Mpack tool.
A tool called Mpack is being used to compromise large numbers of legitimate websites and place spyware on them. At least, that is the general consensus of security companies including Symantec, Trend Micro and Kaspersky Lab.
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Symantec has created a nice little video (below) that demonstrates what happens to a victim’s PC when it visits a compromised site.
[Video no longer available]
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