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npm · Malicious package advisory

Malware

chai-use-chains

MAL-2026-2899

Malicious code in chai-use-chains (npm)

Details

chai-use-chains is a malicious npm package that when imported downloads a C2 dropper from https://jsonkeeper[.]com/b/FAWPU and executes it (similar to malware in to chai-await-test).

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## Source: amazon-inspector (82cb30ff865bcb0071b1861dd09c9b8e770861b76d263b30e42aafd54626c39b)
The package chai-use-chains was found to contain malicious code.

Compromised versions (2)

  • 1.2.6
  • 1.2.7

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