Re: Absurd mail headers in new spam

2017-06-02 Thread Kevin A. McGrail
On 6/1/2017 7:31 PM, John Hardin wrote: Interesting. I wonder how that affects RFC-2822 (et. al.) headers, and specifically, the X-Spam-* headers that SA emits? RFC 6648 is a best practice and "deprecates the convention for newly defined parameters with textual (as opposed to numerical) names

Re: Absurd mail headers in new spam

2017-06-02 Thread Rupert Gallagher
Ignore them. Focus on RFC compliant headers and reject anything that fails. Sent from ProtonMail Mobile On Thu, Jun 1, 2017 at 12:14 AM, Loren Wilton wrote: I see I have received several new spam messages today from what looks (to me) like a new tool. Admittedly these three were all caught as s

Re: Absurd mail headers in new spam

2017-06-01 Thread John Hardin
On Thu, 1 Jun 2017, A. Schulze wrote: John Hardin: any header that begins with "X-" is permitted. permitted - yes but I'm aware may user assisiate X- header still as private header. This is no longer true since 2012: https://tools.ietf.org/html/rfc6648 just to mention that... Andreas In

Re: Absurd mail headers in new spam

2017-06-01 Thread John Hardin
On Thu, 1 Jun 2017, Loren Wilton wrote: Hopeless-Forming-Philistinizes: jobs Lossy-Cabdriver: 2368db81dcf1 Alba-Leanness-Elections: 38376DB11A Merrimac-Grams-Participating: B354488539E Giving-Remarkably-Incriminate: drawl Dustin-Ransoming: 18 Person-Decathlon-Arnold: dfcfce7ba985 Majori

Re: Absurd mail headers in new spam

2017-06-01 Thread Axb
Nice to see you're around Loren. Been a looong time since we did stuff like headerSARE_MSGID_RATWARE2 MESSAGEID =~ /\<\d{10,15}\.\d{18,40}\@[a-z]+\>/ # no /i! describe SARE_MSGID_RATWARE2 Message-Id is score SARE_MSGID_RATWARE2 0.639 #hist SARE_MSGI

Re: Absurd mail headers in new spam

2017-06-01 Thread Bill Cole
On 1 Jun 2017, at 8:28, Loren Wilton wrote: If he is intending to hide tracking info in the headers, it seems pointless unless he is also writing an MTA of some sort that will see the headers. But maybe he didn't think that far, and it was his intent to hide tracking info. Still, it seems a li

Re: Absurd mail headers in new spam

2017-06-01 Thread Loren Wilton
If I were to guess, adding such headers is done to confuse tools that compute hashes based on headers or use bayes filtering on the entire mail, since it adds innocent words to the mail without showing them to most end-users. It doesn't confuse either Bayes or any hash I'm aware of. Just as a

Re: Absurd mail headers in new spam

2017-06-01 Thread RW
On Thu, 1 Jun 2017 01:59:44 +0200 (CEST) Kim Roar Foldøy Hauge wrote: > If I were to guess, adding such headers is done to confuse tools that > compute hashes based on headers or use bayes filtering on the entire > mail, since it adds innocent words to the mail without showing them > to most end-

Re: Absurd mail headers in new spam

2017-06-01 Thread A. Schulze
John Hardin: any header that begins with "X-" is permitted. permitted - yes but I'm aware may user assisiate X- header still as private header. This is no longer true since 2012: https://tools.ietf.org/html/rfc6648 just to mention that... Andreas

Re: Absurd mail headers in new spam

2017-06-01 Thread Loren Wilton
Hopeless-Forming-Philistinizes: jobs Lossy-Cabdriver: 2368db81dcf1 Alba-Leanness-Elections: 38376DB11A Merrimac-Grams-Participating: B354488539E Giving-Remarkably-Incriminate: drawl Dustin-Ransoming: 18 Person-Decathlon-Arnold: dfcfce7ba985 Majority-Gambles: 4f856 Buttock-Milky-Dogged: 8E626A

Re: Absurd mail headers in new spam

2017-05-31 Thread Benny Pedersen
Kim Roar Foldøy Hauge skrev den 2017-06-01 01:59: If I were to guess, adding such headers is done to confuse tools that compute hashes based on headers or use bayes filtering on the entire mail, since it adds innocent words to the mail without showing them to most end-users. bayes plugin: #

Re: Absurd mail headers in new spam

2017-05-31 Thread jdow
On 2017-05-31 16:59, Kim Roar Foldøy Hauge wrote: On Wed, 31 May 2017, John Hardin wrote: On Thu, 1 Jun 2017, Benny Pedersen wrote: John Hardin skrev den 2017-06-01 00:29: > That sort of thing has happened before, and there are rules to *try* > to catch nonsense headers in my sandbox,

Re: Absurd mail headers in new spam

2017-05-31 Thread Kim Roar Foldøy Hauge
On Wed, 31 May 2017, John Hardin wrote: On Thu, 1 Jun 2017, Benny Pedersen wrote: John Hardin skrev den 2017-06-01 00:29: > That sort of thing has happened before, and there are rules to *try* > to catch nonsense headers in my sandbox, but IIRC they never worked > well enough in massch

Re: Absurd mail headers in new spam

2017-05-31 Thread John Hardin
On Thu, 1 Jun 2017, Benny Pedersen wrote: John Hardin skrev den 2017-06-01 00:29: That sort of thing has happened before, and there are rules to *try* to catch nonsense headers in my sandbox, but IIRC they never worked well enough in masscheck to actually get published. would it be possib

Re: Absurd mail headers in new spam

2017-05-31 Thread Benny Pedersen
John Hardin skrev den 2017-06-01 00:29: That sort of thing has happened before, and there are rules to *try* to catch nonsense headers in my sandbox, but IIRC they never worked well enough in masscheck to actually get published. would it be possible to make list of non nonsense headers, and co

Re: Absurd mail headers in new spam

2017-05-31 Thread John Hardin
On Wed, 31 May 2017, Loren Wilton wrote: I see I have received several new spam messages today from what looks (to me) like a new tool. Admittedly these three were all caught as spam, but some of them were close and went over the edge on some local rules I have. The new tool is putting absolut

Absurd mail headers in new spam

2017-05-31 Thread Loren Wilton
I see I have received several new spam messages today from what looks (to me) like a new tool. Admittedly these three were all caught as spam, but some of them were close and went over the edge on some local rules I have. The new tool is putting absolutely absurd random headers in the spam mess