Microsoft Threat Intelligence discovered a large-scale npm supply chain attack compromising over 140 packages in the mastra and @mastra scopes. The attack originated from takeover of the ehindero npm maintainer account, which published poisoned package versions introducing easy-day-js, a malicious typosquat of the popular dayjs library. The malicious package executed a postinstall hook that deployed an obfuscated dropper script, disabled TLS certificate verification, contacted command-and-control infrastructure at 23.254.164.92 and 23.254.164.123, and downloaded a second-stage payload. This 41KB cross-platform Node.js implant installed persistence mechanisms, performed cryptocurrency wallet inventory, exfiltrated browser history and host reconnaissance data, and on Windows performed reflective .NET assembly injection for fileless in-memory code execution. Any developer workstation or CI/CD pipeline executing npm install after compromise was potentially exposed regardless of code usage.
BlueKit operates as a mature commercial Phishing-as-a-Service platform offering 87 ready-made phishing kits targeting banks, cloud services, cryptocurrency exchanges, and global brands. The platform features subscription-based access, automated account takeover capabilities, peer-to-peer infrastructure for stealth, and integrated anti-detection tooling. BlueKit supports credential harvesting, session hijacking, and automated post-compromise workflows including password resets and passkey enrollment. The platform includes bulk SMS phishing capabilities, Telegram notifications, hardware wallet seed phrase harvesting, and integration with anti-detect browsers. Operating through Tor and clearnet domains with cryptocurrency payments, BlueKit employs a reseller model enabling white-label redistribution. The platform significantly lowers technical barriers for cybercriminals while providing enterprise-grade phishing infrastructure, posing critical threats to financial institutions, cloud environments, and cryptoc...