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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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Postfix with Clamd

I've been setting up my own VPS for an e-commerce, as well as a mail server. In order to setup the e-commerce, mysql and apache is running. In order to setup the mail server, I've installed postfix. However, after installing postfix, several days…
Reinherd
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ClamD server Currently Down

I'm getting this error message after install ClamAV from direcadmin message system. OS: CentOs 5. The service 'clamd' on server starhost.net is currently down This message has been automatically generated notifying you that the service clamd is…
RedLEON
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How to detect mail server dangerous load level?

I have a 512 MB VPS running on Debian Squeeze 64bit serving a complete email system (postfix, courier, amavis, clamav, spamassassin, roundcube). All the RAM is always used: max free memory is 10MB, min is 0 MB. The Swap is 2 GB and is almost not…
Antonio Madonna
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ClamAV detected Win.Virus.Expiro-10004389-0 malware on Ubuntu instance in Conda package

Today clamAV scanned my AWS instances and detect infected files on each. It looks like false positive due to several reasons: All these files are created in 2021 (why were they detected only now?) SSH port for each instance is protected by MFA +…
Rougher
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Setup spammassin and clamav with Exim on ubuntu 16.04

I've been searching for help in setting up Spammassassin and ClamAV with Exim (on ubuntu-16.04), but all the guides are horribly out of date. Could anyone share their setup please?
James Swift
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Should I use ClamAV?

I installed ClamAV and PHP-ClamAV on my Ubuntu server. Everything works... But it is extremely slow. Even when I just call basic functions without scanning a file. So it got me wandering if I really needed ClamAV and if they were other alternatives…
jnbdz
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Clamav. WARNING: No clamd server appears to be available

I have clamav.log full of these messages, what might be the problem and how to fix this? I have Debian clamav-0.97.6+dfsg-1~squeeze1 spamassassin-3.3.1-1 dovecot-pop3d-1.2.15-7 postfix-2.7.1-1+squeeze1 and also there is somewhere near…
Jevgeni Smirnov
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Spam and Virus filtering not working with amavis, Spamassasin and ClamAV using Postfix on Ubuntu

I have setup mailserver using Postfix and Dovecot. Sending is receiving mail is working perfectly. This is email server is running from last couple of years without any issue. Recently we started getting lots of spam so I decided to setup spam and…
hsinxh
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