Mastra Infostealer Dropped Files Detection
Detects the core payload components dropped by the malicious easy-day-js npm package, which is an infostealer affecting developers and CI/CD environments. The rule specifically looks for the creation or modification of 'protocal.cjs' and 'config.json' within a hidden 'NodePackages' directory located in 'C:\ProgramData\', a technique used to masquerade as legitimate Node.js tooling.
Microsoft Sentinel (KQL)
