Fake security tools still big threat, worms on rise

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The No. 1 offender to Canadian's PCs in the first half of 2009 was Win32/ZangoSearchAssistant, adware that victims probably don't even know hit them, according to a recent security report from Microsoft Corp.

ZangoSearchAssistant tricks unsuspecting users into downloading it in the guise of improving search results and producing related links based on user-specific keywords, explained Mohammad Akif, security and privacy lead with Microsoft Canada Co.

"You might think what a stroke of luck, I was just searching for Michael Jackson earlier, and now this offer is popping up," said Akif. But in reality, the related links are companies in ZangoSearchAssistant's network.

Most of the Top 25 security threats listed in the seventh version of the Microsoft Security Intelligence Report (SIRv7) are consumer threats, but those of importance to the enterprise include ASX/Wimad and Win32/Renos, said Akif.

Both Trojans, Wimad and Renos have had a presence in the enterprise for some time, as have others, said Akif. "That is the biggest category from an enterprise perspective," he said.

Wimad, for instance, positions itself as a Windows media file, tricking users into downloading it.

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