Pump-and-dump spammers turn to PDFs

Summary:Anti-virus researchers at McAfee are reporting a massive wave of "pump-and-dump" stock spam -- with a interesting twist.

Anti-virus researchers at McAfee are reporting a massive wave of "pump-and-dump" stock spam -- with a interesting twist.

Instead of attaching image (.gif) files touting the penny stock, the spammers are now using PDF files with randomly generated subject lines, sender names and blank message bodies.

Pump-and-dump spammers turn to PDFs

McAfee's Nick Kelly said the appearance of PDF-based spam makes sense for the spammers because the automation of PDF files is easier than other documents formats.

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Topics: Security

About

Ryan Naraine is a journalist and social media enthusiast specializing in Internet and computer security issues. He is currently security evangelist at Kaspersky Lab, an anti-malware company with operations around the globe. He is taking a leadership role in developing the company's online community initiative around secure content managem... Full Bio

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