MAL-2026-5352 Malicious code in blockchain-helper-0 (npm)
- Package
- blockchain-helper-0
- Registry
- npm
What is MAL-2026-5352?
MAL-2026-5352 is a malicious package in blockchain-helper-0, published on 9 Jun 2026.
Official description
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.
The package was found to contain malicious code or consuming dependency that contains malicious code
What should I do about MAL-2026-5352?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.