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ClamAV is an open source (GPLv2) anti-virus toolkit.
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Initial revision git-svn: trunk@4
22 years ago
Note: This README/NEWS file refers to the source tarball. Some things described
here may not be available in the binary packages.
--
Big update git-svn: trunk@88
22 years ago
0.65
----
-) clamd:
+ fixed a race condition in the database reloading code (random hangs
under high load)
+ fixed PidFile permissions (Magnus Ekdahl, bug reported by Tomasz Papszun)
+ fixed LogFile permissions (Magnus Ekdahl)
+ new directive ScanRAR (bacause RAR support is now disabled by default)
+ new directive VirusEvent
+ new directive FixStaleSocket (Thomas Lamy and Mark Mielke)
+ new directive TCPAddr (Bernard Quatermass, fixed by Damien Curtain)
+ new directive Debug
-) clamav-milter:
+
+ new --force-scan flag
+ new -P and -q flags by Nicholas M. Kirsch
-) libclamav:
+ multiple mbox fixes (thanks to Rene Bellora, Bernd Kuhls, Thomas Lamy,
Tomasz Papszun,
+ memory leak fixes (Thomas Lamy)
+ support for a new database container format (CVD) with support for
digital signatures,
+ new scan option CL_DISABLERAR (disables built-in RAR unpacker)
-) freshclam:
+ fixed --on-error-execute behaviour (David Woakes)
+ new option --user (-u) USER - run as USER instead of the default user.
Patch by Damien Curtain.
-) documentation:
+ new Spanish documentation on ClamAV + Sendmail integration by
Erick Ivaan Lopez Carreon
Initial revision git-svn: trunk@4
22 years ago
0.60
----
Hello again...
This is a new, (very?) stable release of Clam AntiVirus. 0.60 was developed
and stabilized for over seven months and many people had contributed to the
final release. This version introduces many enhancements and a new program:
clamav-milter written by ClamAV developer Nigel Horne. This is a mail scanner
for Sendmail/milter written entirely in C, which uses clamd for virus scanning.
Clamav-milter and clamd duet is a powerful solution for systems where high
performance is required. Please check clamdoc for more detail.
Many people get confused with ClamAV database status because of
the OpenAntiVirus update information at:
http://openantivirus.org/latest.php
(last update at 17 October, 2002). The ClamAV virus database contains
the OAV database (with some signatures fixed or removed) but we
develop it independently of the OAV project. Our database is updated
frequently (on average 4-5 times a week). You can help (or join) us -
will find some basic but useful instructions at
http://clamav.elektrapro.com/doc/signatures.pdf
News from ClamAV world:
-) New email address for virus submitting: virus@clamav.elektrapro.com
You don't need to encrypt a virus sample, but if your system doesn't allow
you to send infected files just put it into an encrypted zip archive
(password: virus)
Special thanks to Nicholas Chua, Diego D'Ambra, Hrvoje Habjanic, Nigel Kukard
and Chris van Meerendonk for a big number of samples submitted.
-) New mailing list: virusdb@clamav.elektrapro.com
After each update an email with subject "[clamav-virusdb] Update" and a list
of viruses added is sent to it. You can set up a procmail rule for freshclam
to react on such a mails (and update the database just after an update).
-) New official mirrors:
+ clamav.ozforces.com: database mirror updated manually (thanks to
Andrew <andrew@ozforces.com>)
+ clamav.essentkabel.com: full (automatic) mirror of clamav.elektrapro.com
(thanks to Chris van Meerendonk <cvm@castel.nl>)
+ clamav.linux-sxs.org: database mirror - rsync from clamav.ozforces.com
(thanks to Douglas J Hunley <doug@hunley.homeip.net>)
Freshclam will automatically use them when the main server is not
accessible.
-) Official port in FreeBSD available ! (maintained by Masahiro Teramoto
<markun@onohara.to>)
-) Unofficial port for OpenBSD is available at:
http://www.activeintra.net/openbsd/article.php?id=5
(maintained by Flinn Mueller <flinn@activeintra.net>)
-) there are many new programs that use ClamAV, eg. mod_clamav (Apache
virus scanning filter), clamdmail or Sagator. You will find more
info in clamdoc.
Changes:
-) libclamav:
+ fixed buffer overflow in unrarlib (patch by Robbert Kouprie
<robbert@exx.nl>)
+ various mbox code updates (fixed memory leak; added support for decoding
viruses sent in message bodies, detection of viruses that put their
payloads after the end of message marker (thanks to Stephen White
<stephen@earth.li> for the bug report and useful CGI tools);
+ zziplib updated to 0.10.81 (some problems with older version were reported
by Martin Schitter)
+ direct scanning of mbox/maildir files (new directive CL_MAIL)
+ file scanner optimization (patch by Hendrik Muhs
<Hendrik.Muhs@student.uni-magdeburg.de>)
+ bzip2 support
+ faster detection of malformed Zip archives (eg. 'Zip of Death'), they are
reported as a viruses
+ fixed strcasecmp() compile problem in zziplib on Free/NetBSD and others
-) clamd:
+ fixed descriptor leak in directory scanner - it was causing random
clamd crashes and locks, especially on highly loaded servers. Reported
by Kristof Petr <Kristof.P@fce.vutbr.cz>.
+ fixed crash with archive scanning on BSD (increased thread stack size)
(Nigel Horne)
+ fixed CONTSCAN command (used by clamdscan) - it had archive support
disabled (hardcoded)
+ fixed SelfCheck option (there was a logic bug, and the option was
disabled) it now checks a databases time stamps and reloads them
if needed.
+ fixed possible writing to undefined descriptors (bug found by
Brian May <bam@debian.org>)
+ new STREAM command (scanning data on socket) and directives:
StreamSaveToDisk (save stream to disk to allow scanning within archives),
StreamMaxLength. This option allows scanning data on socket (might be
sent from another host), currently only clamav-milter uses this.
+ new ScanMail directive for scanning into mbox/Maildir files
+ new directive: ArchiveLimitMemoryUsage (limit memory usage with bzip2)
+ new directive: AllowSupplementaryGroups (feature requested by Exiscan
users)
+ syslog support (LogSyslog) (patch by Hrvoje Habjanic
<hrvoje.habjanic@zg.hinet.hr>)
+ fixed parser segfault with extra space between option and argument
in config file (Magnus Ekdahl <magnus@debian.org>)
-) clamscan:
+ fixed --remove option (didn't work when the file was scanned with an
internal unpacker) (patch by Damien Curtain <damien@pagefault.org>)
+ --move option for moving infected files into a specified directory
(by Damien Curtain <damien@pagefault.org>)
+ --mbox enables a direct support for mbox files
(ex. clamscan --mbox /var/spool/mail)
+ fixed --log (-l) option
+ fixed -i option (patch by Magnus Ekdahl <magnus@debian.org>)
+ enabled default archive limits (max-files = 500, max-size = 10M,
max-recursion = 5)
+ use arj instead of non-free unarj (patch by Magnus Ekdahl)
+ use unzoo instead of non-free zoo (patch by Magnus Ekdahl)
+ removed thread support
freshclam:
+ mirror support (implemented by Damien Curtain <damien@pagefault.org>)
+ --proxy-user: proxy authorization support (implemented by Gernot Tenchio
<g.tenchio@telco-tech.de>)
+ new options --on-error-execute, --on-update-execute
(ex. freshclam -d -c 6 --on-error-execute "sendsms 23332243 Can't
update virus database"). Idea by Douglas J Hunley <doug@hunley.homeip.net>
configure:
+ --disable-cr (don't link with C reentrant library (needed on some newer
versions of OpenBSD))
-) Enhanced AIX (thanks to Mike Loewen <mloewen@sturgeon.cac.psu.edu>) and
Tru64 support (thanks to Christophe Varoqui <ext.devoteam.varoqui@sncf.fr>)
-) documentation:
+ included how-to in Portugese by Alexandre de Jesus Marcolino
+ clamdoc.pdf and system manual updates
Many thanks to Luca 'NERvOus' Gibelli from ElektraPro for his support,
to Ken McKittrick from USA DataNet for a fully accessible FreeBSD box and
to mailing list subscribers for a constructive discussions.
--
Tomasz Kojm
June 21, 2003
0.54
----
Many major changes this time...
-) libclamav:
+ fixed segfault with some strange zip archives (there is a bug in zziplib,
libclamav contains a work around for it) (the problem was reported by
Oliver Paukstadt <pstadt@stud.fh-heilbronn.de>)
+ engine improvements (better support for a detection of new viruses,
limited memory usage (consumes ~ 5 Mb now))
+ mbox code updated and moved into the library: fixed core dump when an
embedded message includes a mime header with the line Content-Type:
without specifying the type of content, fixed (theoretical) memory leak,
support for multipart/report messages, fixed bug causing some formats to
fail to scan) (Nigel)
-) clamd:
+ new commands: CONTSCAN (it doesn't stop scanning even when virus is
found), VERSION
+ disable logging of a unnecessary time stamps with LogTime when
LogVerbose isn't used (patch by Ed Phillips <ed@UDel.Edu>)
-) freshclam:
+ "Cache-Control: no-cache" enabled by default
+ Cygwin support fix
-) clamdscan:
+ initial version
-) all tools:
+ removed huge printf() in help() (there was a buffer overflow problem with
--help option under Windows and SCO Unix (reported by Wojciech Noworyta
<wnow@konarski.edu.pl> and Nigel respectively)
-) configure:
+ allow configuration of the clamav user and group with --with-user and
--with-group (patch by Patrick Bihan-Faou <patrick@mindstep.com>)
+ --enable-id-check - it uses the check procedure from Jason Englander
<jason@englanders.cc>, currently it will fail on systems with getent
which doesn't detect clamav group.
+ do not overwrite the existing config file
There are initial packages for Windows available at:
http://clamav.elektrapro.com/binary
--tk
0.53
----
This release has removed the limit for a file name length in clamscan. Some
viruses (eg. W32/Yaha.E) are using very long file names, and they were
ignored in mbox mode. Users of AMaViS-ng and other wrappers were not
vulnerable to this problem, because that programs don't use original
attachement file names.
-) clamscan:
+ removed limit for a file name length (thanks to Odhiambo Washington
<wash@wananchi.com> for the test files and extensive mbox testing)
+ mbox: adapted to the new changes, enabled thread support (Nigel),
re-enabled temporary directory removing.
0.52
----
This version contains a portability fixes - it should compile on OpenBSD,
MacOSX and NetBSD (support for them was broken in 0.51).
-) clamd: various fixes:
+ drop supplementary groups (suggested by Enrico Scholz
<enrico.scholz@informatik.tu-chemnitz.de>) (this has been implemented
in freshclam, too)
+ work-around for the segmentation fault at QUIT under FreeBSD
+ check timeouts when waiting for threads in RELOAD mode
+ SelfCheck - internal integrity check (by default every 1 hour)
+ fixed problem with directory scanning on non typical file systems
(bug reported by Jason Englander <jason@englanders.cc>)
+ clamd is a system command (clamd.1 -> clamd.8, /usr/local/bin ->
/usr/local/sbin) (Magnus Ekdahl)
-) clamscan:
+ mbox code updates (Nigel Horne) - it fixes some problems on *BSD
systems (see mailing lists archives for the details)
+ enable core dumping (Nigel Horne) [ with --enable-debug ]
-) freshclam:
+ applied http-proxy patch from http://bugs.debian.org/clamav (by
Martin Lesser <admin-debian@bettercom.de>)
+ when configured with --disable-cache, freshclam forces 'no-cache'
option in proxy servers (patch by Ant La Porte <ant@dvere.net>)
-) HPUX (10.20/11.0 tested) support (thanks to Joe Oaks <joe.oaks@hp.com>)
-) fixed support for SCO Unix and BeOS (Nigel Horne)
-) support/mboxscan: new version with SpamAssassin support (Nigel Horne)
-) re-included TrashScan 0.08 (by Trashware <trashware@gmx.de>) - the security
issue has been fixed.
-) included "Installing qmail-scanner, Clam Antivirus and SpamAssassin under
FreeBSD" how-to by Paul Hoadley and Eric Parsonage
0.51
----
OAV database is up to date ! There was a problem with signature parsing,
because some hex strings were upper case. Anyway, I still recommend you
freshclam for a database updating.
-) support for the genuine OAV database
-) limited memory usage (at the cost of speed, increase CL_MIN_LENGTH in
libclamav/clamav.h to make it faster, it's safe to set it on 3-4 for
the OAV database)
-) fixed compile problem on TurboLinux 6.5 (probably others, too), the bug
was reported by Henk Kuipers <henk@opensourcesolutions.nl>.
-) clamd: fixed THREXIT (thanks to Piotr Gackiewicz <gacek@intertele.pl>)
-) clamd: fixed serious bug with thread argument type
-) clamscan: mbox: don't scan empty attachments (Nigel Horne)
-) configure: --with-db1, --with-db2 (suggested by Magnus Ekdahl)
0.50
----
Here it is...
Clam AntiVirus 0.50 contains an anti-virus library - libclamav, a fully
multi-threaded daemon clamd(1) and a quite long list of changes. The
documentation was rewritten and you _should_ review it. By courtesy of
NERvOus <nervous@nervous.it> and ElektraPro, there are three mailing lists
available - you can subscribe via www at http://clamav.elektrapro.com/ml.
Please check the manual for more information.
New software:
-) libclamav with RAR, Zip and Gzip support built-in. The library is thread
safe and should be very secure, also. It uses UniquE RAR File
Library by Christian Scheurer and Johannes Winkelmann (RAR 2.0 support only)
and zziplib library by Guido Draheim and Tomi Ollila. Both of them are
included and slightly modified in the clamav sources. You need the zlib
library for the Zip/Gzip support, though. The API is described with
examples in the clamdoc.
-) clamd: a modern anti-virus daemon. It uses configuration file clamav.conf
described in the clamav.conf(5) manual. The program was written with
security as a goal.
-) clamuko: on-access scanning under Linux. It utilizes Dazuko kernel module
(GPL, http://dazuko.org) and is clamd-based.
New features / improvements:
-) enhanced scanner engine (better detection of some complex polymorphic
viruses)
-) clamscan: Nigel Horne <njh@bandsman.co.uk> has added the ability to scan
mail attachments in a filter. For example:
$ clamscan -i --mbox - < /var/spool/mail/john
/tmp/aa6b9fc06bc477ae/setup.exe: Worm/Klez.H FOUND
Nigel is the author of the whole mbox code in clamscan. Currently it only
works in a filter mode, but there are plans to move the code into the
libclamav and allow clamd using it. Please check support/mboxscan, also.
-) clamscan: support for including and excluding multiple patterns with
--include and --exclude (patch by Alejandro Dubrovsky
<s328940@student.uq.edu.au>).
Example: clamscan --include .exe --include .obj --include .scr /mnt/windows
-) clamscan: don't scan /proc files (Linux, st_dev comparing). No more
/proc/kcore related mails :))
-) clamscan: use libclamav's archive support by default (it's enabled by default
and may be disabled with --disable-archive) and switch to the external
unpackers (if specified) in the case of libclamav archive code error.
-) freshclam: proxy support (via $http_proxy variable and --http-proxy).
I started implementing proxy support some time ago, but never finished.
Nigel Horne did the great job and has finished the proxy support !
-) freshclam: --daemon-notify. freshclam will send the RELOAD command to the
daemon after database update (supports both tcp and local sockets, it reads
clamav.conf to determine the socket type).
-) freshclam: support for viruses.db2
Bug fixes:
-) freshclam: log 'Database updated' message (thanks to Jeffrey Moskot
<jef@math.miami.edu> for the bug report). It now prints a number
of signatures in a database, also.
-) clamscan: fixed compile problem on Solaris 8 and some other systems -
#include <signal.h> lack in others.c (thanks Mike Loewen
<mloewen@sturgeon.cac.psu.edu> for the bug report)
Documentation:
-) included Japanese documentation by Masaki Ogawa <proc@mac.com>
-) updated Spanish "Sendmail + Amavis + ClamAv - Como" by Erick I. Lopez
Carreon <elopezc@technitrade.com>
-) rewritten clamdoc, included clamdoc-html, removed PostScript version (.ps)
-) Clam-Mutant ;) logo update by Michal Hajduczenia <michalis@mat.uni.torun.pl>
-) new man pages: clamd(1), clamav.conf(5); others updated
!!!
Please don't use the oav-update script with this version. It doesn't
update viruses.db2 and supports OpenAntiVirus.org site only (the last
update of the OAV database was 1 July !). Nicholas Chua <nicholas@ncmbox.net>
has generated over 200 new signatures, ClamAV's database is also frequently
updated (expecially when new wild virus/worm appears, eg. W32/BugBear.A).
This software is still in developement (new software == new bugs), however
clamscan should be very stable. You shouldn't use clamd/clamuko (well, clamd is
stable, clamuko isn't) on production systems, yet. Please wait for 0.51 at
least ;). ClamAV 0.50 was tested on Linux and Solaris and should work fine.
There is a problem with clamd on FreeBSD (tested on my FreeBSD 5.0-CURRENT) -
the daemon crashes with Zip/Gzip files (disabling ScanArchive should help).
Enjoy !
--
Tomasz Kojm
October 5, 2002
0.24
----
-) fixed threads deadlock in a critical error situation (bug found by David
Sanchez <dsanchez@veloxia.com>)
-) fixed sigtool bug (negative seeking)
-) fixed potential clamscan segfault in the case of memory allocation error
-) unpacker execution error is no longer treated as critical - few programs
(eg. Qmail-Scanner, TrashScan) have clamscan command hardcoded with all
archive options turned on. Now, if unpacker can't be executed, raw file is
scanned and scan process is continued.
-) reverted to pthread.h detection
-) TrashScan 0.07 (Trashware <trashware@gmx.net>)
-) --exclude (regular expressions are not supported !)
[ex: clamscan --exclude="/proc/kcore" /], but please use it with care.
-) included html documentation
IMPORTANT NOTE:
~~~~~~~~~~~~~~~
You will probably have a problem with a default Qmail-Scanner (1.13 or newer)
installation. You need to increase qmail-smtpd softlimit or disable it. You
can force clamscan to use only half of the memory which it uses by default, too.
Please change the following line in the clamscan/matcher.h file:
#define MIN_LENGTH 5
to:
#define MIN_LENGTH 3
and recompile the program. Unhappily, scanning may be a little slower in some
cases, but it shouldn't be significant. Then you can safely set the qmail
softlimit to 8 MB. I want to thank Doug Monroe <doug@planetconnect.com> for
his contribution in the problem analysis.
---
New ClamAV version is in a heavy development. It has currently built-in
support for RAR, Zip, Gzip and tar. The daemon will support only built-in
compression/archive support. Snapshot will be available for a few days.
0.23
----
-) fixed compile problem on FreeBSD (thanks to Wieslaw Glod <wkg@x2.pl> and
Ken McKittrick <klmac@usadatanet.com>)
-) clamscan reads all .db files from data directory, so you can put your
own databases there and they won't be overwrited by the updaters. viruses.db
is still the main database file (if --database isn't used).
-) --deb (debian binary packages scanning) by Magnus Ekdahl <magnus@debian.org>
-) --remove option, but be careful with it !
-) new clam logo ;) (GPL) by Michal Hajduczenia <michalis@mat.uni.torun.pl>.
-) TrashScan 0.06 (by Trashware <trashware@gmx.net>) - a script for scanning
mail with procmail. I recommend it. (support/trashscan)
-) documentation updates
0.30 release will contain a daemon and an anti-virus library (with simple API),
so you can use it directly in your projects. I want to build in zip and rar
support, also.
There are binary packages for AIX available. Please check the documentation.
0.22
----
This release fixes bug with scanning archives in unaccessible directories with
*superuser* priviledges (after dropping priviledges scanner wasn't able to
access the archive, although the same archive was accessible), thanks
for Sergei Pronin <sp@finndesign.fi> for the problem description. Now all
archives unaccessible directly by the clamav user are copied (with a respect to
--max-space) to the temporary directory. All old filesystem tricks were removed.
Other fixes / improvements:
-) better error handling, new error codes
-) improved -i (--infected) option
-) removed --strange-unzip option
-) removed eicar test files and logos from the documentation due to the GPL
(thanks for Magnus Ekdahl <magnus@debian.org>), ClamAV-Test-Signature is
used instead
-) removed Qmail-Scanner patch, ClamAV is supported by Q-S 1.13 (thanks guys!)
-) code cleanups
0.21 Release
------------
It fixes following problems:
-) database downloading in freshclam/0.20
-) malformed amavis-perl patch from 0.20
-) clamscan problems with some unzip versions, please try --strange-unzip
option
ClamAV 0.21 source package contains initial support for NetBSD
(thanks to Marc Baudoin <babafou@babafou.eu.org>, Jean-Edouard BABIN
<Jeb@jeb.com.fr>), better support for Mac OS X (Masaki Ogawa <proc@mac.com>),
and clamdoc documentation corrected by Dennis Leeuw <dleeuw@made-it.com>.
0.20 Release
------------
The most important change in this release is a new, linear pattern matching
algorithm. You will find more informations about it in clamscan/matcher.c -
in the sources and in clamdoc. Summary (since 0.15):
New features:
-) fast pattern matching algorithm
-) sigtool utility, check `man sigtool` and clamdoc
-) Linux: threads autodetection on various architectures
(Magnus Ekdahl <magnus@debian.org>)
-) -i, --infected: clamscan prints only infected files
-) 'Data scanned' in summary, size in megabytes with 16 Kb precision
-) configure: --with-dbdir sets the database location
-) support/sigmake shell script by Dennis Leeuw <leeuw@stone-it.com>
-) Spanish "Sendmail+Amavis+ClamAv installation how-to" by
Erick I. Lopez Carreon <elopezc@technitrade.com>
Updates:
-) "Debian GNU/Linux Mail Server v. 0.2.0" by Dennis Leeuw <leeuw@stone-it.com>
-) qmail-scanner patch from Kazuhiko <kazuhiko@fdiary.net>
-) general documentation cleanups / updates
-) freshclam / Internet database location
Fixes:
-) threads autodetection on not-x86 Linux systems
-) gcc 3.x support (David Ford <david+cert@blue-labs.org>)
-) data type fix on Mac OS X (Peter N Lewis <peter@stairways.com.au>)
-) removed -w, --whole-file, now clamscan scans whole files by default
-w is still supported by internal getopt(), because it is used in
various patches
-) removed --one-virus, still supported by getopt(); removed 'Found viruses'
from summary, clamscan stops file scanning after first virus
-) fixed old problem with scanning stdin
-) removed amavisd-patch - strange problems have been reported
OpenAntiVirus Update is a great tool written by Matthew A. Grant
<grantma@anathoth.gen.nz> and it will be the primary updater for ClamAV
in the near future. In contrast to freshclam it has proxy support and many
specific features. Please check clamdoc for more informations and how to
obtain it.
0.15 Notes
----------
This version contains minor bugfixes only, such as:
-) multiple fixes in freshclam (it has problems, when one of the
hosts wasn't accessible), there were logic flaws in the code
-) fixed problem with password protected archives (unpackers were waiting
for password)
New features:
-) OpenBSD support (thanks to Kamil Andrusz <wizz@mniam.net>)
-) added support for amavisd, qmail-scanner (see ./support)
There were no major bugs and I was very busy, that's why new version is
released just today. In the next 2 months, clamav development will be much
faster. Here are some of my plans:
~ 0.20 : New pattern-matching algorithm
~ 0.30 : clamlib; clamscan and the daemon based on it
There is a new homepage:
http://clamav.elektrapro.com
Thanks to ElektraPro.com for sponsoring this site (it's very fast).
Thanks to NERvOus <nervous@nervous.it>.
If you are interested in current development versions, please check
snapshots link.
Resource usage limits in 0.14
-----------------------------
Two new features: --max-files, --max-space have been implemented. If you have
enabled one of this options, clamscan monitors resource usage (number of
created files and used space) and stops extractor when it has exceeded
the limit. You should use these options to protect your machine against
Denial of Service attacks. In the near future --max-levels (limit for
recursive archives extracting) and --max-time (spent on checking/extracting
files) will be implemented.
FreeBSD: AMaViS compile problems
--------------------------------
Please check FAQ.
!!! Strange signatures in VirusSignatures-2002.04.15.10.51.zip !!!
------------------------------------------------------------------
Last version of signatures was ~90 kb, this version is ~474 kb.
But I don't understand, why some signatures are mega-huge. When I decoded
them, they looked like regular files. In CA they were removed from the
database and I probably add them later, in normal sizes.
Installation :
--------------
Please view documentation in ./docs. There are several formats - pdf, ps
and plain latex, if you want to compile it yourself.
You need GNU make (on Solaris you should have gmake).
It was tested only with gcc 2.9x compilers.