The second PIN unlocks an interaction menu on the ATM that gives attackers control over the cash dispenser. Another option on the menu allows criminals to uninstall the malware in a way that securely wipes it and makes it hard for forensics teams to later recover it.
"We believe we are seeing the dawn of a new criminal industry targeting ATMs with only more to come," the Proofpoint researchers said. "In order to stay ahead of attackers financial entities should reexamine existing legacy security layers and consider deploying modern security measures to thwart these threats."
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