GlassWorm

Trust Chains Broken at Scale While ClickFix Becomes a Service This week, attackers stopped trying to kick down the front door and instead walked in through the trust chains that hold digital ecosystems together. North Korea's Sapphire Sleet compromised over 140 Mastra npm packages through a single typosquatted dependency, stealing cryptocurrency wallets and planting persistent backdoors on developer machines. The GlassWorm group trojanized Open VSX extensions with WebAssembly malware that uses the Solana blockchain as an unkillable command channel, while SmartApeSG hijacked the Okendo Reviews widget to serve malicious prompts on thousands of e-commerce sites. Even vendor integrations became a liability: the Klue breach exposed Recorded Future client data through a compromised OAuth token connecting a marketing tool to Salesforce. Deception also became an industrial product. The ErrTraffic framework now operates as full Malware-as-a-Service, using blockchain smart contracts to hide its infrastructure and compromised WordPress sites to serve fake error prompts that trick users into running malicious commands. Attackers weaponized trusted AI platforms too—one campaign abused claude.ai's shared chat feature to deliver MacSync infostealer on macOS, while the shai_hulululud npm package uses prompt injection to blind AI-powered security scanners. On the infrastructure side, the FortiBleed campaign cracked credentials for over 73,000 FortiGate firewalls with a 45-GPU cluster, handing attackers valid keys to government and defense networks worldwide. Defenders should immediately hunt for the easy-day-js dependency in their npm projects, reset credentials on any FortiGate firewall, enable Azure AD Graph Activity Logs to close a years-long reconnaissance visibility gap in Microsoft cloud environments, and audit OAuth tokens on all third-party vendor integrations.

2026-06-166 minSockethigh

Threat researchers discovered GlassWASM, a WebAssembly-based malware distributed via trojanized extensions on the Open VSX marketplace. The malware uses ChaCha20 encryption to evade static analysis and leverages the Solana blockchain as a resilient C2 dead-drop to retrieve and execute OS-specific second-stage payloads via Node.js.

2026-06-105 minCrowdStrikehigh

The CrowdStrike 2026 Technology Threat Landscape Report highlights that the technology sector remains the primary target for both state-sponsored and eCrime adversaries. China-nexus actors focus on intellectual property theft and AI capabilities, while DPRK-nexus actors leverage fraudulent employment and open-source supply chain compromises (such as the Axios npm package). Additionally, eCrime groups are accelerating extortion operations and exploiting AI trends to distribute malware like macOS infostealers.

Session Hijacking and Developer Tool Poisoning Collapse Authentication Trust This week, attackers proved that multi-factor authentication is no longer a reliable gatekeeper. Campaigns like Tycoon 2FA and Chinese-language PhaaS platforms intercept one-time passwords in real time and steal session tokens to maintain persistent access, while infostealers like EKZ Infostealer harvest browser cookies to bypass authentication entirely. Even when victims reset passwords and revoke sessions, attackers retain access through hidden device registrations — meaning standard incident response playbooks are now incomplete. Developers remain the preferred entry point for supply chain compromise. The Glassworm botnet was disrupted after hiding malware in VSCode extensions and npm packages, while the Megalodon campaign poisoned GitHub Actions workflows across 5,500 repositories. A malicious Sicoob.Sdk NuGet package stole banking certificates from Brazilian developers, and North Korea's Lazarus group compromised the widely used axios npm library — a single attack touching millions of downstream applications. Organizations must move beyond password-and-MFA reliance: adopt hardware security keys, shorten session lifetimes, delete attacker-registered devices before resetting credentials, and audit developer toolchains and CI/CD pipelines for tampering.

2026-05-265 minCrowdStrikecritical

CrowdStrike, in collaboration with Google and Shadowserver, successfully dismantled the Glassworm botnet, a highly resilient threat targeting software developers. The threat actors utilized trojanized IDE extensions and malicious package dependencies to deploy GlasswormRAT, leveraging a complex C2 infrastructure spanning the Solana blockchain, BitTorrent DHT, and Google Calendar to maintain persistent access to developer environments.

2026-05-137 minSockethigh

The GlassWorm threat campaign has escalated its supply chain attacks on the Open VSX marketplace by publishing 73 impersonation 'sleeper' extensions. These extensions initially contain no malicious code to bypass security scans, but are later updated to act as thin loaders that retrieve and execute secondary .vsix payloads from GitHub releases using bundled native binaries or obfuscated JavaScript.

2026-05-135 minSockethigh

The GlassWorm malware campaign has evolved to deploy 'sleeper' extensions on Open VSX that are subsequently weaponized to download malicious VSIX payloads hosted on GitHub. The malware employs sophisticated evasion techniques, including Russian geofencing, source-to-compiled code mismatches, and utilizing the Solana blockchain as a dead-drop resolver for command and control, ultimately leading to arbitrary Node.js code execution across multiple developer IDEs.

2026-05-138 minSockethigh

The GlassWorm threat actor has evolved its supply chain attack methodology by abusing VS Code extension manifest fields to transitively deliver malicious payloads. This technique allows initially benign extensions to pull in malicious dependencies during later updates, executing staged JavaScript loaders that target developer workstations for credential and secret theft.