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A Magecart campaign uses EtherHiding techniques to perform card-skimming on e-commerce platforms. Attackers compromise legitimate online storefronts, mainly WooCommerce, but also PrestaShop, Magento, and WordPress sites, injecting malicious loaders disguised as Google Tag Manager code. The skimming payloads are staged inside Ethereum blockchain smart-contract storage, making detection more difficult. Over 40 websites across 15 countries have been impacted since April 2026. The infrastructure involves 144 Sepolia contracts controlled by a single wallet, with 20 distinct contracts and skimmer-hosting domains identified. The malicious code appears as normal analytics but steals credit card data from shoppers.

This campaign represents a sophisticated card-skimming operation targeting e-commerce platforms by combining client-side payment skimming with EtherHiding, a technique that stages malicious payloads inside Ethereum blockchain smart-contract storage. Attackers compromise legitimate online storefronts, primarily WooCommerce, but also PrestaShop, Magento, and WordPress sites, injecting a loader disguised as Google Tag Manager code. The infrastructure includes 144 Sepolia blockchain contracts controlled by one wallet, with 20 distinct contracts and associated skimmer-hosting domains identified in network traffic. The malicious code is hidden server-side to appear as ordinary analytics plumbing while exfiltrating credit card information from unsuspecting shoppers. This approach leverages blockchain storage to evade traditional detection methods and maintain persistence.

Detailed information about Skimming on the Blockchain: A Magecart Campaign That Uses EtherHiding, Found by Malvertising Scanning. Get real-time updates, technic

Skimming on the Blockchain: A Magecart Campaign That Uses EtherHiding, Found by Malvertising Scanning - Live Threat Intelligence - Threat Radar | OffSeq.com

Skimming on the Blockchain: A Magecart Campaign That Uses EtherHiding, Found by Malvertising Scanning

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