Which versions of blockchain-helper-0 are malicious?

Every published version of blockchain-helper-0 on npm is considered malicious. Remove the package entirely.

How do I remediate blockchain-helper-0 if I installed it?

Remove blockchain-helper-0 from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound network activity or persistence. Use O3 Security's dependency scanner to confirm the package and its artifacts are fully purged across your stack.

Can O3 Security detect blockchain-helper-0 in my codebase?

Yes. O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, blocking blockchain-helper-0 and packages like it before any post-install script runs.

Malicious package

blockchain-helper-0npm

Malicious code in blockchain-helper-0 (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-5352

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall blockchain-helper-0

What this malware does

Note: This report is updated by a verification record

Crypto/SSH/wallet stealer (self-labeled "CRYPTO STEALER"). postinstall scripts/postinstall.js auto-execs, src/index.js harvests ~/.ssh/id_rsa + wallet keys/seeds + env and exfils to hardcoded Telegram bot 8227918239:AAGEMDrBZluDsBBYPxfSyMuv2l3FY8cZCcs chat 6433587894. Auto-exec + hardcoded attacker Telegram exfil; "blockchain-helper" identity has no reason to read SSH/wallet keys.

Malicious versions

all versions

Every published version of this package is considered malicious — remove it entirely.

Frequently asked questions

No. blockchain-helper-0 on npm has been identified as a malicious package (all published versions flagged). It should be removed immediately — do not install or keep it in your dependency tree.

References

app.safedep.io

Credits

SafeDep · finder

Scan your dependencies

O3 Security blocks malicious packages like this at install time and in CI.

Supply-chain protection