The Yahoo advertisement network has been selected by cybercriminals to carry out a malvertising type of attack on unsuspecting users, by steering them to malicious pages serving a strain of CryptoWall ransomware.
When the users click on an advertisement that is connected to the crooks server, they are directed to a web page that delivers malicious files, compromising the computer.
Chris Larsen, security researcher at Blue Coat Systems, says that at a first look, the malvertising campa…
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