gmx.com> writes:
> Richmond <dnomhcir@gmx.com> writes:
>
>> Emanuel Berg <incal@dataswamp.org> writes:
>>
>>> Richmond wrote:
>>>
>>>> A look at free.usenet reveals the need for matching on high
>>>> entropy random strings. These are being used in the from
>>>> header to thwart filters.
>>>
>>> Are you on Usenet with news.eternal-september.org ?
>>
>> I am on usenet with news.solani.org . I forgot that
>> gmane.emacs.gnus.user is a mailing list. I am looking for a way to
>> filter out spam from newsgroup free.usenet although I think maybe there
>> is nothing else in there.
>
> Maybe I can use
>
> grep -P '<.{128,}>'
>
> on the from field?
If I say (L)ower (a)uthor (r)egular expression (p)ermanent and then
enter ^.{128,}$ that should match any from field of more than 127
characters right? It doesn't work. Nothing I have tried works.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: A look at free.usenet reveals the need for matching on high entropy random strings
2023-07-04 22:37 ` Richmond
2023-07-04 23:05 ` Richmond
@ 2023-07-04 23:58 ` Emanuel Berg
1 sibling, 0 replies; 7+ messages in thread
From: Emanuel Berg @ 2023-07-04 23:58 UTC (permalink / raw)
To: info-gnus-english
Richmond wrote:
>>> A look at free.usenet reveals the need for matching on
>>> high entropy random strings. These are being used in the
>>> from header to thwart filters.
>>
>> Are you on Usenet with news.eternal-september.org ?
>
> I am on usenet with news.solani.org .
OK!
> I forgot that gmane.emacs.gnus.user is a mailing list. I am
> looking for a way to filter out spam from newsgroup
> free.usenet although I think maybe there is nothing else
> in there.
Probably people will say stop using Usenet so let me instead
say, good luck with that and keep us posted ...
--
underground experts united
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: A look at free.usenet reveals the need for matching on high entropy random strings
2023-07-04 23:32 ` Richmond
@ 2023-07-05 0:05 ` Emanuel Berg
0 siblings, 0 replies; 7+ messages in thread
From: Emanuel Berg @ 2023-07-05 0:05 UTC (permalink / raw)
To: info-gnus-english
Richmond wrote:
> If I say (L)ower (a)uthor (r)egular expression (p)ermanent
> and then enter ^.{128,}$ that should match any from field of
> more than 127 characters right? It doesn't work.
> Nothing I have tried works.
(re-search-forward "^.\\{10,\\}$")
;; hide
;; 456789
;; find me, 10+ chars
--
underground experts united
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 7+ messages in thread
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2023-07-04 20:34 A look at free.usenet reveals the need for matching on high entropy random strings Richmond
2023-07-04 22:17 ` Emanuel Berg
2023-07-04 22:37 ` Richmond
2023-07-04 23:05 ` Richmond
2023-07-04 23:32 ` Richmond
2023-07-05 0:05 ` Emanuel Berg
2023-07-04 23:58 ` Emanuel Berg
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