Free for viruses software for linux

Your computer has been invaded! Dozens of little viruses are pouring in via security holes in Microsoft Internet Explorer, Microsoft Outlook, Microsoft MSN Messenger and Microsoft Recycle Bin!!
Using your trusty mouse you must shoot the buggers before they can destroy your files! Some will steal them from their home directories and take them back to their security hole.
Others will just eat them right there on the spot! See how long you and your computer can survive the onslaught!
Main features:
- 3 different virus types.
- Builds directories and files to protect based on your computer!
- Increasing difficulty level
- Highscore table
- 3 difficulty settings

Kvirus project is a board/puzzle game for the KDE Environment.

Kvirus is a board game for the KDE Environment and a clone of Ataxxlet originally written in Java.

The goal is to copy or jump your virus to eat up the enemy virus. Kvirus provides a cute interface with hours of fun.

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.

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.

Pioneer Linux is a desktop-oriented, Kubuntu-based distribution targeted at new as well as experienced Linux users. The product comes in two flavours: as a freely downloadable live and installation CD, and as a commercial boxed edition with CrossOver Office and technical support.
Test and try before you install Thats right, you can test Pioneer Linux running off the CD before you decide to perform an installation. This means that you can actually run your operating system and learn it before you install or make that critical decision to leave your previous operating system installation. ASPEN for older computers is not a live CD.
Burn CDs Yes take a look at our screenshots and youll see weve included a utility named K3b so you can burn your CDs or DVDs! K3b is a simple yet powerful tool thats simple to use
Browse the Internet safely Yes its safe! You can browse the Internet safely when you use Pioneer Linux. Its not the same anymore with people dropping viruses or keystroke loggers because of that old unsafe browser youve been using for years! Go wild and have fun!
Listen to music You can listen to your favorite music while working using the CD Player included or make cuts and create your own CD from your music! You decide, the tools are included!
Word processing and more! Yes thats right! Your Pioneer Linux operating system comes with OpenOffice.org that allows you to exchange documents with Word users. You even have the opportunity to run spreadsheets and create professional presentations. More? yes a database application is new with OpenOffice.org 2.0
Play some games Weve packed Pioneer with loads of games to help you kill some time. Want more than those included? Check the knowledge base for more games that can be run like Savage or Civilization.
Utilities Weve included some of the best utilities to manage your operating system today. These utilities come with even our basic ASPEN application so you can manage your system day-to-day!
Enhancements:
- Technalign, Inc. has released Pioneer Basic 2.1 of its base Linux operating system. Pioneer Basic 2.1 is being released on DVD. Technalign will continue to ship Pioneer Basic 2.0 for those users who do not wish to purchase a DVD drive for their systems. Pioneer Basic 2.1 is similar to Basic 2.0 with several exceptions. The biggest exception is that Pioneer 2.1 is based on Feisty and not Edgy while it continues to be based on Kubuntu. Adept is no longer incorporated as the update manager, but is now replaced with Synaptic per the business and consumer communities. Also notable are the Guarddog Firewall as well as the KlamAV anti-virus utilities that have been added and OpenOffice.org 2.2.

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.

Virge is mail scanner written in C, which replaces/substitutes procmail for a while, checks the incoming mail, and then sends the mail to the procmail. It will check mail for viruses and/or attachment names. Check the FEATURES/README/NEWS files for more details. Virge requires Sendmail and (optionally) AVPDaemon, Sophie or Trophie (to check attachments for viruses).
Virge replaces temporarily procmail. When new mail comes in, Sendmail will pass the contents of the mail to Virge. At that point, Virge performs set of checks:
Checks if the mail has attachments. If it does not, it sends it to procmail for delivery.
If mail has attachments, Virge creates temporary directory, unpacks attachments there, and asks AVP/Sophie/Trophie to scan the temporary directory for viruses. Virge was created with 2 things in mind: performance and security. Because of performance issues, it was not feasible to use any command line scanners like TrendMicro of McAfee ones.
AVP/Sophie/Trophie are instructed to scan attachments for viruses next. If it finds any viruses, mail is immediately isolated in a directory not (hopefully) accessible to anyone except administrators.
If no viruses were found, Virge will then perform attachment check, and see if any of the attachments are not allowed to be sent to the end user. A configuration file is consulted for list of extensions (or full filenames) that should not be allowed in. If any such attachments were found, tricky part comes - Virge will *hopefully* properly "rewrite" the whole email, and strip the attachments that are not allowed. Small notice is attached at the end of the mail, with names of stripped attachments. Mail is also isolated, in case poor overworked sysadmin ever gets some free time to take a closer look.
IMPORTANT: Please, keep in mind that Virge will *NOT* rewrite & send mails when virus has been found. I will *NOT* implement any such features, since it doesnt make any sense (I havent seen a mail with virus that actually had some valuable content in it for many months - maybe even years).
If AVP/Sophie/Trophie are not available (daemon is down), Virge will still deliver mails and annoy admins through syslog messages. Attachment check is still performed.
Users for which no checks should be performed can also be configured. Location of the file can be specified in the configuration file.
Virge is definitelly trying to not let any lame script kiddies abuse it in any way. It is trying to resist to race conditions, buffer overflows, and similar neat tricks. No guarantees, of course, that there are no security problems in Virge.
Virge tries to be as fast as possible, and not waste CPU time or any other resources. It is still possible to make it perform even better, although I presume it would be in 1-5% range. Will take some more time later, and try to fix all the small performance problems.
And yes - Virge *is* fast. I have made a complete Virge V1 in Perl some time ago, but it was absolute failure. Although I tried to use as little modules as possible and make it as fast as possible... it was crap. 2 minutes after I started a script that sends 3-5 mails per second, I started wondering "Why the hell cant I login to the mailserver anymore?". Perl is nice, but its not good for tools like this. Not at all (except if you have low traffic on your mailserver).
And Virge still needs a *lot* of testing. I have tried to test Virge with many different mail (MIME) formats and tried different tricks in order to bypass its decoding techniques (in order to send a virus or .exe to users), but it handles things pretty well. There are cases, though, when it is possible to trick librfc2045 and send attachments that dont get caught, but those attachments are violating RFCs anyway. If your mail client is so stupid to decode invalid/malformed attachments/mails - you deserved it. Dont use stupid mail clients then. Im not going to start adding all those crappy features into Virge that would let someone detect all possible tricks which can be used. Use good mail clients, dont rely on Virge to save you.
Main features:
- Virge can check every incoming mail for attachments, and can remove attachments that are considered dangerous.
- "Dangerous" can be defined:
- email with specific kinds of attachments (e.g., .EXE, .COM, etc.)
- email that contains a virus as identified by Sophie ( http://www.vanja.com )
- email that contains a virus as identified by trophie ( http://www.vanja.com )
- email that contains a virus as identified by AVPDaemon (http://www.avp.ch)
- Any combination of the above.
- Dangerous email can trigger:
- rewriting that removes virus.
- alert back to sender.
- alert to recepient.
- alert to system manager.
- rewrite to remove virus.
- All offending mail messages can be isolated for later reviewing.
- Written in C, so it is very fast, doesnt waste resources, and doesnt depend on a complicated perl installation (which is subject to breaking).
- Notification can be sent (configurable) to sender/recipient of suspicious/infected mail. Templates can be used to define the layout of the mail.
- Regular expressions can be used for filename matching
- Virge was made with security in mind, and should be hard to abuse
- Can be configured to fail open or fail closed if load on the machine goes too high.
- Virge 3.0 designed for easy integration with Postfix

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