Hello Andrew,

I use clamav provided by debian 8.11 :
dpkg -l|grep clam
ii  clamav                                 0.100.2+dfsg-0+deb8u1                      amd64        anti-virus utility for Unix - command-line interface
ii  clamav-base                            0.100.2+dfsg-0+deb8u1                      all          anti-virus utility for Unix - base package
ii  clamav-daemon                          0.100.2+dfsg-0+deb8u1                      amd64        anti-virus utility for Unix - scanner daemon
ii  clamav-freshclam                       0.100.2+dfsg-0+deb8u1                      amd64        anti-virus utility for Unix - virus database update utility
ii  clamdscan                              0.100.2+dfsg-0+deb8u1                      amd64        anti-virus utility for Unix - scanner client
ii  libclamav7                             0.100.2+dfsg-0+deb8u1                      amd64        anti-virus utility for Unix - libraryrt
ii  libclamunrar7                          0.99-0+deb8u3                              amd64        anti-virus utility for Unix - unrar support

How to know if it is compiled with yara support ? clamscan --debug does not seem to provide the information.

On https://buildd.debian.org/status/package.php?p=clamav&suite=jessie-security, there is "no logs" for amd64
o.O
Other log files seems to show Debian compiles with yara support.
For example : https://buildd.debian.org/status/fetch.php?pkg=clamav&arch=i386&ver=0.100.2%2Bdfsg-0%2Bdeb8u1&stamp=1540398955&raw=0

Le 06/02/2019 à 17:32, Andrew Williams a écrit :
Hey Arnaud,

I recently noticed a bug that causes .pwdb files to not be loaded from the db directory when ClamAV is compiled without Yara support.  Is your ClamAV built with Yara support, and if not, can you try compiling with Yara support and see whether this fixes the issue for you?  This issue will be fixed in an upcoming release.

Thanks,

-Andrew
Research Engineer
Malware Research Team

On Wed, Feb 6, 2019 at 11:16 AM Arnaud Jacques <webmaster@securiteinfo.com> wrote:
Hello,

It seems .pwdb files does not work since version 0.100.2 (may be since
0.100.0).
It has this format :

cat passwords.pwdb
ZipPasswordInfected;Engine:51-255;0;infected

This file is in ClamAV databases directory (/var/lib/clamav/) and ClamAV
does not detect malwares when Zip is protected by the "infected"
password. Manually unzipped, ClamAV is enable to detect the malware.

Is the format of .pwdb files has changed since 0.100.x ?
Is it still supported on recent ClamAV version ?

--
Cordialement / Best regards,

Arnaud Jacques
Gérant de SecuriteInfo.com

Téléphone : +33-(0)3.44.39.76.46
E-mail : aj@securiteinfo.com
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Help us build a comprehensive ClamAV guide:
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-- 
Cordialement / Best regards,

Arnaud Jacques
Gérant de SecuriteInfo.com

Téléphone : +33-(0)3.44.39.76.46
E-mail : aj@securiteinfo.com
Site web : https://www.securiteinfo.com
Facebook : https://www.facebook.com/pages/SecuriteInfocom/132872523492286
Twitter : @SecuriteInfoCom

Securiteinfo.com
La Sécurité Informatique - La Sécurité des Informations.
266, rue de Villers
60123 Bonneuil en Valois