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Malicious package

@zzzgenesis00/bip39-mnemonicnpm

@zzzgenesis00/bip39-mnemonic is a confirmed malicious npm package (MAL-2026-12030) that steals credentials and exfiltrates sensitive data (malicious version 2.3.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @zzzgenesis00/bip39-mnemonic (npm)

MAL-2026-12030
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @zzzgenesis00/bip39-mnemonic

What this malware does

Package impersonates the bitcoinjs/bip39 project (author field set to 'bitcoinjs-lib') and ships a postinstall.js that runs on npm install. The script collects host/user identifiers and a curated list of sensitive environment variables (including NPM_TOKEN, NODE_AUTH_TOKEN, GITHUB_TOKEN, AWS_* keys, and wallet-related PRIVATE_KEY/MNEMONIC/SEED_PHRASE), enumerates ~/.ssh, reads ~/.npmrc and ~/.gitconfig, probes Chrome/Firefox profile artifacts and crypto wallet directories, and shells out to npm whoami and git config. The collected JSON is transmitted to two hardcoded destinations: the Telegram Bot API (bot token and chat_id 7231970337 embedded in the script) and a POST to 40f955f39128bd79-178-249-214-24.serveousercontent.com/collect. Exfiltration is delayed by a randomized setTimeout (1500 + rand*2000 ms) and the module re-exports./index.js to appear legitimate.

Malicious versions

1 flagged
2.3.1

Indicators of compromise (SHA-256)

7f370f7bfdab3817c323daee33d8de48e5171c41dad3f1bff2f1335e04a65060

Detection & response playbook

Credential / info stealer
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @zzzgenesis00/bip39-mnemonic (version 2.3.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @zzzgenesis00/bip39-mnemonic across your stack and pipelines.

  2. If you installed it — respond

    @zzzgenesis00/bip39-mnemonic is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If @zzzgenesis00/bip39-mnemonic was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks @zzzgenesis00/bip39-mnemonic before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. @zzzgenesis00/bip39-mnemonic on npm has been identified as a malicious package (version 2.3.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-011471

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @zzzgenesis00/bip39-mnemonic-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

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