Sarah Mitchell, Author at Phoenix Security

Author: Sarah Mitchell

easy-day-js / EASY_DAY_JS_MASTRA_2026: Typosquatted Dependency Delivers Cross-Platform RAT to 144 npm Packages

A typosquatted npm dependency called easy-day-js — an exact metadata clone of the legitimate dayjs library — was injected across 144 @mastra packages in an 88-minute automated publishing window, reaching over 1.1 million weekly downloads. The second-stage payload is a cross-platform RAT that installs OS-level persistence on Windows, macOS, and Linux and targets LLM API keys, cloud credentials, and 166 cryptocurrency wallet extensions. No CVE was assigned; every CVE-based scanner was blind during active exploitation.

TrapDoor Supply Chain Campaign: Cross-Ecosystem Credential Theft and AI Assistant Poisoning via npm, PyPI, and Crates.io

TrapDoor is an active supply chain campaign hitting npm, PyPI, and Crates.io simultaneously — 34 malicious packages, 384 artifact versions, confirmed since May 19, 2026. The campaign steals SSH keys, AWS credentials, GitHub tokens, and crypto wallet keystores, while silently poisoning AI coding assistants through hidden zero-width Unicode injected into .cursorrules and CLAUDE.md files. Zero CVEs assigned. Standard scanners return zero findings.

MEGALODON_CI: Automated GitHub Actions Workflow Poisoning and CI/CD Credential Harvesting at Scale

MEGALODON_CI is an active zero-CVE campaign poisoning GitHub Actions workflow files across 3,500+ confirmed public repositories. Automated commits inject a base64-encoded credential harvester that exfiltrates AWS, GCP, and Azure secrets, OIDC tokens, SSH keys, and package registry credentials in a single runner execution. No CVE exists — every traditional scanner is blind to it.