MAL-2026-5355 Malicious code in ethereum-kit-1 (npm)
Malicious package
Published
MAL-2026-5355 is a malicious package: ethereum-kit-1 (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-5355/ (Markdown: https://insights.sbomify.com/MAL-2026-5355/index.md)
- Package
- ethereum-kit-1
- Registry
- npm
What is MAL-2026-5355?
MAL-2026-5355 is a malicious package in ethereum-kit-1, published on 9 Jun 2026.
Official description
Crypto/SSH/wallet stealer, blockchain-helper-0/web3-tools-9 campaign sibling (c960/c961). postinstall scripts/postinstall.js auto-execs, src/index.js harvests ~/.ssh/id_rsa+wallet keys/seeds+env, self-labels "CRYPTO STEALER", exfils to IDENTICAL Telegram bot 8227918239 chat 6433587894 (not rotated). Generic-crypto-name + numeric suffix + 1.0.0 pattern.
The package was found to contain malicious code or consuming dependency that contains malicious code
What should I do about MAL-2026-5355?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.