As businesses and home users have become increasingly savvy about traditional threats delivered via e-mail attachments, criminals are finding new ways to lure end users to consume their attacks, according to the report.
Researchers specifically cited a growth in the number of threats that use spam e-mail messages or IMs to distribute links to Web sites where malware or spyware is secretly downloaded to end users’ computers.
Criminals are also using data garnered from PCs already infected with their botnet virus code to refine their other spam and spyware efforts, said Paul Wood, senior analyst with New York-based MessageLabs. The attack uses a phishing e-mail in an attempt to persuade PayPal customers to call a phony customer service call center where they are asked to disclose personal information including their credit card details by an automated voice system. Using other common forms of converged attacks, criminals are creating Web sites that distribute small “dropper” malware files that secretly infiltrate PCs and later deliver larger Trojan viruses.
Botnet operators are also becoming more sophisticated, using spyware loaded onto the machines they control to garner personal information that can be used to help target other attacks, MessageLabs said.
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