https://www.bleepingcomputer.com/news/security/visa-warns-of-new-baka-credit-card-javascript-skimmer/

Visa issued a warning regarding a new JavaScript e-commerce skimmer known as Baka that will remove itself from memory after exfiltrating stolen data.

The credit card stealing script was discovered by researchers with Visa's Payment Fraud Disruption (PFD) initiative in February 2020 while examining a command and control (C2) server that previously hosted an ImageID web skimming kit.