Silent Skimmer: A Year-Long Web Skimming Campaign Targeting Online Payment Businesses
Oct 02, 2023
Webb Security / Payment Security
A financially motivated campaign has been targeting online payment businesses in the Asia Pacific, North America, and Latin America with web skimmers for more than a year. The BlackBerry Research and Intelligence Team is tracking the activity under the name Silent Skimmer , attributing it to an actor who is knowledgeable in the Chinese language. Prominent victims include online businesses and point-of-sale (PoS) service providers. "The campaign operators exploit vulnerabilities in web applications, particularly those hosted on Internet Information Services (IIS)," the Canadian cybersecurity firm said . "Their primary objective is to compromise the payment checkout page, and swipe visitors' sensitive payment data." A successful initial foothold is followed by the threat actors leveraging multiple open-source tools and living-off-the-land (LotL) techniques for privilege escalation, post-exploitation, and code execution. The attack chain leads to the deploy...