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Questions tagged [clamav]

Antivirus for UNIX-like systems primarily for mailserver integration.

Clam AntiVirus is an open source (GPL) anti-virus toolkit for UNIX, designed especially for e-mail scanning on mail gateways. It provides a number of utilities including a flexible and scalable multi-threaded daemon, a command line scanner and advanced tool for automatic database updates. The core of the package is an anti-virus engine available in a form of shared library.

  • command-line scanner
  • fast, multi-threaded daemon with support for on-access scanning
  • milter interface for sendmail
  • advanced database updater with support for scripted updates and digital signatures
  • virus scanner C library
  • on-access scanning (Linux® and FreeBSD®)
  • virus database updated multiple times per day (see home page for total number of signatures)
  • built-in support for various archive formats, including Zip, RAR, Tar, Gzip, Bzip2, OLE2, Cabinet, CHM, BinHex, SIS and others
  • built-in support for almost all mail file formats
  • built-in support for ELF executables and Portable Executable files compressed with UPX, FSG, Petite, NsPack, wwpack32, MEW, Upack and obfuscated with SUE, Y0da Cryptor and others

Official site: www.clamav.net

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Mail server - Amavis with 7zip

After 1,5 year with working mail server on Ubuntu 14.04 I've experienced strange amavis logs listed below: http://pastebin.com/RwbNw78f Mail server is: Postfix + Dovecot + MySQL + Amavis + ClamAV + SpamAssasin deployed with recipe…
Curl User
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enable fanotify on oracle redhat linux kernel 2.6.39-400

As a newbie in linux environment, I am trying to install clamav daemon, which is clamd, on oracle redhat linux 6 kernel EUK 2.6.39-400. It needs to have fanotify enabled in the kernel. As I see there is no fanotify.h in the…
Mehdi
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Diagnosing an alleged trojan reported by ClamAV

Unfortunately I have very little Linux experience. We have an Amazon instance running Debian 7.6 and got a message from Amazon saying we were port scanning. We have hopefully stopped this by restricting outbound traffic via an Amazon security group,…
Andy Nichols
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Why doesn't the Clam antivirus daemon start with a Cannot Allocate Memory Error?

/etc/init.d/clamd start Error: [FAILED] log gives ERROR: daemonize() failed: Cannot Allocate Memory On Cent OS total Mem: 510876kb /etc/init.d/clamd start in /var/log/clamav ERROR: daemonize() failed: Cannot Allocate Memory? Is this a problem that…
tread
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Alert Postfix sender when outbound email is not delivered due to amavisd-new checks

I'm running Postfix 2.11 together with amavisd-new which works fine with spamassassin and clamav to prevent inbound/outbound spam and virus traffic. Right now i'm looking for a way to alert users when outbound email is not delivered - rejected,…
peris
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clamd.amavisd Fails to start on CentOS

I have set up a CentOS cloud server but I am having issues getting clamd amavisd to run, when I call: /etc/init.d/clamd.amavisd start I get the following error: Starting clamd.amavisd: /etc/init.d/functions: line 188: 2414 Killed $cgroup $nice…
Matt
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What accounts does clamav use on different Linux distros

I'm trying to fix a problem in a Chef recipe for installing / configuring ClamAV which is caused by the recipe using the wrong default user/group name for the clam service account on some platforms. It seems that: On CentOS 6, the service account…
Stephen C
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CLAMAV on Centos Mail Server: Can't connect to UNIX socket clamd.sock

In my Centos 6.4 server, I am using Postfix and Dovecot with Amavis/ClamAV filter. Lately I have been trying to solve my spam problem(only occurs in Gmail and Hotmail) so I've been tailing logs. Though I can send and receive e-mails, I have…
kubilay
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centos 6.4 amavis-new, clamav not function

i install on centos 6.4 amavis-new and clamav /etc/clamd.d/amavisd # cat amavisd.conf # Use system logger. LogSyslog yes # Specify the type of syslog messages - please refer to 'man syslog' # for facility names. LogFacility LOG_MAIL # This option…
mardon
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how to change ispconfig clamav log file location

On ispconfig 3 web interface, log files section under Monitor There are several log files, one of them is Mail Log and other is ClamAV Log. Unfortunately ClamAV log points to same file as Mail Log which is /var/log/maillog I want to change the link…
Ergec
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Centos5 /tmp/.xzibit Displays multiple viruses in clamav, Can I delete this directory safely?

Possible Duplicate: How do I deal with a compromised server? I did a scan on my entire vps finding the folder above with a good amount of viruses. Can I safely delete this folder? Can I through ssh or is there a way I need to do it through the…
kilrizzy
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Can LocalSocketGroup be successfully set to a non-default? Error: Failed to change socket ownership

I want to start clamd normally as a root user, and assign the local socket to be used by Qmail-Scanner (only). clamd runs as user/group clamav, qmail-scanner-queue as qscand. $ id -nG clamav clamav qscand $ id -nG qscand qscand clamd.conf as…
dmaestro12
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can not load clamav-extension

I try to use the clamav-extension by following these steps. There weren't any errors, but after restarting apache, no clam-extension is loaded. php -v returns no errors. I've set the extension_dir in php.ini and clamav.so is in…
32bitfloat
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Downloading large files fails, Squid + c-icap + SquidClamAV

I am building a new proxy server with Squid & SquidClamAV. I am facing problems with downloading large files. I have set a maxsize of 52428800 bytes in squidclamav.conf - which should prevent the scanning of files bigger than 50MB. Downloading…
mikkoko
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Changing location of ClamAV logging files

I've run into a weird problem with ClamAV that I have been unable to resolve, due to a incredibly non-informative error message. I've installed ClamAV via aptitude on an Ubuntu box (ClamAV 0.96.5/13202 according to the system) up on EC2 and it is…
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