DeSofto SpamFilter   
http://desofto.com

Save your traffic and time. DeSofto SpamFilter automatically kills most Spam immediately at the server without downloading and blocks the rest of Spam for manually checking. An unique neuro-algorithm has been used in SpamFilter product to detecting legitimate mail messages and Spam messages, the technique has more precision than other filter-based and keyword-based anti-spam technologies. It automatically learn for your own correspondence and new spammers' technologies. http://spamfilter.desofto.com/

AntiVirus for MDaemon   
http://www.altn.com

AntiVirus for MDaemon is a virus scanner designed to detect malicious content embedded or attached to email messages. AntiVirus software integrates seamlessly with MDaemon on the server, stopping viruses, worms, or trojans before reaching individual users on the network. Features include heuristic detection which checks messages and attachments for threat-like content, inline scanning which rejects infected emails during the delivery process and returns the message to the sender for handling, offline scanning, schedule signature file updates to meet your needs, and free urgent update notifications concerning new serious threats.

httpsentry   
http://www.httpsentry.com

HttpSentry <a href="http://www.httpsentry.com">(http://www.httpsentry.com)</a> is a free IIS Filter to detect hacker attacks. It prevents common security problems such as SQL injection, Directroy traversal and many more. it also supports URL rewrite and Server masking. HttpSentry is also an effort to shift the burden of input validation and other security concerns off web application developers. Traditional network firewalls cannot protect web applications. Port 80 is wide open and according to Gartner group, 75% of cyber attacks and internet security violations are generated through Internet Applications. HttpSentry focuses on easy of use. The installation comes with only one dll and one configuration file. All the basic rules to fight common problems are already built in and can be easily disabled via the configuration file if necessary. Features of HttpSentry are: 1. A set of built in rules for detecting common invasion techniques such as Directory traversal, SQL injection, Shellcode attack, URL split, Serverside include attack, OS command execution, Buffer overflow and Code red attack. 2. Ability to allow/disallow URL which contains certain meta characters. Most of the meta characters do not form legitimate input for web applications and are mostly used by hackers. 3. Selective filters allow user to specify header locations, such as client IP, to filter on. 4. Custom filters allow user to define any form of regular expression based rules. 5. User can choose from three forms of actions on each individual rule. It could be deny of access, redirect to some other web page, or/and log the request to a file. 6.URL rewrite manipulates URL base on regular expressions and allows user to redirect web pages. 7.Server mask protects web server identity by changing the "Server" field in the response header.

Norton AntiVirus   
http://www

Symantec’s Norton AntiVirus™ 2004 is the world’s most trusted antivirus solution† —now with expanded detection of both known and emerging threats. Norton AntiVirus detects and removes viruses, worms, and Trojan horses automatically— without interrupting your work. It works in the background 24 hours a day to protect email messages, instant message attachments, Internet downloads, and other files. Now it can also detect viruses in compressed file archives before you open them, reducing the risk of infecting your computer. Symantec’s exclusive LiveUpdate™ technology automatically checks for new virus protection updates on a regular schedule to keep the program up to date against the latest threats. It now even alerts you when your virus protection is getting outdated. Norton AntiVirus also defends your PC against emerging threats. Script Blocking intercepts fast-moving script-based viruses such as “ILoveYou” and “Anna Kournikova,” and Worm Blocking stops worms from using your outgoing email messages to infect other computers. The expanded threat detection in Norton AntiVirus 2004 alerts you to the presence of spyware, keystroke loggers, and similar programs that can steal personal information and leave your PC vulnerable to other attacks. Stop viruses and protect your PC with award-winning Norton AntiVirus. Small Office Packs for 5 or 10 users are also available.

Norton AntiVirus Professional   
http://www

Symantec’s Norton AntiVirus 2004 Professional is the world’s most trusted antivirus solution† with advanced protection. It combines award-winning virus defense with tools to help you recover important files and securely delete sensitive information. And it comes with a license for two computers, so it’s perfect for home offices. Norton AntiVirus detects and removes viruses, worms, and Trojan horses automatically, without interrupting your work. Now it can also find viruses in compressed file archives—before you open them and risk infecting your computer. Symantec’s exclusive LiveUpdate technology defends your computer from new viruses with automatic virus protection updates. Norton AntiVirus also defends your PC against emerging threats such as worms and script-based viruses. Expanded threat detection even alerts you to the presence of certain non-virus threats such as spyware that can steal personal information and leave your PC more vulnerable. Norton AntiVirus Professional also includes two other powerful Symantec tools. Data recovery helps you restore files that have been lost or damaged through accidental deletion or system failure—no more retyping your work or searching through backup disks. And data cleaning ensures confidentiality by eliminating all traces of files you no longer need. Protect your valuable data today with award-winning Norton AntiVirus Professional.