Re: SA cannot block messages with attached zip

2016-07-13 Thread John Hardin
On Wed, 13 Jul 2016, Chip M. wrote: P.P.S. Today's new malware morph is a single zipped javascript file, where the script filename ends with "..wsf". Is the double dot just a mistake, or does that confuse anything? That's very likely an attempt to bypass "double-extension" filter checks that

Re: SA cannot block messages with attached zip

2016-07-13 Thread Chip M.
On Wed, 8 Jun 2016 17:23:59 -0400 Alex wrote: >Meanwhile, there is RTF spam that's circulating which is >currently bypassing the sanesecurity sigs. I've just submitted a >sample to Steve, but the db hasn't yet been updated. Here's a >sample: > >http://pastebin.com/ALsSAmwa Alex, thanks for the spa

Re: SA cannot block messages with attached zip

2016-06-08 Thread Benny Pedersen
On 2016-06-08 23:23, Alex wrote: http://pastebin.com/ALsSAmwa this sample can be reported to dnswl

Re: SA cannot block messages with attached zip

2016-06-08 Thread Alex
Meanwhile, there is RTF spam that's circulating which is currently bypassing the sanesecurity sigs. I've just submitted a sample to Steve, but the db hasn't yet been updated. Here's a sample: http://pastebin.com/ALsSAmwa The pattern to temporarily stop them involves a meta with __DOC_ATTACH_MT an

Re: SA cannot block messages with attached zip

2016-06-08 Thread Paul Stead
On 08/06/16 21:39, Paul Stead wrote: BlockAnyAndAllJS:*:*:\.[Jj][Ss]$:*:*:*:*:*:* Should point out that this may be prone to false positives. The Sane sigs are scored low, med, high FP risk and can be installed as such. -- Paul Stead Systems Engineer Zen Internet

Re: SA cannot block messages with attached zip

2016-06-08 Thread Paul Stead
On 08/06/16 20:59, Chip M. wrote: I was looking more closely at the Foxhole page, and it SOUNDS (to me) like they do _NOT_ block on ".js" file extension, whereas you/Dianne do: More relevant for the ClamAV/Sanesecurity list, hope this isn't looked down upon. I'm not sure if Steve is on the lis

Re: SA cannot block messages with attached zip

2016-06-08 Thread jimimaseye
.ocx > .tsp > I verified that all of those actually occur and are executable > on a Windows7 machine. -- View this message in context: http://spamassassin.1065346.n5.nabble.com/SA-cannot-block-messages-with-attached-zip-tp120785p121205.html Sent from the SpamAssassin - Users mailing list archive at Nabble.com.

Re: SA cannot block messages with attached zip

2016-06-08 Thread Chip M.
At 04:07 AM 5/20/2016, Dianne/RoaringPenguin wrote: >We list the contents of attached archives >(using "lsar") and have filename-extension rules that block .js >inside .zip files. While this can lead to some FPs, which we handle >with selective whitelisting, it's very effective at catching the

Re: SA cannot block messages with attached zip

2016-05-23 Thread Emin Akbulut
I've switched from AVG File Server to ClamWin + Sanesecurity, Now It seems ok, I have to examine for false negatives, maybe I need to exclude some signatures. Here are the results for 9 hours of Sanesecurity: Passed msg: 912 Viruses detected: 446 Spam msg: 5523 AVG File Server was really really b

Re: SA cannot block messages with attached zip

2016-05-23 Thread Bill Cole
On 21 May 2016, at 12:31, Dianne Skoll wrote: On Sat, 21 May 2016 12:28:48 -0400 "Bill Cole" wrote: On 20 May 2016, at 7:07, Dianne Skoll wrote: Sorry for the non-easy answer. Doing it properly requires a non-trivial amount of coding. I do not recall doing any real coding at all to get

Re: SA cannot block messages with attached zip

2016-05-23 Thread Reindl Harald
and BTW a mail from a machine listed at "pbl.spamhaus.org" (https://www.spamhaus.org/pbl/) should not make it to your content filters at all - so it appears that most people in this thread which face a high number of this problems don't setup their MTA proper no way that the sample mail make

Re: SA cannot block messages with attached zip

2016-05-23 Thread Reindl Harald
Am 23.05.2016 um 15:24 schrieb Emin Akbulut: AVG or ClamAV or any other antivirus couldn't delete all these attached viruses; VirusTotal says. My mail server checks blacklists & SURBL servers. Anyway we might receive mails from unlisted IPs like zombie PCs. In the message with Zip attachment

Re: SA cannot block messages with attached zip

2016-05-23 Thread Emin Akbulut
AVG or ClamAV or any other antivirus couldn't delete all these attached viruses; VirusTotal says. My mail server checks blacklists & SURBL servers. Anyway we might receive mails from unlisted IPs like zombie PCs. In the message with Zip attachment includes javascipt files contains no url in the b

Re: SA cannot block messages with attached zip

2016-05-23 Thread Paul Stead
On 22/05/16 02:10, @lbutlr wrote: Sure, there are 4 foxhole ones, but there are dozens on the main page there. The following code allows for easy config and download of the signatures you want. https://github.com/extremeshok/clamav-unofficial-sigs By default this will download and test the l

Re: SA cannot block messages with attached zip

2016-05-21 Thread @lbutlr
On May 21, 2016, at 1:18 PM, Reindl Harald wrote: > Am 21.05.2016 um 21:16 schrieb @lbutlr: >> On May 20, 2016, at 6:11 AM, Reindl Harald wrote: >>> no it is not, look at the sanesecurity foxhole signatures >>> http://sanesecurity.com/usage/signatures/ >> >> I have looked at those, but there are

Re: SA cannot block messages with attached zip

2016-05-21 Thread Reindl Harald
Am 21.05.2016 um 21:16 schrieb @lbutlr: On May 20, 2016, at 6:11 AM, Reindl Harald wrote: no it is not, look at the sanesecurity foxhole signatures http://sanesecurity.com/usage/signatures/ I have looked at those, but there are so many it’s kind of overwhelming on where to start 4 is man

Re: SA cannot block messages with attached zip

2016-05-21 Thread @lbutlr
On May 20, 2016, at 6:11 AM, Reindl Harald wrote: > no it is not, look at the sanesecurity foxhole signatures > http://sanesecurity.com/usage/signatures/ I have looked at those, but there are so many it’s kind of overwhelming on where to start. -- NO. I CANNOT BE BIDDEN. I CANNOT BE FORCED. I

Re: SA cannot block messages with attached zip

2016-05-21 Thread Dianne Skoll
On Sat, 21 May 2016 12:28:48 -0400 "Bill Cole" wrote: > On 20 May 2016, at 7:07, Dianne Skoll wrote: > > Sorry for the non-easy answer. Doing it properly requires a > > non-trivial amount of coding. > I do not recall doing any real coding at all to get a steady trickle > of log messages like t

Re: SA cannot block messages with attached zip

2016-05-21 Thread Bill Cole
On 20 May 2016, at 7:07, Dianne Skoll wrote: Sorry for the non-easy answer. Doing it properly requires a non-trivial amount of coding. I do not recall doing any real coding at all to get a steady trickle of log messages like this (regarding mail NOT from Amazon): May 4 01:30:05 bigsky mi

Re: SA cannot block messages with attached zip

2016-05-20 Thread Dianne Skoll
On Fri, 20 May 2016 17:47:09 -0500 (CDT) David B Funk wrote: > > We do it the hard way. We list the contents of attached archives > > (using "lsar") and have filename-extension rules that block .js > > inside .zip files. While this can lead to some FPs, which we handle > > with selective whitel

Re: SA cannot block messages with attached zip

2016-05-20 Thread David B Funk
On Fri, 20 May 2016, Dianne Skoll wrote: On Fri, 20 May 2016 09:31:48 +0300 Emin Akbulut wrote: What do you suggest to fight these spams? ClamAV is basically useless. We do it the hard way. We list the contents of attached archives (using "lsar") and have filename-extension rules that blo

Re: SA cannot block messages with attached zip

2016-05-20 Thread Vincent Fox
__ From: Rick Macdougall Sent: Friday, May 20, 2016 7:50:46 AM To: users@spamassassin.apache.org Subject: Re: SA cannot block messages with attached zip On 2016-05-20 10:36 AM, Paul Stead wrote: > Second, the foxhole_js database is what you're looking for > > Paul > > On

Re: SA cannot block messages with attached zip

2016-05-20 Thread Reindl Harald
Am 20.05.2016 um 17:29 schrieb Chip M.: P.S. As of about 1700 UTC yesterday, I'm seeing significant volume of zipped macro-encrusted "doc" files /etc/clamd.d/scan.conf: ScanOLE2 yes OLE2BlockMacros yes signature.asc Description: OpenPGP digital signature

Re: SA cannot block messages with attached zip

2016-05-20 Thread Chip M.
At 04:07 AM 5/20/2016, RoaringPenguin wrote: >filename-extension rules that block .js >inside .zip files. +1 We also block these scripting related Windows extensions: .hta .jse .vbs .wsf Those were originally "pre-emptive", however I've now seen both ".hta" and ".

Re: SA cannot block messages with attached zip

2016-05-20 Thread Reindl Harald
Am 20.05.2016 um 17:11 schrieb Rick Macdougall: On 2016-05-20 11:00 AM, Reindl Harald wrote: Am 20.05.2016 um 16:50 schrieb Rick Macdougall: On 2016-05-20 10:36 AM, Paul Stead wrote: Second, the foxhole_js database is what you're looking for Paul On 20/05/16 13:11, Reindl Harald wrote:

Re: SA cannot block messages with attached zip

2016-05-20 Thread Rick Macdougall
On 2016-05-20 11:00 AM, Reindl Harald wrote: Am 20.05.2016 um 16:50 schrieb Rick Macdougall: On 2016-05-20 10:36 AM, Paul Stead wrote: Second, the foxhole_js database is what you're looking for Paul On 20/05/16 13:11, Reindl Harald wrote: Am 20.05.2016 um 13:07 schrieb Dianne Skoll: On

Re: SA cannot block messages with attached zip

2016-05-20 Thread Dianne Skoll
On Fri, 20 May 2016 15:00:55 + David Jones wrote: > >From: Dianne Skoll > >ClamAV is basically useless. > ClamAV helps a little with the unofficial sigatures. The operative word here is "a little". I find that the unofficial signatures that are good at actually catching bad stuff have extr

Re: SA cannot block messages with attached zip

2016-05-20 Thread David Jones
>From: Dianne Skoll >Sent: Friday, May 20, 2016 6:07 AM >To: users@spamassassin.apache.org >Subject: Re: SA cannot block messages with attached zip >On Fri, 20 May 2016 09:31:48 +0300 >Emin Akbulut wrote: >> What do you suggest to fight these spams? >ClamAV is basic

Re: SA cannot block messages with attached zip

2016-05-20 Thread Reindl Harald
Am 20.05.2016 um 16:50 schrieb Rick Macdougall: On 2016-05-20 10:36 AM, Paul Stead wrote: Second, the foxhole_js database is what you're looking for Paul On 20/05/16 13:11, Reindl Harald wrote: Am 20.05.2016 um 13:07 schrieb Dianne Skoll: On Fri, 20 May 2016 09:31:48 +0300 Emin Akbulut

Re: SA cannot block messages with attached zip

2016-05-20 Thread Rick Macdougall
On 2016-05-20 10:36 AM, Paul Stead wrote: Second, the foxhole_js database is what you're looking for Paul On 20/05/16 13:11, Reindl Harald wrote: Am 20.05.2016 um 13:07 schrieb Dianne Skoll: On Fri, 20 May 2016 09:31:48 +0300 Emin Akbulut wrote: What do you suggest to fight these spams?

Re: SA cannot block messages with attached zip

2016-05-20 Thread Paul Stead
Second, the foxhole_js database is what you're looking for Paul On 20/05/16 13:11, Reindl Harald wrote: Am 20.05.2016 um 13:07 schrieb Dianne Skoll: On Fri, 20 May 2016 09:31:48 +0300 Emin Akbulut wrote: What do you suggest to fight these spams? ClamAV is basically useless no it is no

Re: SA cannot block messages with attached zip

2016-05-20 Thread Reindl Harald
Am 20.05.2016 um 16:20 schrieb Kris Deugau: Emin Akbulut wrote: I tried to train SA with tons of spam messages which contains zip file (includes .js) The max spam score was lesser than 5 so I did set 4 to delete messsages. Then same kind of spam messages appear with the score of lesser than 2

Re: SA cannot block messages with attached zip

2016-05-20 Thread Kris Deugau
Emin Akbulut wrote: > I tried to train SA with tons of spam messages which contains zip file > (includes .js) > The max spam score was lesser than 5 so I did set 4 to delete messsages. > > Then same kind of spam messages appear with the score of lesser than 2. > > In short; training the SA seems

Re: SA cannot block messages with attached zip

2016-05-20 Thread Rejaine Monteiro
I hitched a ride in this thread and I appreciate the tip of the foxhole and clamav! I was also having problems here! solved now. On 20-05-2016 09:11, Reindl Harald wrote: Am 20.05.2016 um 13:07 schrieb Dianne Skoll: On Fri, 20 May 2016 09:31:48 +0300 Emin Akbulut wrote: What do you sugges

Re: SA cannot block messages with attached zip

2016-05-20 Thread Reindl Harald
Am 20.05.2016 um 13:07 schrieb Dianne Skoll: On Fri, 20 May 2016 09:31:48 +0300 Emin Akbulut wrote: What do you suggest to fight these spams? ClamAV is basically useless no it is not, look at the sanesecurity foxhole signatures http://sanesecurity.com/usage/signatures/ signature.asc

Re: SA cannot block messages with attached zip

2016-05-20 Thread Dianne Skoll
On Fri, 20 May 2016 09:31:48 +0300 Emin Akbulut wrote: > What do you suggest to fight these spams? ClamAV is basically useless. We do it the hard way. We list the contents of attached archives (using "lsar") and have filename-extension rules that block .js inside .zip files. While this can le

Re: SA cannot block messages with attached zip

2016-05-20 Thread Reindl Harald
Am 20.05.2016 um 11:40 schrieb @lbutlr: On May 20, 2016, at 2:46 AM, Reindl Harald wrote: postscreen_dnsbl_action = enforce postscreen_greet_action = enforce [long list] What do you set postscreen_dnsbl_threshold to? 8 signature.asc Description: OpenPGP digital signature

Re: SA cannot block messages with attached zip

2016-05-20 Thread @lbutlr
On May 20, 2016, at 2:46 AM, Reindl Harald wrote: > postscreen_dnsbl_action = enforce > postscreen_greet_action = enforce [long list] What do you set postscreen_dnsbl_threshold to? -- "Give a man a fire and he's warm for a day, but set fire to him an he's warm for the rest of his life."

Re: SA cannot block messages with attached zip

2016-05-20 Thread Reindl Harald
Am 20.05.2016 um 10:32 schrieb Reindl Harald: Am 20.05.2016 um 08:31 schrieb Emin Akbulut: I tried to train SA with tons of spam messages which contains zip file (includes .js) The max spam score was lesser than 5 so I did set 4 to delete messsages. Then same kind of spam messages appear with

Re: SA cannot block messages with attached zip

2016-05-20 Thread Reindl Harald
Am 20.05.2016 um 08:31 schrieb Emin Akbulut: I tried to train SA with tons of spam messages which contains zip file (includes .js) The max spam score was lesser than 5 so I did set 4 to delete messsages. Then same kind of spam messages appear with the score of lesser than 2. In short; trainin

SA cannot block messages with attached zip

2016-05-19 Thread Emin Akbulut
I tried to train SA with tons of spam messages which contains zip file (includes .js) The max spam score was lesser than 5 so I did set 4 to delete messsages. Then same kind of spam messages appear with the score of lesser than 2. In short; training the SA seems not helpful. What do you suggest