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. Baka features an advanced design indicating that it is the work of a skilled malware developer and it also comes with a unique obfuscation method and loader. Visa also shared a list of best practices for securing online stores as outlined by the PCI Security Standards Council.
Source: https://www.bleepingcomputer.com/news/security/visa-warns-of-new-baka-credit-card-javascript-skimmer/