Free antivirus protection software for linux

HAVP (HTTP Antivirus Proxy) is a proxy with a ClamAV anti-virus scanner. HTTP Anti Virus Proxy aims are continuous, non-blocking downloads and smooth scanning of dynamic and password protected HTTP traffic.
Havp antivirus proxy has a parent and transparent proxy mode. It can be used with squid or standalone.
Main features:
- HTTP Antivirus proxy
- Scans complete incomming traffic
- Nonblocking downloads
- Smooth scanning of dynamic and password protected traffic
- Can used with squid or other proxy
- Parent proxy support
- Transparent proxy support
- Logfile
- Process change to defined user and group
- Daemon
- Use Clamav (GPL antivirus)
- Operating System: Linux
- Written in C++
- Released under GPL
Enhancements:
- Experimental support was added for chunked Transfer-Encoding, which fixes some broken sites.
- The IGNOREVIRUS configuration directive was added for whitelisting virus names.
- The CLAMBLOCKBROKEN configuration directive was added.
- Detection with AVG was improved.
- HAVP is killed if database reloading fails for Library Scanner.
- The URL is logged when a crashed scanner process is detected.
- The build system updated, adding the --prefix, --sbindir, --sysconfdir, and --localstatedir options.

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.

Yet Another antiVirus Recipe is a procmail that helps to filter out a lot of the most common e-mail worms.
For some of the above (plain iframe, clsid, xml, macro) e-mail is delivered normally but gets a WARNING in subject plus its old subject ($SUB).
Some of the warnings are:
WARNING-XML-CODEBASE-OBJECT-$SUB
WARNING-CLSID-EXTENSION-$SUB
WARNING-IFRAME-$SUB
WARNING-MACRO-$SUB
WARNING-NSCAM-SCORE:$NKNGS-$SUB
Main features:
- :: base64 signatures ::
- Most of these worms are MS-Windows executables and arrive at our e-mail encoded through base64 routines. YAVR uses especially selected signatures to locate these attachments. After that it places them in a directory (/virus/) sorted by name.
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- :: iframe html exploit ::
- Through IFrame tag a html encoded e-mail can download and execute a file from a remote http site without informing the user.
-
- :: CLSID hidden extensions exploit ::
- Attachments which end with a Class ID (CLSID) file extension do not show the actual file extension saved and viewed with Windows Explorer. This allows dangerous file types to look as though they are actually innocent files, such as JPG or WAV files.
-
- :: xml codebase exploit ::
- Usage of some xml objects allow local files to be automatically executed, regardless of the security settings on the target machine.
-
- :: generic executable trap for bat, pif, vbs, vba, scr, lnk, com, exe ::
- The rest of MS-executable files that are not caught from base64 signatures end up in a virus-could-be file.
-
- :: generic macro detection for doc,dot,xls,xla files ::
- MS-Word and MS-Excel files that contain macro commands are marked with a warning.
-
- :: generic detection for most of nigeria scam e-mails (most of them) ::
- Nigeria scam e-mail is not a virus but a big spam problem... There are many good filters that use great algorithms for spam. This is just an add-on.
Enhancements:
- new switches for quarantine or not certain e-mailsbased on some ideas by Dan Smart
- YAVRQUARANTEXE if set to ON it sends unknown executables to /virus/virus-could-be as usual if set to OFF it delivers at inbox with a warning (and the X- header ;)
- YAVRQUARANTNIG same for nigeria scam
- YAVRQUARANTPRN same for porn e-mail read instuctions inside nkvir-rc
- X- marks in headers to help your own procmail scripts
- X-YAVR: MS-EXEC (any MS executable that wasnt identified by signatures)
- X-YAVR: NIGERIA (nigeria scam)
- X-YAVR: PORN (porn related)
- X-YAVR: MACRO (containing macro code)
- X-YAVR: XML-CODEBASE
- X-YAVR: IFRAME
- X-YAVR: CLSID-EXTENSION
- X-YAVR: SENDMAIL-EXPLOIT
- some more Worm.Moodown.b aka Netsky.b signatures
- another Mimail.Q

Panda Antivirus for Linux is an antivirus for Linux servers and desktops. The project is an antivirus designed to be managed from the command line or console. To do this, an executable called PAVCL will be used.

The aim of Panda Antivirus for Linux is to scan and disinfect Windows and DOS workstations connected to a Linux server, as well as the Linux server itself.

Panda Antivirus for Linux scans files using both string searches and heuristic methods. The target files of the antivirus are Word documents, Java Applets, ActiveX controls and compressed files (ZIP, RAR, etc.).

At the moment, it does not scan the boot sector or the partitions table.

Panda Antivirus for Linux is a freeware version: Panda Software does not offer technical support for this software.

Visual F-Prot is an F-Prot Antivirus for Linux Workstations graphical interface.

Visual F-Prot is graphical interface for F-Prot Antivirus(TM) for Linux Workstations for home use (available for free download) copyrighted by Frisk Software International (www.firsk.is). Before you install this program, you must install F-Prot Antivirus, because it wont work without it.

It works with F-Prot antivirus version 4.5.3 and above - its not tested with earlier versions,but it should also work with them.

Also, youll need "xterm" terminal emulator, provided by most, if not all linux distributions.

This program is built with GTKMM 2.4 C++ libraries, so youll also need those for it to work.

Transolution is a Computer Aided Translation (CAT) suite supporting the XLIFF standard. It provides the open source community with features and concepts that have been used by commercial offerings for years to improve translation efficiency and quality.
The suite is modular to make it flexible and provides a XLIFF Editor, translation memory engine and filters to convert different formats to and from XLIFF.
The use of XLIFF means that almost any content can be localized as long as there is a filter for it (XML, SGML, PO, RTF,StarOffice/OpenOffice).
A versatile translation editor for XLIFF files. It aims to provide translators with professional quality editor for both documentation and software. Features tag protection and interactive Translation Memory.
Main features:
- Versatile, can be used for both software and documentation
- Sentence segmentation
- Tag protection
- Interactive Translation Memory
- File format based on XLIFF standard
- Platform independent
- Open source (GPL License)

• A Firewall with stateful packet inspection and application proxies guards Internet communications traffic in and out of the organization.
• A Virtual Private Network (VPN) gateway assures secure communications with remote offices, road warriors and telecommuters.
• Anti-Virus defends computers from both email and web-bourne viruses.
• Intrusion Protection detects and stops hostile probes and application-based attacks.
• Spam Filtering eliminates the productivity drain of opening and deleting unsolicited emails.
• Surf Protection (Content Filtering) and Spyware Protection improve productivity by blocking inappropriate web activities, provide full protection from user tracking threats and violation of privacy.

Major Features:

1. Protects all types of networks Windows, Linux, Unix and others.
2. Delivers comprehensive features at low cost maximizing your ROI (return on investment).
3. Highly effective. Has won numerous industry awards. Beat Cisco and Checkpoint in InfoWorld magazine product review, Beat IBM and Computer Associates in Linux World for Best Security Application.
4. Integrated management platform features an intuitive browser-based interface and one-step updates for rapid deployment and easy management.
5. Can be installed in under 15 minutes or purchased pre-installed on security appliances.
6. Can start with firewall, VPN and spam protection and add other security applications as needed, seamlessly.
7. Runs as a dedicated application server on top of a hardened operating system, which relieves operating system management headaches.
8. Runs on systems ranging from small devices up to large multi-processor systems utilizing gigabytes of memory.
9. Redundant systems can be configured to provide high availability and automatic failover in case of hardware or network failures.
10. Load balancing improves performance traffic shaping can set priorities by network, service and protocol.
11. Logging, automatic backup, and diagnostic tools support high reliability.
12. Free online evaluation workshop to get you started.

Enhancements:

• This Up2Date addresses a few issues that did not make the 7.4 GA version in time.
• This is a pure bugfix/stability release that strengthens the quality of your installation.

t-prot (TOFU Protection) is a filter which improves the readability of email messages and Usenet posts by hiding some of their annoying parts.
The annoyances it handles include mailing list footers, signatures, TOFU, sequences of blank lines, and repeated punctuation.
TOFU is an acronym that stands for "Text oben, Fullquote unten", a German reference to the practice of adding just a few lines of original text and quoting a complete message below them.
Enhancements:
- A new option was added to skip processing of very large and time-consuming messages.