Trojan attacks are trying to take advantage of the US Fourth of July celebrations.
E-mail and internet content security provider Marshal is warning e-mail users to be wary of malicious spam messages playing off today’s American day of independence.
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Marshal has identified a new wave of greeting card spam that invites recipients to retrieve a 4 July greeting card that someone has sent them.
The recipient is asked to click on a web link in the message to access their greeting card. By doing so, they expose themselves to vulnerability exploits and an executable file named "ecard.exe".
This is in reality a copy of the Storm Trojan which compromises the user's PC and merges it into a botnet - a network of computers that can be commandeered remotely by a controlling server.
The Storm Trojan first appeared in January 2007. It quickly gained success and notoriety by using the guise of current affairs headlines to fool unsuspecting recipients into clicking on a link which lead to the Trojan.
Examples of the headlines used included, "Saddam Hussein alive!" and "Chinese missile shot down by USA aircraft".
"Today's run of the Storm Trojan using the Fourth of July as its hook continues the theme of exploiting current events to entice unsuspecting e-mail users into infecting themselves," said Marshal's director of product management, Bradley Anstis.
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