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Email spam has tripled in just a week!

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June 25, 2008

According to some reports from various Internet security agencies, the volume of malicious e-mail spam in circulation has more than tripled in just a single week, and the so-called Srizbi botnet is largely to blame. And things appear to be getting worse by the day. Just two weeks ago, this kind of malicious email spam and email malware accounted for about only three percent or less of the total spam traffic monitored.

The various assortment of malicious spam you might expect to encounter will come complete with social engineering concepts designed to specifically lure the unsuspecting computer victim into believing the harmful is, well, harmless... (!)

Whatever the bait, the line is almost always the same. A link to a site hosting the disguised malware that will execute itself on a computer and that can cause (in some reported cases) some significant damage...

It is strongly believed by many Internet security experts that that executable is highly likely to have something to do with the so-called Srizbi botnet. According to Phil Hay, Lead Threat Analyst with Marshal's TRACE team "the Srizbi botnet is behind much of this increase in malicious spam.

Srizbi's criminal controllers are currently on a major expansion drive! The more computers infected by Srizbi bots the more money they can make.

It it totally appalling to this happening right before your screen or your very own eyes."

TRACE says that the most common campaign Srizbi is employing right now is what they refer to as a 'stupid' theme.

This attempts to hook the user by including the first part of their email address in the subject line, which is appended with a suggestion that they have done something stupid. Davey Winder you have been caught naked on video, for example... (!)

Perhaps slightly more understandable is the social networking methods also being used by Srizbi right now.

For example, this new 'trend' targets Classmate.com users by using their own name in malicious e-mail spam with subject lines such as "You have one new message. Classmates" or... "Friends waiting for you Tomorrow! Classmates".

Some observers say that these recent events are troublesome and Internet Security.ca strongly agrees with them. Email spam has been a growing problem for many years now and the time to act is now.

Our hats go off to two Web hosting companies that we have identified and that have declared war on all forms of spam. They are Avantex and Sun Hosting, both from Canada, and both very strongly engaged in reducing email spam by a significant measure.

These two hosting companies have invested and continue to invest massively in new hardware and software that greatly reduces email spam to a more manageable level. Both companies use the popular Spam Assassin software application on all their servers, and they have noticed significant reductions in all forms of email spam, in some cases up to 90 percent less.

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Source: Tech Blog.

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