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Visa Warns of Attack Involving Mix of POS Malware

October 5, 2020

In May and June 2020, the company analyzed malware variants used in independent attacks on two North American merchants, one of which employed a TinyPOS variant, while the other involved a mix of malware families such as MMon (aka Kaptoxa), PwnPOS, and RtPOS.

As part of the first attack, phishing emails were sent to a North American hospitality merchant’s employees to compromise user accounts, including an administrator account, and legitimate administrative tools were used to access the cardholder data environment (CDE) within the network.

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