Free avg anti virus definitions software for linux

About AVG Anti-Virus:

• AVG Professional Single Edition is perfectly designed to give you the maximum antivirus protection for your single home PC or workstation.
• It is simple to install and operate. No IT expertise is required and it can run in the background, providing uninterrupted protection. All file and e-mail activity is checked automatically, allowing you to get on with your work without worrying about viruses.
• It is extremely fast, reliable and light on resources, so, no matter how demanding a user you are, it will not slow down your performance.

Enhancements: Added detection of new variants of trojans SHeur2.ANNO, BackDoor.Hupigon5.LCW, SHeur2.ANOR, Downloader.Generic8.AXOI, PSW.Banker5.ONF, Generic13.BPUS.

AntiVirus Scanner is an anti-virus scanner for Endeavour Mark II that uses the ClamAV library (libclamav).

AntiVirus Scanner allows you to create a list of scan items for frequently scanned locations and features easy virus database updating, all in a simple GUI environment.

Aegis project is a virus scanner for Linux, Unix and Windows with a simple and intuitive user interface.

Aegis supports scanning of subdirectories, hidden files and .zip and .tar archive files, and drag-and-drop of files from the Nautilus file browser, or your Gnome desktop. When a virus is detected you can choose to delete, quarantine or rename the file.

The Qmail virus scanner (QScan) is a mail filter for Qmail that scans incoming messages using the Sophos Antivirus engine, immediately rejecting infected content.

It is designed to be minimalistic, yet extremely fast and secure, and uses multiple pipes instead of the traditional temporary files and privilege separation. It works with non-native versions of the virus scanner like under OpenBSD with Linux or FreeBSD emulation.


You must create a temporary directory to extract MIME attachments, and replace Qmails original qmail-queue program with Qscan. Quick way to achieve this for the impatients :

mkdir /var/qmail/qscan
chmod 700 /var/qmail/qscan
chown qmaild:qmail /var/qmail/qscan
ln /var/qmail/bin/qmail-queue /var/qmail/bin/qmail-queue-old

Now, lets compile and install Qscan :

./configure --help

./configure [your beloved flags]

make install-strip

The last step is to replace the original qmail-queue program with our filter :

rm /var/qmail/bin/qmail-queue
ln -s /usr/local/sbin/qscan /var/qmail/bin/qmail-queue

Depending on your local configuration, it may be needed or not, but start with doing it :

chown qmaild:qmail /usr/local/sbin/qscan
chmod 6711 /usr/local/sbin/qscan

After testing, if everythings ok for you, remove the setuid bit :

chown 0:0 /usr/local/sbin/qscan
chmod 711 /usr/local/sbin/qscan

samba-vscan provides on-access scanning of Samba shares with ClamAV (clamd and libclamav), F-Secure AV, FRISK F-Prot Daemon, Kaspersky AntiVirus, OpenAntiVirus.org ScannerDaemon, mks AntiVirus, NAI/McAfee VirusScan, Sophos Sweep (via Sophie), Symantec AntiVirus Engine (via ICAP), and Trend Micro (via Trophie). It supports Samba 2.2.x/3.0.x.
samba-vscan currently is made of ten Samba VFS modules:
vscan-fprotd - for use with F-Prot Daemon
vscan-icap - for use with an ICAP anti-virus service, currently only Symantec AntiVirus Engine 4.x is supported (this is alpha code and not yet for production environment!)
vscan-kavp - for use with Kaspersky AntiVirus (kavdaemon) via Kaspersky KAV client C library. vscan-kavp is a stripped-down version from vscan-kavp of Ries van Twisk). For the full-featured version please see http://www.rvt.dds.nl
vscan-mks - for use with mks32 via mks_vir Daemon
vscan-oav - for use with OpenAntiVirus.org ScannerDaemon
vscan-sophos - for use with Sophos Sweep via Sophie (http://www.vanja.com/tools)
vscan-trend - for use with Trend Micro FileScanner / InterScan VirusWall via Trophie (http://www.vanja.com/tools)
vscan-clamav - for use with Clam AntiVirus Daemon (clamd) or libclamav (http://www.clamav.net)
vscan-nai - for use with NAI/McAfee uvscan
vsan-fsav - for use with F-Secure AntiVirus (daemon)
vscan-symantec - for use with Symantec Anti Virus Engine Note: the vscan-symantec odule will statically linked against the symantec library. This lib is not covered by GPL and the resulting vscan-symantec VFS module may infringe the GPL of Samba! Due this reason, the vscan-symantec module will only be build if --with-symantec flag is used for ./configure
Enhancements:
- NEW, VERSION, ChangeLog: updated
- icap/vscan-icap.c: bugfix
- Released samba-vscan 0.3.6b
-

SMC non-context E-mail filter - is an software application designed to significantly reduce the amount of SPAM/UCE (junk-mail) you receive. SMC uses a dynamic local and DNS based remote "whitelists" (for known/trusted senders), DNS based "blacklists" (for undesired senders), and an original "autoauthentication" system (for unknown, but legitimate senders).
In additional SMC has a set of useful features which allows to preserve mail recipients from dangerous message attachments, HTML includes. SMC is an Sendmail milter (plugin), which stops the junk-mail without receiving one.
SMC uses 3 original algorithms, one of which is "Check relay by NS" simulates a dynamical whitelist and will always accept the messages from mail systems satisfying to following conditions:
1. Mail domain name (the host part of the senders e-mail address) must have an MX records;
2. Mail domain name and the connection host address must be resolved;
3. Connection host must be listed at the one of nameservers which hold the senders mail domain name.
The second from the developed algorithms is a "check delays" algorithm which is based on statistical check of delivery delays, generated by a [tempfail] return code, that allows to exclude a direct receiving of a mail, which not passed through the standard mail server.
NOTE: Using this feature the delivery of the mail from unknown, but legitimate senders will be delayed for a count of 10-minutes checks, which setted by the "maxcount" configuration parameter.
And the third of original algorithms is "auto-authentication" algorithm: The sender of a "mail contact" (sender-recipient pair) means as authenticated (whitelisted) if the filters statistics module has registered the both of a sended forward (request) and a recieved backward (reply) messages of this contact. The messages from the such authenticated senders will never be delayed by the previous "check delay" algorithm.
Enhancements:
- CLOSE_WAIT problems have been solved (a critical bug).
- There is a critical bugfix to prevent DNS storms.
- All of the resolver functions use the local resolver context.
- Automake and autoconf support have been added.

Konqueror Anti-Phishing Toolbar is an extension for the Konqueror browser that helps protect against phishing attacks.

See http://opdb.berlios.de/doc/karpion-manual.html for a short guide to the
Konqueror Anti-Phishing Toolbar.

Installation:

The file INSTALL contains generic installation instructions.

The Anti-Phishing toolbar requires libphish, a library to interact with the Open Phishing Database. libphish can be obtained at the OPDB website, at http://opdb.berlios.de/.

Installation is basically done as usual:
./configure
make
make install

with the latter command being executed as root.

ABOUT OPDB

The Konqueror Anti-Phishing toolbar is part of the Open Phishing Database project, an effort to create and maintain and open database of phishing sites in order to protect users, in addition to providing extensions to browsers that utilise the database.

THE ICON

The anti-phishing icon is based on the babelfish icon from Everaldos crystal icon set for KDE: http://www.kde-look.org/content/show.php?content=8341

Viralator is a Perl script that virus scans HTTP/FTP downloads request on a UNIX server after passing through the Squid proxy server.
Even when I implemented virus protection for my network email server we still continued to get the odd virus. Most of the viruses came from people using free webmail accounts like Hotmail or Yahoo and downloading the infected attachments to their machines or through downloading junk.
Rather than block access to the users I decided to look at how we could better protect the network. I looked at a couple of different products both comercial and free but they were either too expensive or did not meet my needs.
That is how Viralator was born. Viralator Proxy Virus Scanner is licenced under the GPL.
Viralator should work in any UNIX system that uses Apache and Squid servers. We have reports about successful instalations on:
- RedHat Linux
- Mandrake Linux
- SuSe Linux
- e-Smith Linux
- Slackware Linux
- Conectiva Linux
- Debian Gnu Linux
Supported Redirectors:
- Squirm
- SquidGuard
- Jesred
Supported Virus Scanners
- AntiVir
- AVP
- RAV
- Inoculate
- Sophos Sweep
- McAfee
- Trend
- Clamav
- Bit Defender (free edition)
The original concept for Viralator came from the Viromat project. Without Viromat the Viralator project would not have had a starting point. We can also thank Ralph Meyer for badgering me into releasing the script under the GPL.
Enhancements:
- Parenthesis are included on the regular expression used to validate URLs.
- The character set checking step, which was not working before last patch released, has been fixed.