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npm · Malicious package advisory

Malware

message-compiler

MAL-2026-14392

Malicious code in message-compiler (npm)

Details


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## Source: amazon-inspector (f7469b2a666f71db1dd06fd00d6ae630becf97ad6854ff5c8938d2adcb5c8417)
The package declares scripts.preinstall = 'node vishu.js', which runs automatically on npm install. vishu.js resolves the installer's public IP via api.ipify.org, reads CI-related environment variables (CI, GITHUB_ACTIONS, GITHUB_WORKFLOW, GITHUB_RUN_ID and related), and issues an HTTPS GET to a hardcoded webhook.site collector URL carrying those fields. It additionally performs a DNS lookup of a subdomain constructed from os.hostname() under a hardcoded oastify.com (Burp Collaborator) domain, exfiltrating the installer's hostname via DNS. The package name typosquats the scoped @intlify/message-compiler package and its only functional code is this beacon.

Compromised versions (1)

  • 9.2.0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.