Dr.Web anti-spam beta-version released
January 15, 2007
Doctor Web, Ltd. announces the beta-testing of the new product protecting Windows workstations from viruses and unsolicited mail (spam). The mail filtering module SpIDer Mail® now integrates a spam filter based on Vade Retro® technology from Goto Software, a French company with more than 5 year experience in anti-spam development.
All users willing to try the new functionality of Dr.Web anti-virus can register as beta-testers and explore the advantages of the spam-filtering technology. SpIDer Mail, being as always light, efficient and transparent to the user, is now integrated with Vade Retro anti-spam filter, thus protecting the client's mailbox from not just dangerous but from unsolicited mails as well.
The anti-spam module has several advantages.
- The unique technology allowing to detect up to 97% of spam. Up to 80% of unsolicited e-mails are filtered by headers only, which increases substantially its productivity and decreases dependency of the anti-spam technology on the language of the message;
- compact anti-spam module – the size of the Dr.Web distribution size became heavier by 1 MB only;
- easy settings which can be understood even by computer beginners;
- ability to filter mail traffic immediately after it is installed and enabled, without any previous teaching of the anti-spam;
- support of POP3 and IMAP;
- independence from any mail client.
An anti-spam solution has been long awaited by many of Dr.Web users. To meet the market requirements,
finding a good anti-spam technology was not enough. It was really important to assure the cooperation
with a professional team which would guarantee a continuous customers support, with a real-time
reaction to numerous spammers tricks. It was also important to keep a certain technological balance
with a newly integrated technology to preserve some specific trends of Dr.Web Anti-virus -
compactness, simplicity, high technology level, computer resource sparing. Integration of
the Vade Retro anti-spam technology into Dr.Web Anti-virus for Windows did not break this balance.
"We plan to come out shortly with a highly efficient anti-spam solution
based on Dr.Web for Windows workstations. The results of the internal testing of
Vade Retro technology, both on servers and client stations proved that our choice
to establish a strategic partnership with Goto Software was the right one, - commented Boris Sharov,
the CEO of Doctor Web, Ltd. - The agreement we have recently signed with the French company
allows us to use the unique Vade Retro technology in practically all Dr.Web products designed
to protect E-mail messaging. We are sure that our users will appreciate the high technology level of
this anti-spam, the original approach to spam detection issue, the speed of reaction of the French
team to new waves of spam. What is the most important for us is that we saw in the French team a
truly professional attitude to the work they are dedicated to and their ability to promptly act
in their customers' interests."
Technical details
The anti-spam technologies used in new product by Dr.Web contain several thousands rules which can be divided into several groups.
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Heuristic analysis
Highly complicated intellectual technology of empirical analysis of all parts of messages: headers, message body, etc. Not only the message itself but its attachment, if any, is being analyzed. The heuristic analyzer is being constantly improving; new rules are being added to it.
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Counter-reaction
Counter-reaction technique is one of the most advanced and efficient technologies of Dr.Web anti-spam. It helps to counteract the tricks used by the spammers to outsmart anti-spam filters.
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HTML-patterns
The messages with HTML-codes included into them are compared with the list of known patterns from the library of HTML-patterns of the anti-spam. Such comparison in combination with the available data on the image sizes typically used by spammers helps protect users against spam messages with HTML-code, which often include online images.
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Semantic analysis
During the semantic analysis the words and phrases from the message are compared with the words and phrases typical for spam. The comparison is made against a predefined dictionary. The words, phrases and symbols are analyzed – both visible to the human eye and those masqueraded by the technical tricks of spammers.
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Anti-scamming technology
Scam (as well as pharming messages – a type of scam-messages) is the most dangerous type of spam. There we can name also the so-called “Nigerian” scams, loan scams, lottery and casino scams, false messages of banks and credit organizations. To filter scams a special module is used in Dr.Web anti-spam.
Anyone is welcome to test Dr.Web beta version. To download the beta version, you should first register in the Beta section of the web-site of Doctor Web, Ltd. More details about beta version and anti-spam filter can be found here.
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