VYPR

npm · Malicious package advisory

Malware

configcat-trello-powerup

MAL-2026-4535

Malicious code in configcat-trello-powerup (npm)

Details


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## Source: amazon-inspector (5365489bc7a763096bf4be47f80bd47e4513917d8b37ba2754e33ae11983872b)
package.json declares `"preinstall": "node index.js"`, which fires automatically on `npm install`. index.js collects host identifiers (os.hostname, os.userInfo, homedir, DNS servers) and reads sensitive system files (/etc/passwd, /etc/hosts) plus package metadata, then HTTPS POSTs the bundle to a hardcoded Burp Collaborator subdomain `hzklpyrf8gdhgtycz16veroqihobc10q.oastify.com`. The package ships no real functionality — empty description, empty author, and a name resembling a plausible internal Trello/ConfigCat integration — fingerprint of a dependency-confusion squat whose only purpose is to beacon installer-side data to the attacker for follow-on targeting.

Compromised versions (1)

  • 1.0.0

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