New Trojan Sends Spam
An ingenious new Trojan is circulating that hijacks PCs and uses them to send SMS-based spam to mobile phones. After a PC has been infected, the Delf-HA Trojan contacts a Web site for details on which spam campaign to run and then randomly generates a series of Russian mobile numbers beginning with the prefix +7921 or +7911. It uses the "send e-mail" function of a number of Russian mobile network Web sites to actually deliver the mail sent from the infected machines.
That many of the numbers will not have been allocated to customers is of no consequence as enough real ones can be targeted randomly. The contents of the spam are believed to vary but one message shown to Techworld appeared to promote the download of MP3 music files from a named Russian Web site.
