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Thank you. Hello, everyone, and welcome to the Cyberwires Research Saturday. I'm Dave Bittner, and this is our weekly conversation with researchers and analysts

tracking down the threats and vulnerabilities, solving some of the hard problems and protecting

ourselves in a rapidly evolving cyberspace.

Thanks for joining us.

So Vectrio came to our attention in the same way that it came to others within the industry.

In particular, there were really large numbers of compromised websites, which when visitors went to them,

they would conditionally, meaning sometimes, redirect those people to a variety of scams.

So it was really originally about these compromised websites and then seeing that there was a common DNS theme within that.

That's Dr. Renee Burton, VP of threat intelligence at InfoBlocks.

Today we're discussing their work on Vex Trio,

a notorious traffic distribution system involved in digital fraud.

Well, you all describe Vex Trio as having its roots in spam and then evolving through scam tactics and eventually becoming part of malicious ad tech.

...