[clamav-users] performance degradation of clamscan

2019-07-09 Thread Slarty Bartfast via clamav-users
> On Mon, 8 Jul 2019 10:47:18 -0500 > "J.R. via clamav-users" wrote: > > One way you *could* get an older .cvd file is to extract it from the > relevant ClamAV package available on many different linux distro's. Be > sure to disable freshclam though (obviously). Thanks for the suggestion; I was a

Re: [clamav-users] performance degradation of clamscan

2019-07-09 Thread Matus UHLAR - fantomas
On Mon, 8 Jul 2019 10:47:18 -0500 "J.R. via clamav-users" wrote: One way you *could* get an older .cvd file is to extract it from the relevant ClamAV package available on many different linux distro's. Be sure to disable freshclam though (obviously). Thanks for the suggestion; I was able to g

[clamav-users] Yara rules in ClamAV

2019-07-09 Thread Munaf Ahmed (ahmedm) via clamav-users
Hi, Is there any user document that shows how to load YARA rules in ClamAV ? Appreciate any help/pointer. TIA Munaf ___ clamav-users mailing list clamav-users@lists.clamav.net https://lists.clamav.net/mailman/listinfo/clamav-users Help us build a

Re: [clamav-users] Yara rules in ClamAV

2019-07-09 Thread Graeme Fowler via clamav-users
> Is there any user document that shows how to load YARA rules in ClamAV ? https://www.clamav.net/documents/using-yara-rules-in-clamav ___ clamav-users mailing list clamav-users@lists.clamav.net https://lists.clamav.net/mailman/listinfo/clamav-users

Re: [clamav-users] performance degradation of clamscan

2019-07-09 Thread Paul Kosinski via clamav-users
I have uploaded 4 CVDs and 2 CLDs to: http://iment.com/paste-bin/ClamAV-Sigs/ The names include the dates (and times) they were downloaded. The reason for CVD vs CLD is that Cloudflare made running our own "mirror" impractical. The CVD version delivered by Cloudflare's "BOS" Anycast server was

Re: [clamav-users] performance degradation of clamscan

2019-07-09 Thread Andrew Williams
Over the last few years, Talos has invested significant amounts of time and effort into improving the infrastructure we use to automate ClamAV signature creation and testing, and especially within the last 6-9 months, this has allowed us to push out signatures for known threats much faster than we

Re: [clamav-users] performance degradation of clamscan

2019-07-09 Thread Joel Esler (jesler) via clamav-users
This has been fixed for some time has it not? > On Jul 9, 2019, at 3:38 PM, Paul Kosinski via clamav-users > wrote: > > The CVD version delivered by Cloudflare's "BOS" > Anycast server was often behind the version advertised by the DNS TXT. smime.p7s Description: S/MIME cryptographic signat

Re: [clamav-users] performance degradation of clamscan

2019-07-09 Thread Slarty Bartfast via clamav-users
Thank you very much for the detailed replies. Paul, thanks for providing the old signatures. The .zip files seem to be throwing 500s though? Andrew, the details about the hashes and logical signatures make a lot of sense. >From looking again at a comparison between clamscan and the daemon, it do

Re: [clamav-users] performance degradation of clamscan

2019-07-09 Thread Paul Kosinski via clamav-users
Sorry about the HTTP 500 errors : the "zip" extension had been routed to a special CGI handler for another purpose (to intercept people who were downloading some big files over and over and over). I removed that special treatment from this directory. So it should work now. On Tue, 9 Jul 2019 23:1

Re: [clamav-users] performance degradation of clamscan

2019-07-09 Thread Paul Kosinski via clamav-users
I hadn't looked recently. After I gave up on running a local mirror and switched to CDIFFs, I also observed that signatures were usually updated only couple of times per day. So I reduced polling the DNS TXT record to only twice per hour and only running freshclam if the DNS TXT record suggested it

Re: [clamav-users] Yara rules in ClamAV

2019-07-09 Thread Al Varnell via clamav-users
Just place the file (with extension .yara) into the .../share/clamav database directory. Sent from my iPad -Al- On Jul 9, 2019, at 08:54, Munaf Ahmed (ahmedm) via clamav-users wrote: > Hi, > > Is there any user document that shows how to load YARA rules in ClamAV ? > > Appreciate any help/p

Re: [clamav-users] performance degradation of clamscan

2019-07-09 Thread Joel Esler (jesler) via clamav-users
You are right. They can change. But it’s dependent on your location. So as long as you don’t move your position on earth ;), you should be fine. Unless cloudflare drastically changes things. Sent from my  iPhone > On Jul 9, 2019, at 18:58, Paul Kosinski wrote: > > I hadn't looked recen

[clamav-users] Scan for dummy file with /dev/zero takes longer

2019-07-09 Thread Taizo ITO
Hello, I'm trying to get some stats on how long a scan takes by different size, but I encountered an unexpected behavior when scanning a file generated in a specific way. A scan for a dummy file filled with /dev/zero takes much longer than with /dev/urandom. I think the processing time should be t