Claude Code leak used to push infostealer malware on GitHub

Threat actors exploited a March 31 accidental leak of Claude Code's source code (a terminal-based AI agent from Anthropic) by creating fake GitHub repositories that deliver Vidar infostealer malware to users searching for the leaked code. The repositories use search engine optimization to appear in Google results and trick users into downloading a malicious executable that deploys information-stealing and network-proxying tools.