All news with #web skimming tag

🔒 Silent Push has uncovered a long-running Magecart web‑skimming campaign, active since around 2022, that loads highly obfuscated JavaScript from bulletproof hosting and targets six major card networks including American Express, Mastercard and UnionPay. The skimmer operates client-side, injecting an iframe to display a convincingly styled fake payment form that captures cardholder and shipping details before restoring the original form. Silent Push links parts of the infrastructure to domains hosted by a sanctioned/bulletproof provider and recommends measures such as Content Security Policy, PCI DSS adherence, timely CMS/plugin updates, enforced MFA and incognito-mode testing to detect stealthy injections.

🛡️ Web security in 2025 shifted rapidly as AI-enabled development and adversaries outpaced traditional controls. Natural-language "vibe coding" and compromised AI dev tools produced functional code with exploitable flaws, highlighted by the Base44 authentication bypass and multiple CVEs affecting popular assistants. At the same time, industrial-scale JavaScript injections, advanced Magecart e-skimming, and widespread privacy drift impacted hundreds of thousands of sites and thousands of financial sessions. Defenders moved toward security-first prompting, behavioral monitoring, continuous validation, and AI-aware controls to reduce exposure.

🛡️ A malicious Chrome extension named Crypto Copilot was found injecting covert Solana transfers into Raydium swap transactions, diverting funds to an attacker-controlled wallet. Published by "sjclark76" on May 7, 2024, the add-on remains available on the Chrome Web Store with 12 installs. The extension appends a hidden SystemProgram.transfer to each swap before signature, charging a minimum of 0.0013 SOL (and applying a 2.6 SOL/0.05% rule) while obfuscating its code to evade detection. It also contacts backend domains to register wallets and report activity, giving a false veneer of legitimacy.

🔐 In episode 440 Graham Cluley and guest Scott Helme examine an unusual insider exploitation where Romanian prison self‑service web kiosks let inmates access and alter records. They also explore the growing threat of third‑party JavaScript on checkout pages and how the updated PCI DSS aims to curb Magecart‑style skimmers. Plus, the hosts cover automation with Keyboard Maestro and video creation using Screen Studio.

🔍 Hidden blocks of links embedded on corporate websites can quietly erode search rankings and damage reputation by pointing to dubious domains such as pornography or gambling. Invisible to users but parsed by search engines and security tools, these links divert link equity and often trigger algorithmic penalties. Attackers inject them via compromised admin credentials, vulnerable CMS components, infected templates, or breached hosting. Regular updates, strict access controls, routine audits, backups, and mandatory 2FA help prevent and limit impact.

🪙 Google Threat Intelligence Group links a financially motivated actor, UNC5142, to widespread compromises of WordPress sites that leverage EtherHiding and on-chain smart contracts to distribute information stealers such as Atomic, Lumma, Rhadamanthys and Vidar. The campaign injects a multi-stage JavaScript downloader (CLEARSHORT) into plugins, themes and databases to query malicious BNB Smart Chain contracts, which return encrypted landing pages that use ClickFix social engineering to trick Windows and macOS users into executing stealer payloads. Google flagged roughly 14,000 infected pages through June 2025, and observed a move to a three-contract proxy-like architecture since November 2024 that improves agility and resistance to takedown.

🔐 Since late 2023, Mandiant and the Google Threat Intelligence Group tracked UNC5142, a financially motivated cluster that compromises vulnerable WordPress sites to distribute information stealers. The actor's CLEARSHORT JavaScript loader uses Web3 to query smart contracts on the BNB Smart Chain that store ABIs, encrypted landing pages, AES keys, and payload pointers. By employing a three-contract Router-Logic-Storage design and abusing legitimate hosting (Cloudflare Pages, GitHub, MediaFire), operators can rotate lures and update payload references on-chain without changing injected scripts, enabling resilient, low-cost campaigns that GTIG found on ~14,000 injected pages by June 2025 and which showed no on-chain updates after July 23, 2025.

⚠️ The article warns that unmonitored JavaScript on e-commerce sites is the single biggest holiday security risk, enabling attackers to steal payment data while server-side defenses like WAFs and intrusion detection systems remain blind. It reviews major 2024 incidents, including the Polyfill.io and Cisco Magecart campaigns, and highlights a dramatic uptick in attacks during peak shopping windows. Recommended mitigations emphasize closing visibility gaps with real-time client-side monitoring, maintaining strict third-party script inventories, and deploying Content Security Policy (initially in report-only mode) using nonces rather than weakening directives.

🔒Payment iframes are no longer a guaranteed sandbox: attackers have adopted pixel-perfect overlays and other injection techniques to steal card data from checkout pages. The article dissects the August 2024 Stripe skimmer campaign that compromised dozens of merchants and used a deprecated API to validate stolen cards in real time. It explains why legacy controls like X-Frame-Options and basic CSP fail when the host page is compromised and outlines a practical six-step defense combining strict CSP, real-time DOM monitoring, secure postMessage handling, and tooling changes required by PCI DSS 4.0.1.

🔒 A rapid open source response contained a supply-chain compromise after maintainer Josh Junon (known as 'qix') reported his npm account was hijacked on September 8. Malicious versions of widely used packages including chalk, strip-ansi and color-convert were published embedding an crypto-clipper that swaps wallet addresses and hijacks transactions. The community and npm removed tainted releases within hours, limiting financial impact and exposure.

🔍 Cybersecurity researchers have flagged a technique dubbed Grokking that attackers use to bypass X's promoted-ads restrictions by abusing the platform AI assistant Grok. Malvertisers embed a hidden link in a video's "From:" metadata on promoted video-card posts and then tag Grok in replies asking for the video's source, prompting the assistant to display the link publicly. The revealed URLs route through a Traffic Distribution System to drive users to fake CAPTCHA scams, malware, and deceptive monetization networks. Guardio Labs observed hundreds of accounts posting at scale before suspension.