Researchers at German cybersecurity company Nebty have identified “DoppelCart,” a cluster of almost 119,000 domains linked to copied online stores.
The researchers describe it as the largest publicly documented fake-shop network by associated domain count. They found 118,787 .shop domains in the cluster, representing 2.72% of the .shop top-level domain (TLD) population they examined.
The operation copies legitimate retailers’ product catalogs, descriptions, branding, and images, sometimes even loading images directly from the real companies’ infrastructure.
As we have reported in the past, AI-powered website builders make it easy to clone major brands. However, Nebty’s findings are based on shared website and infrastructure characteristics, rather than evidence that every domain is operated by a single identified group.
BleepingComputer reports an important checkout-level detail: 96% of confirmed DoppelCart shops reportedly shared identical build files and used just 27 ecommerce backends.
The fake shops mimic more than 44,000 brands, with a median of two clones for each brand.
“However, some brands like SodaStream, Velasca, CurrentBody, Daniel Wellington, Dreame, Horze, MOVA, and SPARK PAWS received more attention, with over 30 shops each.”
Nebty observed advertised discounts of up to 65%, a tactic designed to encourage shoppers to act before closely checking the domain, company details, or payment process.
The fraudulent checkout pages collect cardholder data and transmit it to attacker-controlled servers over WebSockets in real time. That may include card numbers, expiry dates, CVVs (card verification values), billing information, and even one-time confirmation codes issued by banks.
Capturing an authentication code in real time can help criminals to complete a payment while the victim is still going through the checkout flow.
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