Microsoft Warns of Web Skimmers Mimicking Google Analytics and Meta Pixel Code

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Threat actors behind web skimming campaigns are leveraging malicious JavaScript code that mimics Google Analytics and Meta Pixel scripts in an attempt to sidestep detection.

"It's a shift from earlier tactics where attackers conspicuously injected malicious scripts into e-commerce platforms and content management systems (CMSs) via vulnerability exploitation, making this threat highly evasive to traditional security solutions," Microsoft 365 Defender Research Team said in a new report.

Skimming attacks, such as those by Magecart, are carried out with the goal of harvesting and exporting users' payment information, such as credit card details, entered into online payment forms in e-commerce platforms, typically during the checkout process.

This is achieved by taking advantage of security vulnerabilities in third-party plugins and other tools to inject rogue JavaScript code into the online portals without the owners' knowledge.