Free protection against viruses software for linux

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.

F-Prot Antivirus security software package has various components that help keep your system secure from viruses, backdoors, trojans and other malicious programs. The project includes the RealTime Protector, a memory-resident monitoring utility that observes all files accessed on your system, a Scheduler where you can set the Scanner to make automatic scans or updates on your system at any time and an Updater to manage all signature updates.
For home users using the Linux open-source operating system, we offer F-Prot Antivirus for Linux Workstations. F-Prot Antivirus for Linux Workstations utilizes the renowned F-Prot Antivirus scanning engine for primary scan but has in addition to that a system of internal heuristics devised to search for unknown viruses
F-Prot Antivirus for Linux was especially developed to effectively eradicate viruses threatening workstations running Linux. It provides full protection against macro viruses and other forms of malicious software - including Trojans.
Main features:
- Scans for over 191534 known viruses and their variants
- Ability to perform scheduled scans when used with the cron utility
- Scans hard drives, CD-ROMS, diskettes, network drives, directories and specific files
- Scans for images of boot sector viruses, macro viruses and Trojan Horses
F-Prot Antivirus for Linux Workstations is FREE for use by personal users on personal workstations

Openprotect is our set of e-mail filters bundle consisting of Kaspersky Antivirus, Clam Antivirus, SpamAssassinand MailScanner along with our Qmail module.
Enhancements:
- MailScanner was updated to version 4.46.2 with an improved phishing net for JavaScript.
- A highlight Phishing fraud option was added along with the ability to quarantine all mail that has been modified and a Scan Messages option to completely disable processing of a particular mail address.
- ClamAV was updated to 0.87 and SpamAssassin(SA) was updated to 3.1.0 with many plugins and MCP patches for better spam/MCP filtering.
- A openprotect-test utility that sends test virus, spam, and clean mail to verify the setup was added along with openprotect-renew, which installs a KAV license and views expiry status.
- razor 2.77 with various bugfixes was included.

F-Prot GUI is a graphical user interface for great (and free for individual users) command line antivirus called F-Prot.
F-Prot GUI is a very simple script but not featureless, I hope it will be useful.
For home users using the Linux open-source operating system, we offer F-Prot Antivirus for Linux Workstations. F-Prot Antivirus for Linux Workstations utilizes the renowned F-Prot Antivirus scanning engine for primary scan but has in addition to that a system of internal heuristics devised to search for unknown viruses
F-Prot Antivirus for Linux was especially developed to effectively eradicate viruses threatening workstations running Linux. It provides full protection against macro viruses and other forms of malicious software - including Trojans.
Main features:
- Scans for over 314168 known viruses and their variants
- Ability to perform scheduled scans when used with the cron utility
- Scans hard drives, CD-ROMS, diskettes, network drives, directories and specific files
- Scans for images of boot sector viruses, macro viruses and Trojan Horses

POP3 Virus Scanner Proxy is a full-transparent proxy daemon which scans all mails for viruses using third party scanners (built-in support for AVPD and Trophie).

You have to set up a port redirection in the linux-netfilter (iptables) so that all connections from e.g. inside your office to any POP3 server outside in the world will not leave your router, but come a local port, on which POP3VScan listens. POP3VScan receives from the linux kernel the original destinations of packets (the POP3 server outside in the world) and will connect to them.

All data we receive from the client will be sent to the server, and vice versa. With a little enhancement: we parse the neccessary parts of the POP3 protocol and when an email is sent from the server, we store it into a file, invoke a virusscanner and send it if it is good, or we just replace it with a virus notification. It should be possible to use all scanners using the scannertype=basic. Also POP3VScan provides scannertype=avpd for high-speed scanning using Kaspersky Anti-Virus for Linux, every C programmer can easily adept other scan-daemons (trophie, sophie, antivir, ...).

Neither the client nor the server has to be configured, none of them will take notice that theres a mailscanner (except the client when he gets a virus notification or if he looks into the header, and the server gets our ip as source).

Milter-virus is not a virus scanner. It is a wrapper that can be used with many commercial and freely available virus scanners. Milter-Virust is written completely in C, and requires (few skills??).
It is run-able with the Milter interface, but then will only scan for "double extensions".
If you wish it to scan for more, you need at Ripmime or other tools to extract files from MIME-encoded emails. You also need a (command-line) virus scanner.
The difference between this program and the original is that this is much more configurable via the config file. The original version has the advantage that it is simpler and easier to bugfix.
Enhancements:
- This is a large update.
- Many problems in the statistik module were fixed.
- Some spam protection features were included.

Have you ever been told "stop wasting your time playing video games?" Well now it is time to turn those hours of wasted time into skills that can earn you money.
Blood Toll project is the first ever online video game where everyone has a price on their head, and the more you frag the more money you make. Play for free and win cool prizes with our training mode until you are comfortable enough to play the real thing.
Main features:
- Completely free to download and play
- One click installation
- Fast paced game play
- Compete against real people for real money
- Compete for cool prizes
- Extremely fast to download
- Constantly updating with new levels, items and weapons
- Software checks to insure all players have a sufficient internet connection to prevent lag
- Built with exceptional cheat protection and security

The tcp_wrappers package allows you to monitor and filter incoming requests for the SYSTAT, FINGER, FTP, TELNET, RLOGIN, RSH, EXEC, TFTP, TALK, and other network services. It provides tiny daemon wrapper programs that can be installed without any changes to existing software or to existing configuration files. The wrappers report the name of the client host and of the requested service. The wrappers do not exchange information with the client or server applications, so it does not impose no overhead on the actual conversation between the client and server applications.
It supports both 4.3BSD-style sockets and System V.4-style TLI. Praise yourself lucky if you dont know what that means.
The package provides tiny daemon wrapper programs that can be installed without any changes to existing software or to existing configuration files. The wrappers report the name of the client host and of the requested service; the wrappers do not exchange information with the client or server applications, and impose no overhead on the actual
conversation between the client and server applications.
Optional features are: access control to restrict what systems can connect to what network daemons; client user name lookups with the RFC 931 etc. protocol; additional protection against hosts that pretend to have someone elses host name; additional protection against hosts that pretend to have someone elses host address.
The programs are very portable. Build procedures are provided for many common (and not so common) environments, and guidelines are provided in case your environment is not among them.
Requirements are that network daemons are spawned by a super server such as the inetd; a 4.3BSD-style socket programming interface and/or System V.4-style TLI programming interface; and the availability of a syslog(3) library and of a syslogd(8) daemon. The wrappers should run without modification on any system that satisfies these requirements. Workarounds have been implemented for several common bugs in systems software.
What to do if this is your first encounter with the wrapper programs: 1) read the tutorial sections for an introduction to the relevant concepts and terminology; 2) glance over the security feature sections in this document; 3) follow the installation instructions (easy or
advanced). I recommend that you first use the default security feature settings. Run the wrappers for a few days to become familiar with their logs, before doing anything drastic such as cutting off access or installing booby traps.
Enhancements:
- Improved the anti source-routing protection. The code in version 7.5 was not as strong as it could be, because I tried to be compatible with Linux. That was a mistake. Sorry for the inconvenience.
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- The program no longer terminates case of a source-routed connection, making the IP-spoofing code more usable for long-running daemons.
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- When syslogging DNS hostname problems, always stop after a limited number of characters.