Re: Block "exe" in attachment.

2013-11-14 Thread Walter Hurry
On Thu, 14 Nov 2013 18:44:05 +0100, Benny Pedersen wrote: > Antony Stone skrev den 2013-11-14 10:38: > >> Or MailScanner. > > or stop using a computer where exe files can be used :) +1

Re: what is that number at the beginning of .cf files signify?

2013-11-14 Thread Kevin A. McGrail
On 11/14/2013 4:04 PM, Benny Pedersen wrote: Kevin A. McGrail skrev den 2013-11-14 21:43: I believe you want this information: http://wiki.apache.org/spamassassin/RuleFilenameConventions .pm part is not correct, since its entirely up to the pre files to load what is needed even with files no

Re: what is that number at the beginning of .cf files signify?

2013-11-14 Thread Benny Pedersen
Kevin A. McGrail skrev den 2013-11-14 21:43: I believe you want this information: http://wiki.apache.org/spamassassin/RuleFilenameConventions .pm part is not correct, since its entirely up to the pre files to load what is needed even with files not ending in .pm :) but use .pm for perl modu

Re: what is that number at the beginning of .cf files signify?

2013-11-14 Thread Benny Pedersen
Rob McEwen skrev den 2013-11-14 21:13: what is that number at the beginning of .cf files signify? Does that impact SA's actual operation? Or is that just for human organization of files (how they sort when browsing them)? When adding a custom-written .cf file that is made available to the publ

Re: what is that number at the beginning of .cf files signify?

2013-11-14 Thread Kevin A. McGrail
On 11/14/2013 3:13 PM, Rob McEwen wrote: what is that number at the beginning of .cf files signify? Does that impact SA's actual operation? Or is that just for human organization of files (how they sort when browsing them)? When adding a custom-written .cf file that is made available to the pu

what is that number at the beginning of .cf files signify?

2013-11-14 Thread Rob McEwen
what is that number at the beginning of .cf files signify? Does that impact SA's actual operation? Or is that just for human organization of files (how they sort when browsing them)? When adding a custom-written .cf file that is made available to the public, should some kind of naming convention

Re: Block "exe" in attachment.

2013-11-14 Thread Benny Pedersen
David F. Skoll skrev den 2013-11-14 18:56: > Some statistics: On our main scanning cluster on 2013-11-13, we > blocked 176,668 messages with EXE files in zip files. ClamAV only > detected 4,610 viruses. and foxhole rules wont change that ? Possibly... haven't tested them because I already

Re: Block "exe" in attachment.

2013-11-14 Thread Benny Pedersen
Henrik K skrev den 2013-11-14 16:49: Funny that the thread is mostly anything other than SA.. ;-) +1 I guess I have to create a "Zipinfo" plugin for SA, had that in mind for a while.. and possible use some idears from extracttext plugin ? hands up if you make it

Re: Block "exe" in attachment.

2013-11-14 Thread David F. Skoll
On Thu, 14 Nov 2013 18:54:45 +0100 Benny Pedersen wrote: > > Some statistics: On our main scanning cluster on 2013-11-13, we > > blocked 176,668 messages with EXE files in zip files. ClamAV only > > detected 4,610 viruses. > and foxhole rules wont change that ? Possibly... haven't tested them

Re: Block "exe" in attachment.

2013-11-14 Thread Benny Pedersen
David F. Skoll skrev den 2013-11-14 14:57: Some statistics: On our main scanning cluster on 2013-11-13, we blocked 176,668 messages with EXE files in zip files. ClamAV only detected 4,610 viruses. and foxhole rules wont change that ? stats are stats, real life is real problem :=)

Re: Block "exe" in attachment.

2013-11-14 Thread Benny Pedersen
Kamaldeep Singh skrev den 2013-11-14 10:46: Thanks for information. But I have written one rule to block exe file. Like if someone sends an email with attached exe file. It won't send. It's display an error like "this attached file is blacklisted". this is using amavisd imho if you see this

Re: Block "exe" in attachment.

2013-11-14 Thread Benny Pedersen
Robert Schetterer skrev den 2013-11-14 10:46: http://www.cyberciti.biz/tips/postfix-block-mime-attachment-files.html who will show a milter-reqex conf that does it ? i just dont want postfix to be a content scanner

Re: Block "exe" in attachment.

2013-11-14 Thread Axb
On 11/14/2013 06:42 PM, Benny Pedersen wrote: Sanesecurity skrev den 2013-11-14 12:40: i created another one for html attachment i see no risk in this rule :) # junc.filename.cdb junc.filename.1:CL_TYPE_MAIL:*:.html$:*:*:*:*:*:* if it is, change cdb to cdu ClamAV list is >> [there]

Re: Block "exe" in attachment.

2013-11-14 Thread Benny Pedersen
Antony Stone skrev den 2013-11-14 10:38: Or MailScanner. or stop using a computer where exe files can be used :)

Re: Block "exe" in attachment.

2013-11-14 Thread Benny Pedersen
Sanesecurity skrev den 2013-11-14 12:40: i created another one for html attachment i see no risk in this rule :) # junc.filename.cdb junc.filename.1:CL_TYPE_MAIL:*:.html$:*:*:*:*:*:* if it is, change cdb to cdu

Re: Block "exe" in attachment.

2013-11-14 Thread Benny Pedersen
Kamaldeep Singh skrev den 2013-11-14 10:28: We are using SpamAssassin of version 3.3.1 running on Perl version 5.10.1. irelevant :) I just want to know, Is it possible to block the "exe" file with attached zip/tar file. http://sanesecurity.com/usage/signatures/ the foxhole rule is just f

Re: Block "exe" in attachment.

2013-11-14 Thread John Hardin
On Thu, 14 Nov 2013, Axb wrote: On 11/14/2013 10:38 AM, Antony Stone wrote: On Thursday 14 November 2013 at 10:32:06, Olivier Nicole wrote: > > I just want to know, Is it possible to block the "exe" file with > > attached zip/tar file. > You may consider using amavisd. Or MailScanner.

Re: Block "exe" in attachment.

2013-11-14 Thread Sanesecurity
David F. Skoll wrote > In my experience, ClamAV has become completely useless as a practical > way to stop viruses. The viruses encrypt and mutate themselves much > too quickly for ClamAV to keep up. I believe many commercial virus > scanners are in the same boat. So we just block executables, w

Re: Block "exe" in attachment.

2013-11-14 Thread Axb
On 11/14/2013 04:49 PM, Henrik K wrote: On Thu, Nov 14, 2013 at 10:37:12AM -0500, Kevin A. McGrail wrote: On 11/14/2013 8:57 AM, David F. Skoll wrote: Some statistics: On our main scanning cluster on 2013-11-13, we blocked 176,668 messages with EXE files in zip files. ClamAV only detected 4,610

Re: Block "exe" in attachment.

2013-11-14 Thread Henrik K
On Thu, Nov 14, 2013 at 10:37:12AM -0500, Kevin A. McGrail wrote: > On 11/14/2013 8:57 AM, David F. Skoll wrote: > >Some statistics: On our main scanning cluster on 2013-11-13, we > >blocked 176,668 messages with EXE files in zip files. ClamAV only > >detected 4,610 viruses. Regards, David. > Conti

Re: Heads up, yahoo server on some blacklists!

2013-11-14 Thread Ted Mittelstaedt
On 11/13/2013 5:51 PM, Noel Butler wrote: On 14/11/2013 11:14, Ted Mittelstaedt wrote: On 11/12/2013 1:39 PM, Noel Butler wrote: On 13/11/2013 04:38, jpff wrote: Perhaps on account of all the spam coming out of yahoo? I see far more trash coming out of gmail, yet they never seem to list the

Re: Block "exe" in attachment.

2013-11-14 Thread Kevin A. McGrail
On 11/14/2013 8:57 AM, David F. Skoll wrote: Some statistics: On our main scanning cluster on 2013-11-13, we blocked 176,668 messages with EXE files in zip files. ClamAV only detected 4,610 viruses. Regards, David. Continuing that vein, statistically, in the past 60 days, on one server we bloc

Re: Block "exe" in attachment.

2013-11-14 Thread David F. Skoll
On Thu, 14 Nov 2013 15:16:13 +0530 Kamaldeep Singh wrote: > Is there any rule we can write so that we can blacklist the zip/tar > files which contains "exe" file. You most likely need to do it outside of SpamAssassin. I use MIMEDefang (naturally enough... I wrote it) and if an email has a zip

Re: Block "exe" in attachment.

2013-11-14 Thread Sanesecurity
Kamaldeep Singh wrote > We are using SpamAssassin of version 3.3.1 running on Perl version 5.10.1. > > I just want to know, Is it possible to block the "exe" file with > attached zip/tar file. If you are using ClamAV you can add-on Third-Party Sanesecurity databases: Foxhole databases (differen

Re: Block "exe" in attachment.

2013-11-14 Thread Matus UHLAR - fantomas
On Thursday 14 November 2013 03:02 PM, Olivier Nicole wrote: SpamAssassin does not block anything. It could eventually mark that some attachment is an exe file, but that's all. On 14.11.13 15:16, Kamaldeep Singh wrote: Thanks for information. But I have written one rule to block exe file. Like

Re: Block "exe" in attachment.

2013-11-14 Thread Bernd Petrovitsch
Hi all! On Don, 2013-11-14 at 10:46 +0100, Robert Schetterer wrote: > Am 14.11.2013 10:43, schrieb Axb: > > On 11/14/2013 10:38 AM, Antony Stone wrote: > >> On Thursday 14 November 2013 at 10:32:06, Olivier Nicole wrote: [...] > I just want to know, Is it possible to block the "exe" file > >>

Re: Block "exe" in attachment.

2013-11-14 Thread Robert Schetterer
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Am 14.11.2013 10:43, schrieb Axb: > On 11/14/2013 10:38 AM, Antony Stone wrote: >> On Thursday 14 November 2013 at 10:32:06, Olivier Nicole wrote: >> >>> Hi, >>> We are using SpamAssassin of version 3.3.1 running on Perl version 5.10.1. >

Re: Block "exe" in attachment.

2013-11-14 Thread Kamaldeep Singh
Hi Olivier, Thanks for information. But I have written one rule to block exe file. Like if someone sends an email with attached exe file. It won't send. It's display an error like "this attached file is blacklisted". Is there any rule we can wr

Re: Block "exe" in attachment.

2013-11-14 Thread Axb
On 11/14/2013 10:38 AM, Antony Stone wrote: On Thursday 14 November 2013 at 10:32:06, Olivier Nicole wrote: Hi, We are using SpamAssassin of version 3.3.1 running on Perl version 5.10.1. I just want to know, Is it possible to block the "exe" file with attached zip/tar file. SpamAssassin do

Re: Block "exe" in attachment.

2013-11-14 Thread Antony Stone
On Thursday 14 November 2013 at 10:32:06, Olivier Nicole wrote: > Hi, > > > We are using SpamAssassin of version 3.3.1 running on Perl version > > 5.10.1. > > > > I just want to know, Is it possible to block the "exe" file with > > attached zip/tar file. > > SpamAssassin does not block anything

Re: Block "exe" in attachment.

2013-11-14 Thread Olivier Nicole
Hi, > We are using SpamAssassin of version 3.3.1 running on Perl version 5.10.1. > > I just want to know, Is it possible to block the "exe" file with > attached zip/tar file. SpamAssassin does not block anything. It could eventually mark that some attachment is an exe file, but that's all. You

Block "exe" in attachment.

2013-11-14 Thread Kamaldeep Singh
Hi, We are using SpamAssassin of version 3.3.1 running on Perl version 5.10.1. I just want to know, Is it possible to block the "exe" file with attached zip/tar file. -- Regards Kamaldeep Singh B.E. (C.S.E) Red Hat Certif