Miasma campaign poisons 20-plus npm packages, hunts for developer secrets

The Miasma malware campaign has claimed another victim, poisoning more than 20 versions of legitimate npm packages used by the Leo Platform and RStreams ecosystems as its operators continue refining their self-propagating supply chain worm. Microsoft Threat Intelligence said in a post on X that the attack began late on June 24 after attackers compromised an npm maintainer account, "czirker," and used it to publish poisoned updates to more than 20 packages in a "coordinated, fully automated opera