Download e-book for kindle: E-mail Virus Protection Handbook : Protect your E-mail from by Syngress, James Stanger

By Syngress, James Stanger

All the enormous viruses of contemporary instances (think "Melissa" and the "Love Bug") have used email protocols to propagate themselves - frequently making the most of the address-book positive factors of email consumers to spot their sufferers. the email Virus safety guide explores the way you, as an administrator of an e mail server (and maybe a few of the community assets that encompass it), can guard your clients from productiveness loss that effects from email virus an infection. This publication is most suitable to directors of smallish networks who've accountability for (and direct regulate over) firewalls and network-wide antivirus thoughts, in addition to e mail readers at the shopper side.The authors of this quantity (and there are numerous) commence through explaining how and why electronic mail viruses paintings - they aspect the finger ordinarily at software program that is designed for slick presentation of mail rather than for safeguard, in addition to at uninformed finish clients. Then, they start to provide an explanation for what a variety of countermeasures, together with antivirus software program and firewalls, can do, and supply particular configuration recommendation. in addition they discover technique of configuring renowned e mail servers and consumers for optimum resistance to viruses. total, this booklet is thoroughly researched and may supply approach directors with the knowledge - either sensible and heritage - that they should defend their platforms from a few of the extra insidious threats round.

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Extra resources for E-mail Virus Protection Handbook : Protect your E-mail from Viruses, Tojan Horses, and Mobile Code Attacks

Example text

Operating systems, such as those vended by Microsoft, that provide interpreters and models, such as the Component Object Model (COM), which make it easy to create powerful applications in just a few steps. 4. Networks that use TCP/IP. Although TCP/IP is a powerful, efficient protocol, it was not designed with security in mind. Although the next version of IP, called IPv6, improves security, this version of IP has not been implemented widely. , spoof) the origin of an IP address. As a result, it can be very difficult to find the true attacker in case of an incident.

Almost two thirds of the known Internet was brought down in one night. com 119_email_01 12 10/4/00 9:23 PM Page 12 Chapter 1 • Understanding the Threats MDA Attacks In Chapter 2, you will learn how Web-based e-mail servers such as HotMail have fallen prey to attacks. Most of these attacks involve code that is designed to thwart authentication. Sometimes, the attacks focus on code meant to dupe unsuspecting users into thinking that they are logging in, when in fact they are actually sending their passwords to a malicious user.

Whether he logs on locally or remotely, he can use an MUA to read the message. 2. He can use his own e-mail client and log on remotely using either the POP3 or IMAP protocol. The Post Office Protocol 3 is the third version of a protocol that allows you to quickly log into a central server, download messages, and read them. This protocol listens for authentication requests on TCP port 110. With this protocol, you must first authenticate using a user name and a password, and then download the messages.

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