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1915 articles · page 40 of 96

The Refund Fraud Economy Exploiting Retailers and Payments

🔍 Flare's analysis of fraud-focused communities reveals an organized underground market selling refund methods, tutorials, and operational services that exploit retailer and payment-provider workflows. Actors advertise step-by-step techniques—such as refund without return, chargeback abuse, goods swapping, and empty-box returns—while offering operators on commission. High-volume targets include Amazon, PayPal, Apple, and major retailers; tutorials typically sell for $50–$300. Researchers urge stronger intelligence sharing, refined controls, and continuous monitoring to close operational gaps.
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AI and Automation Accelerate Exploitation in 2025

🔍 Rapid7's 2026 Global Threat Landscape Report finds AI and automation compressed the window between vulnerability disclosure and exploitation in 2025, turning what once unfolded over weeks into days or even minutes. The median time to inclusion on CISA's Known Exploited Vulnerabilities catalog fell from 8.5 days to five, and the mean dropped from 61 to 28.5 days. Confirmed exploitation of CVSS 7–10 flaws rose 105% YoY to 146 incidents, with deserialization, authentication bypass and memory corruption among the most targeted issues. Rapid7 urges CISOs to adopt pre-emptive security that reduces attack surface, prioritizes material risk and improves contextual detection and response.
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Telegram Crackdown 2026: Why Cybercriminals Adapt and Persist

🔎 In early 2026 Telegram intensified enforcement after the late‑2024 arrest of CEO Pavel Durov and a year of stricter moderation in 2025. Millions of channels were taken down, bans and automation grew, and platform transparency reached new highs. Despite these measures, cybercriminal ecosystems on Telegram have not shrunk; they have rapidly adapted through fragmentation, private groups, automated tooling and alternative hosting. Check Point's Exposure Management intelligence highlights these shifts and explains why takedowns have reduced visibility but not eliminated illicit activity.
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Claude Code Security and Magecart: Where Tools Stop

🛡️ This report explains why a Magecart skimmer that hid its payload inside a favicon's EXIF metadata can evade repository-focused scanners. Claude Code Security inspects source code and repo artifacts, so it cannot observe malicious scripts injected through third‑party CDNs, tag managers, or images that only execute in users' browsers. The observed attack used a multi‑stage loader to assemble a URL, parse binary image metadata, and execute the extracted payload at checkout, silently exfiltrating payment data. The piece argues that runtime monitoring and stronger supply‑chain governance are essential complements to static analysis.
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Vidar Stealer 2.0 Delivered via Fake Game Cheats on GitHub

🎮 Acronis TRU found hundreds of GitHub repositories posing as "free" game cheats that deliver the Vidar 2.0 infostealer, warning the true number of malicious repos could be in the thousands. Campaigns begin in game-focused Discord and Reddit communities and use PS2EXE-compiled PowerShell loaders to evade basic detections. Loaders add Windows Defender exclusions, fetch secondary payload URLs from Pastebin linking to GitHub-hosted binaries, and deploy a Themida-packed Vidar executable that establishes persistence via scheduled tasks. The payload then harvests credentials, tokens and files and exfiltrates them through C2 infrastructure masked by Telegram bots and Steam dead-drop resolvers.
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BSI Criticizes Healthcare Software Security Practices

🔒 The Federal Office for Information Security (BSI) has warned that software used in medical practices, clinics and long-term care needs stronger protections to safeguard sensitive patient data. In tests of standard configurations, the agency described the IT security of healthcare software as in need of improvement, finding chains of vulnerabilities in three of four representative practice management systems that could be exploited from the Internet. Outdated encryption algorithms were specifically cited; manufacturers were informed and issued timely fixes.
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Over Half of UK Firms Hit by Nation-State Cyber Attacks

🛡️ The 2026 Armis Cyberwarfare Report found that 54% of UK companies experienced nation-state attacks last year, up from 47% previously. Based on interviews with 1,900 IT decision-makers (including 500 in the UK) and Armis Labs data, the study highlights growing fear over AI-powered threats and the weakening deterrent effect of "mutually assured disruption." Respondents identified Russia, China and North Korea as the greatest risks.
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APIs Now Dominant Attack Surface as Incidents Surge

🔒 Akamai’s 2025 State of the Internet report finds APIs have become the dominant attack surface, with an average of 258 API attacks per organization (up 113% year‑on‑year). The vendor reports 61% of attacks involved unauthorized workflows or abnormal behavior, signaling a shift towards behavior‑based exploitation. Top exploited issues included security misconfigurations, broken object property level authorization and broken authentication. Akamai also warns that agentic AI and automation are amplifying the risk of sensitive data exposure across APIs.
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UK Cyber Monitoring Centre Plans US Expansion by 2027

🌐 One year after its 2025 founding, the UK-based Cyber Monitoring Centre (CMC) is preparing to establish a US counterpart to quantify the economic and financial impact of major cyber incidents using its 0–5 category scale. In 2025 the CMC analysed two major events — the Marks & Spencer/Co‑op disruption (Category 2; estimated loss £270m–£440m) and the Jaguar Land Rover attack (the costliest, £1.6bn–£2.1bn). The nonprofit says it will appoint a US technical committee, set up a legal entity, run an incubation period to adapt its data-analytics methodology for the US economy, and expects formal establishment in 2027.
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Boggy Serpens Threat Assessment: Evolving TTPs and Tooling

🔒Boggy Serpens (aka MuddyWater) is a persistent Iranian cyberespionage group that has shifted from noisy spear phishing to tailored, long-term intrusion campaigns targeting diplomatic, maritime, energy and financial sectors. The actor exploits hijacked trusted accounts and blurred-document macros to bypass reputation filters and deploys AI-assisted and Rust-based implants such as BlackBeard, LampoRAT, UDPGangster and Nuso. Defenders should enforce strict macro controls and layered protections including Cortex XDR and Advanced WildFire to detect behavioral anomalies and limit long-term persistence.
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Evolution of Iranian Cyber Threats and Identity Risks

🔒 Iranian-aligned threat actors are shifting from bespoke destructive wipers to weaponizing privileged identities and native management features. Rather than deploying novel binaries, attackers compromise high-privilege accounts and use legitimate MDM/RMM or cloud consoles to push remote-wipe and factory-reset commands at scale. This living-off-the-land approach bypasses traditional endpoint telemetry and enables rapid, high-impact disruption across managed tenants. Defenders must prioritize identity resilience, Zero Trust, and immutable backups to maintain survivability.
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Global Rise in Fake Shipment Tracking Scams — 2025 Update

📦 Group-IB reports a rapid global escalation of fake shipment tracking scams during 2025, jumping from almost no activity in 2024 to more than 100 unique campaigns per month and peaks of 218 and 208 in June and December. Attackers use disposable and lookalike domains, SMS sender spoofing, local-looking numbers and URL masking to trick recipients into providing credentials or paying bogus fees. Many phishing sites share infrastructure linked to the Darcula PhaaS, which offers thousands of counterfeit domains and templates. The report urges organisations to strengthen domain authentication and increase customer alerts.
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Ransomware TTPs and Shifting Threat Landscape — 2025

🔐 GTIG and Mandiant analysis of 2025 ransomware activity shows a shift toward greater data-theft-extortion and targeting of virtualization despite declining overall profitability for operators. Exploitation of VPNs and firewalls, increased abuse of legitimate tools and cloud services, and more aggressive extortion tactics produced a record number of data-leak-site postings. REDBIKE was the most frequently observed family, and defenders saw drops in Cobalt Strike and RMM reliance. Recommended actions include patching perimeter devices, hardening virtualization, improving backup resiliency, enforcing credential hygiene, and monitoring for anomalous data egress.
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Possible Quantum Speedup for Factoring: Skeptical View

🔬 The author expresses skepticism and notes they are not qualified to fully evaluate a newly announced claim of improved quantum factoring. If validated, the finding would represent a theoretical improvement in the speed of factoring large integers with a quantum computer. The post emphasizes that the result is currently unverified and that practical consequences for deployed cryptography remain uncertain. Further expert review, replication, and analysis are necessary to determine any real-world impact.
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ClickFix Lures Evolve to Deploy New In‑Memory Infostealers

🔒 Researchers warn that criminals have scaled ClickFix social-engineering lures to deliver sophisticated, fileless infostealers via compromised WordPress sites. Rapid7 observed a campaign active since December 2025 that leveraged fake Cloudflare CAPTCHA prompts across more than 250 WordPress domains in 12 countries to trick victims into running obfuscated commands. The chain deploys an in-memory loader called DoubleDonut that injects payloads into legitimate Windows processes, and analysts also observed novel .NET and C++ stealers alongside a new Vidar variant. Microsoft noted a separate campaign that pivots from the Run dialog to Windows Terminal for execution.
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New ClickFix Variant Uses WebDAV and Trojanized Electron App

🔎 Atos researchers disclosed a ClickFix variation that leverages the Run dialog to execute a 'net use' command, map a remote WebDAV share, and run a hosted batch file. The chain downloads a ZIP that unpacks a trojanized WorkFlowy Electron app whose app.asar contains an obfuscated main.js acting as a persistent C2 beacon and dropper. The campaign evaded Microsoft Defender for Endpoint and was detected through targeted hunting of RunMRU registry activity.
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Hybrid Resilience: Incident Response Across Mixed Stacks

🔁 This article prescribes an operational model for predictable incident response across mixed on‑prem, cloud and SaaS environments. It argues for a shared incident language — a compact contract of rules and artifacts (severity by customer impact, one hypothesis, one timeline, named owners) — enforced via a single incident channel with an incident commander and domain leads. The author recommends portable telemetry in three layers: user journeys as the court of record, cross‑environment correlation IDs and strict clock discipline, plus a single change table. Practical escalation engineering (one‑page provider cards, time to human targets and a rollback/failover decision matrix) closes vendor and operations gaps.
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Reflections on Diversity, Threats, and Cyber Guidance

🔒The author opens this week’s Threat Source newsletter with personal reflections on being raised by a single mother, connecting those experiences to the gender imbalance in STEM and cybersecurity. He cites sobering statistics — for example, women comprise 28.2% of the global STEM workforce and occupy only 16% of CISO roles — and highlights mentorship programs like WiCyS and CTFs. Talos also summarizes a March 10 update on cyber activity tied to the Middle East conflict and provides practical defensive advice for destructive malware, DDoS, and website defacement.
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Rust-based VENON banking malware targets 33 banks in Brazil

🛡️ Brazilian cybersecurity firm ZenoX disclosed a Rust-based banking trojan named VENON that targets Windows users and 33 financial and digital-asset platforms. The threat chain uses DLL side-loading and a PowerShell-delivered ZIP to drop a malicious DLL that performs nine evasion techniques (anti-sandbox checks, indirect syscalls, ETW and AMSI bypasses) before executing payloads. VENON fetches configuration from Google Cloud Storage, installs a scheduled task, and connects to a WebSocket C2 while employing banking overlays, active window monitoring, and an Itaú-specific LNK hijack implemented via embedded VBS; it also supports a remote uninstall to restore altered shortcuts. ZenoX noted the Rust code reflects knowledge of Latin American trojans and appears to have been rewritten or expanded with the aid of generative AI.
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Fake AI Agent Ads Deliver AMOS and Amatera Infostealers

🔒 Kaspersky researchers uncovered malicious Google Search ads that mimic documentation for popular AI assistants (for example, Claude Code, OpenClaw and Doubao) to trick users into running installer commands. The fake guides prompt victims to execute commands that deploy AMOS on macOS (via curl) or the Amatera infostealer on Windows (via mshta.exe), which exfiltrates browser data, crypto-wallets and files to a remote server. Organizations should warn staff, centrally manage access to AI tools and maintain endpoint protections.
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