Malvertising campaigns are becoming harder to detect

The techniques used by attackers are difficult even for security researchers to study

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IDGNS

Jerome Segura, a senior security researcher with Malwarebytes, was recently stumped by a cyberattack he was studying. It seemed to keep vanishing.

Segura often studies malvertising, which involves seeding ad networks with harmful online advertisements that then appear on websites, potentially delivering malware to a person's computer.

It's a particularly insidious type of attack, since a person merely has to view an advertisement to become infected if their computer has a software vulnerability. 

"We knew there was something different that malvertisers were doing," said Segura in a phone interview Thursday.

The problem was they couldn't replicate the attack by viewing the malicious ad. It's almost as if the attackers knew they were being watched.

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