Link3W.com
 
 
 IT > Internet >  Internet Security     

| Anti-Trojan  Anti-virusNATFirewalls:  Software  HardwareEncryptionAdware & Spyware |
SpamResources |

Internet Security

When logon to the Internet we are not only downloading possible malicious script that is attached to our email and proceeds to take action and passing itself on through our address book. We may alternatively download some free software with some clever code built into the download and start deleting files from our computer or network system, or software with a built in Adware/Spyware that spying our surfing habit and system info. It also opens up to external attack especially if the network is on permanent connection to the Internet.

Although there is not yet any 100% protection available but at least we can have some protections to our system rather than let it running naked over the net, whether it's a single computer system or a network.

ZoneAlarm Internet Security Suite -- The Most Complete Internet Security Solution: Anti-Virus, Anti-Trojan, Anti-Adware, Anti-Spyware, Firewall, wireless security ...

   Latest Virus Alert   

Download ZoneAlarm Security Suite, Save $10


 Viruses 

How It Works: Viruses

Let's look at some Anti-Virus and Anti-Trojan software that detect and scan viruses attached in emails and hidden in downloads. Providing we keep the software program up-to-date with the latest virus information data, we should be safe from most imbedded viruses.

Anti-Trojan Software

DiamondCS TDS-3
TDS-3 Trojan Defence Suite - A comprehensive Anti-Trojan system

Tauscan
From Agnitum - Free Trial
Tauscan is a powerful Trojan virus detection and removal engine capable of detecting over 2000 rogue programs that can inflict serious damage to your system.

The Cleaner
From Software Oasis - Free Trial 

 Anti-Trojan software is not replacement to Anti-Virus and is recommended as an additional layer of protection. 

 

Anti-Virus Software

Get Comprehensive Antivirus Protection with ZoneAlarm Antivirus

McAfee virusscan® plus
AntiVirus, Firewall & AntiSpyware Essential PC Protection

AVG 

Norton

 

 NAT 

Network Address Translation (NAT) is a low-cost security option, a feature can be provided either by hardware - found in most low-cost router or by software - a proxy server such as the Internet Connection Sharing (ICS) with the Windows 98 Second Edition. NAT is often part of a corporate Firewall.

How it works -

NAT hides the network's internal IP addresses from the outside world and is this feature that makes it so secure.

IP address map to a router's single IP address

Using NAT combine with an Internet account and a dynamic address, is probably enough protection for small networks and small businesses that are not involved in ecommerce.

NAT can not totally protect the network from external attacks, there are tools, such as IP spoofers, that present themselves as being local users.

 

 Firewall 

A firewall is a system designed to prevent unauthorised access to or from a private network. Essentially firewall is the first program or process that receives and handles incoming network traffic and the last program to handle outgoing traffic.

Firewall illustration

Firewalls can be implemented in both hardware and software or a combination of both. The main task is to prevent unauthorised Internet users from accessing private networks connected to the Internet, especially extranets and intranets.

Firewalls use a variety of security techniques:

Packet filtering

All file downloads, web page retrievals, emails and Internet traffic travels in the form of packets. This technique examines every packet entering or leaving the network and accepts or rejects it based on user-defined rules. Packets can be allowed or disallowed on the basis of the source IP address, on the basis of the destination port or on the basis of protocol used.
Circuit-level gateway

This validates connections according to configurable rules before allowing data to be exchanged. It also scrutinizing packets, opens a session and permits traffic only from the allowed source and possibly only for a limited period of time.
Proxy Server

Intercepts all messages coming in and leaving the network. The proxy server hides the true network addresses. Some routers also feature NAT, which hides the IP addresses of the workstations behind the IP address of the router.

Proxy Server Software

Setting up a firewall requires a good technical understanding of the principles of TCP/IP and other networking protocols and technologies.

Firewall Hardware

Dlink Internet Server/Firewall

NetGear Routers

 

Firewall Software

McAfee virusscan® plus
AntiVirus, Firewall & AntiSpyware Essential PC Protection

Download Free Firewall Software from ZoneAlarm

Top    

 Encryption 

Using crypto-systems in communication for -

  • Privacy - to prevent unauthorized persons from extracting information from the channel
  • Authentication - to prevent unauthorized persons from injecting information into the channel

 

A simple guide to Cryptography
MSDN Library

COMMERCIAL ENCRYPTION EXPORT CONTROLS
U.S. Department of Commerce

Cryptography

Cryptography and Security

Encryption and Security-related Resources

 

 Spyware / Adware 

  Check the software before download !  

a-squared Malware Database

SpywareGuide Greynets Database


About Spyware
from Optout

Ad-aware
 Free  multi spyware removal utility, that scans your memory, registry and hard drives for known spyware components and lets you remove them safely.

 

 Internet Security Resources 

CERT
Security of the Internet

CERT
The CERT Coordination Center is a center of Internet security expertise

COAST
Computer Operations, Audit, and Security Technology at Purdue University

COMPUTER CRIME RESEARCH RESOURCES

CSRC
Computer Security Resource Center by NIST

FAQ - Firewall Forensics
Explains what you see in firewall logs, especially what port numbers means

Firewall FAQ
from interhack.net

Firewall Product Search & comparison

ICMP
(Internet Control Message Protocol) Usage In Scanning

IDS
(Intrusion Detection System) Resource, Computer Security Institute

Internet Security Resources

Introduction to Network Security

IP Spoofing

List of Ports used by common Trojan programs
All IP protocols, and TCP/UDP ports (incl. Trojans)

SearchSecurity

Security Statisitics

SecuritySearch.Net

Trojan Horse Port List

Virus Bulletin
THE INTERNATIONAL PUBLICATION ON COMPUTER VIRUS PREVENTION, RECOGNITION AND REMOVA

Virus Information Center - Trend Micro

Virus Scanner Warning: content presented in small font !

Virus Search

Why Anti-Virus Software Cannot Stop the Spread of Email Worms

Wilder Internet Security Advisors
Virus alerts, AV software, Firewalls, Spyware

World Wide Web Security FAQ

 

 
Yahoo! Merchant Solution
Small Business Merchant Solution – Yahoo makes it easy - Click for more …
BigChurch.com
Meet people who share the same spiritual beliefs as you. 507,416 Christian Members strong. Join now for FREE.
Love@Lycos
The Lycos member party is growing bigger and bigger with piles of stories. Want to join now its FREE !
Ifbyphone
Now small business can provide 24x7 self service at low cost, high value hosted IVR. Also Web Broadcast and Covert Web surfers to phone calls …
Amigos.com
The Largest Hispanic Personals with 5,9 millions members in English, Spanish & Portuguese. Join for FREE!
TheDrinkShop
Good quality good value Wines, Beers & Bar Accessories Online. UK & Europe deliveries.
Anastasia
10000's Russian Ladies awaiting for you ... email … correspondence ... phone confersation …
Chinese Jade-stone Corner
Lucky Charm pendants
Horoscope pendants
and more …
 



 
  | Email this page | Tell a friend | Mailing List | Link to us | Add Your Site | Top |
| Terms and Conditions of use | Privacy Statement | Broken link |