Detecting and Eliminating Computer Viruses at the Gateway

Written by CipherTrust

Continued from page 1

Computer Virus Risks

Recent attacks from various types of computer viruses and worms have had profound effects on computer systems aroundrepparttar world. Enterprises have been brought to their knees and forced to spend billions of dollars cleaning uprepparttar 109509 mess and rebuilding their infrastructures. Whilerepparttar 109510 increased IT costs are clear, there are other risks corporations face with regard to e-mail borne viruses.

System Downtime

E-mail has evolved to berepparttar 109511 primary communication tool for most organizations andrepparttar 109512 loss of e-mail due to attack can severely affect enterprise operations. Beyondrepparttar 109513 immediate expenses involved in restoringrepparttar 109514 network, an attack on your enterprise e-mail system can also result in lost hours and days for employees who have come to rely on it to accomplish their daily tasks.

Resource Depletion

The costs of cleaning up after an attack are significant. IT teams are forced to spend considerable time and money repairing virus damage. The damage, however, is rarely contained to network servers. Once insiderepparttar 109515 network, viruses can quickly infect large numbers of relatively exposed client machines - all of which must be individually cleaned, patched and repaired.


Inrepparttar 109516 past, when a new vulnerability was discovered, network administrators scrambled to apply security patches fromrepparttar 109517 makers of their anti-virus software and manually reviewed quarantine lists for virus-infected messages. Software manufacturers release patches so frequently that network administrators cannot reasonably be expected to keep up with them all. As stated by Gartner Research, “Enterprises will never be able to patch quickly enough. After all, attackers have nothing else to do.” The staggering damage caused by recent computer viruses and malware attacks is clear evidence that manual intervention to institute emergency measures or review quarantined messages is rarely effective against rapidly propagating threats.

Compliance and Liability

Recent Federal regulations such asrepparttar 109518 Health Insurance Portability and Accountability Act (HIPAA), Gramm-Leach-Bliley Act (GLBA) and Sarbanes-Oxley Act (SoX), require enterprises to protect data residing in mail servers and other internal systems. Security breaches violate these regulations, exposing sensitive data and openingrepparttar 109519 door to serious sanctions and costly litigation.


Falling victim to a virus attack can also result in lost trust from business partners and customers. According to Gartner, “Enterprises that spread viruses, worms, spam and denial-of-service attacks will find not only that malicious software can hinder their profitability, but also that other businesses will disconnect from them if they are considered to be risky.” While an attack may not be your fault, it is most certainly your problem.

The Solution

Although signature-based anti-virus systems are inadequate to preventing virus attacks inrepparttar 109520 first few hours or days of an outbreak, it is possible to identify outbreaks before they infiltrate your organization’s network and become a problem. In fact, doing so successfully requires tight integration of several different technologies designed to analyze mail based on many different characteristics. One ofrepparttar 109521 most innovative and important technologies for meeting these threats is known as Anomaly Detection.

Large-scale virus outbreaks create anomalies in mail flow which are identifiable byrepparttar 109522 message content, source, volume, attachment or any of a number of other indicators. When a particular message appears to be a part of a sudden surge of anomalous messages moving acrossrepparttar 109523 internet,repparttar 109524 message can be quarantined until virus definitions can be developed to addressrepparttar 109525 new threat.

Anomaly Detection

CipherTrust’s IronMail utilizes a unique Anomaly Detection Engine (ADE), which dynamically identifies and responds to abnormal behavior in mail flow. By monitoring “normal” e-mail traffic rates acrossrepparttar 109526 Internet,repparttar 109527 ADE allows IronMail to identify spikes in traffic that are oftenrepparttar 109528 first signal of a malicious attack. Once these spikes are recognized, IronMail units take appropriate action to prevent infiltration ofrepparttar 109529 network.

CipherTrust is the leader in anti-spam and email security. Learn more by downloading our free whitepaper, “Next Generation Virus Protection: An Overview of IronMail Zero Day Virus Protection” or by visiting

Dealing With Spam

Written by Oswyn James

Continued from page 1

Another trick ofrepparttar spammers is those "unsubscribe lists" oh these are just another way of you volunteering your email address they do stop sending you one mail and start sending you another. So no more viagra, now they offer you cialis. lol

So what can you do. Block them I say. Just block them out usingrepparttar 109508 tools provided by your email programme, ISP or email service provider. Then get yourself a good spam programme. There are some good ones out there. Also reportrepparttar 109509 abuse especially if come s from a well known domain such as yahoo or google.

Help keep spammers at bay. They must be stopped!

Oswyn James is a webdesigner and the owner of a multimedia webdesign firm.

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