Free anti software for linux

AntiChess project is an anti-chess game.

AntiChess is an anti-chess game written in Java.

The goal is to get checkmated or lose all your pieces except your king to your opponent.

You must take your opponents pieces if you can.

It supports 2 player and 4 player games on the same board

Anti-Web project is a single-process, light-weight, non-threaded webserver that emphasizes simplicity, efficiency, and security.
AW 3 is the result of a rewrite of the webservers internals and represents much thought, effort, and careful design by the AW team.
With a few (perhaps signifigant) exceptions, AW 3 should be drop in compatible with AW 2. To use this drop in compatibility, refer to the "Simple Configuration" section. If you want to use some of AW 3s more advanced features, refer to the "Complex Configuration" section.
Your rights to use, distribute, and modify AW are protected by the GNU GPL license. Please see the file COPYING for more details.
Compilation
You should be able to compile AW simply by extracting it, changing into the extracted directory and typing
make
If all goes well, you should end up with an executable called "awhttpd".
If all does not go well, check the top of the file Makefile for compilation options. You will need to do this for a SunOS compilation, for instance.
Enhancements:
- Some extra CGI functionality was added.

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.

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.

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.

This library defines set of data types and artithmetic operators, which can be used to code procedures with the intent to produce binary code which is difficult to analyse and reverse engineer.
This is achieved by moving all the calculations to yet another layer, which produces messy binary code being difficult to read and figure out, what calculations are actually performed and on which data.
Usage
The library provides arithmetic and logic operators to work with those data types. For example, addition performed in OBCODE would be coded as follows:
#include "obcode.h"
struct obyte ob1;
struct obyte ob2;
struct obyte obsum;
unsigned char sum;
obcode_init(0); /* Initialise obyte random */
obyte_set(&ob1, 12); /* Normal number 12 to obyte */
obyte_set(&ob2, 33); /* Normal number 33 to obyte */
obyte_add(&ob1, &ob2, &obsum); /* Perform OBCODE addition */
sum = obyte_get(&obsum); /* Return to normal world */
obcode_finish();
If those numbers were already encoded as obytes, people reverse engineering the code would never see 12 and 33, only messy operations on long, random looking data streams, eventually giving the product of 45.
Version restrictions:
- This library is still work in progress. It contains bugs and the operators set is very limited. Suggestions and improvements are welcome.
Enhancements:
- Code and documentation cleanups.

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

gadoyanvirus is a virus checker for qmail that works with the QMAILQUEUE patch by Bruce Guenter. gadoyanvirus scans incoming messages using the ClamAV anti-virus library.

Suspected messages are quarantined and a notification message can optionally be sent to the recipients.