Warn message = X-Antivirus-Scanner: Clean mail though you should still use an Antivirus In nf find "check_message:", and copy on the next line the ClamAV directives below: deny message = This message contains malformed MIME ($demime_reason)Ĭondition = $ĭeny message = This message contains a virus or other harmful content ($malware_name)ĭeny message = This message contains an attachment of a type which we do not accept (.$found_extension) Skip the step above if you are running CustomBuild 2.0, as it adds this for you in the following file: /etc/ You can rebuild the database by using: cd /usr/shareĮdit nf and add the following before "primary_hostname =": av_scanner = clamd:127.0.0.1 3310 This error simply means the virus database can not be found. Or another related error: LibClamAV Error: cl_load(): Can't get status of /usr/share/clamav Starting clamd: LibClamAV Error: cli_loaddb(): No supported database files found in /usr/share/clamav In case you get the following error when trying to start ClamAV: ~]# /etc/init.d/clamd start This will include ClamAV in the CustomBuild configuration and compile ClamAV: # cd /usr/local/directadmin/custombuild Login as root and enter the following commands. AhnLab, the top antivirus, detected 80.Note: If you do not have root-level access you will not be able to make these changes In a Shadowserver six-month test between June and December 2011, ClamAV detected over 75.45% of all viruses tested, putting it in fifth place behind AhnLab, Avira, BitDefender and Avast. In the 2008 AV-Test it rated: on-demand: very poor, false positives: poor, on-access: poor, response time: very good, rootkits: very poor. Out of the 25 million samples tested, ClamAV scored 76.60% ranking 12 out of 19, a higher rating than some much more established competitors.ĬlamAV was included in comparative tests against other antivirus products. In 2011, Shadowserver tested over 25 million samples against ClamAV and numerous other antivirus products. The ClamAV virus database is updated several times each day and as of 30 October 2011 contained 1,063,024 virus signatures with the daily update Virus DB number at 13867.ĬlamAV is currently tested daily in comparative tests against other antivirus products on Shadowserver. It also supports many document formats, including Microsoft Office, HTML, Rich Text Format (RTF) and Portable Document Format (PDF). It has support for Zip, RAR, Tar, Gzip, Bzip2, OLE2, Cabinet, CHM, BinHex, SIS formats, most mail file formats, ELF executables and Portable Executable (PE) files compressed with UPX, FSG, Petite, NsPack, wwpack32, MEW, Upack and obfuscated with SUE, Y0da Cryptor. The application also features a Milter interface for sendmail and on-demand scanning. Sourcefire, now acquired by Cisco, a maker of intrusion detection products and the owner of Snort, announced on 17 August 2007 that it had acquired the trademarks and copyrights to ClamAV from five key developers.ĬlamAV includes a number of utilities: a command-line scanner, automatic database updater and a scalable multi-threaded daemon, running on an anti-virus engine from a shared library. Both ClamAV and its updates are made available free of charge. As of version 0.97.5, ClamAV builds and runs on Microsoft Windows. The application was developed for Unix and has third party versions available for AIX, BSD, HP-UX, Linux, macOS, OpenVMS, OSF (Tru64) and Solaris. One of its main uses is on mail servers as a server-side email virus scanner. ClamAV is an open-source antivirus engine for detecting trojans, viruses, malware & other malicious threats.
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