As anyone with an inbox can attest, spam is one of the most prolific problems on the Internet today. In order to avoid detection and pass successfully through filters, spam has become increasingly sophisticated. But with its increased presence on the Internet, comes an increase in the use of malicious links, pdf, xls and mp3 spam. Starting in late 2007, this spam ran messages that advertised "adult dating" or "extreme dating" Web sites. Both the content of the message and the Web site that it links to contained extremely graphic and explicit images.

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