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Malicious package

vaults-monitor-cronnpm

vaults-monitor-cron is a confirmed malicious npm package (MAL-2026-5784) that steals credentials and exfiltrates sensitive data (malicious version 999.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in vaults-monitor-cron (npm)

MAL-2026-5784
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall vaults-monitor-cron

What this malware does

On npm install, the package's preinstall hook (node postinstall.js || true) executes automatically. The script collects hostname, username, and current working directory, then iterates process.env and filters keys matching the regex /key|secret|token|pass|private|ssh|deploy|auth|api|rpc|wallet|sentry|docker|graph|slack|host/i, capturing CI tokens, SSH keys, deploy credentials, cloud API keys, RPC/wallet secrets, and similar. The collected JSON payload is POSTed via https.request to the hardcoded bare IP 185.130.46.35:8443/collect. The package metadata reinforces the attack shape: version 999.0.0 and description "Internal package" are the canonical dependency-confusion pattern, intended to override an organization's internal vaults-monitor-cron package. The || true suffix on the preinstall command swallows errors so the install appears to succeed silently. There is no legitimate functionality in the package — its sole on-install effect is credential exfiltration.

Malicious versions

1 flagged
999.0.0

Indicators of compromise (SHA-256)

b81c6b9e59e86c40858cb47e91d597b3776fea71def7feb3ca11833625fa3923
18042d06d50d5657384146376bfd0f18841c526ab28936b4054a0d426ad2a77d

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 vaults-monitor-cron (version 999.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging vaults-monitor-cron across your stack and pipelines.

  2. If you installed it — respond

    vaults-monitor-cron 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 vaults-monitor-cron 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 vaults-monitor-cron 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. vaults-monitor-cron on npm has been identified as a malicious package (version 999.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-006487RLMA-2026-05640

References

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks vaults-monitor-cron-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

vaults-monitor-cron (npm) malicious package — MAL-2026-5784 | O3 Security