Trend Micro Incorporated (TSE: 4704), a leader in network antivirus and content security software and services, today announced the accelerating infection over the weekend in Italy of seemingly legitimate web pages loaded with malicious code that could plant a keylogger to steal user passwords, or turn computers into proxy servers for various other attacks. Trend Micro data indicates that tens of thousands of users worldwide have already accessed compromised urls, oblivious to the threat as a result of their natural web surfing activity. The initial HTML malware takes advantage of a vulnerability in so-called “iFrames” that are commonly used on websites and commonly exploited. Trend Micro researchers believe it was initially probably an automated attack, created from a computer Trojan-making kit.

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