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npm · Malicious package advisory

Malware

chai-as-chain-v2

MAL-2026-2886

Malicious code in chai-as-chain-v2 (npm)

Details

chai-as-chain-v2 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 (d2dd43a8df03dc914cb2bd9c028c452f5fd749767bd2c2faef275a9c840c19c5)
The package chai-as-chain-v2 was found to contain malicious code.

Compromised versions (1)

  • 1.1.1

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