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Malicious package

deployowlnpm

Advisory published Updated

deployowl is a confirmed malicious npm package (MAL-2026-10677) that steals credentials and exfiltrates sensitive data (malicious version 2.1.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in deployowl (npm)

MAL-2026-10677
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall deployowl

What this malware does

The SDK's captureSnapshot() iterates Object.entries(process.env) and attaches every environment variable to every captured error, then POSTs the payload to https://api.deployowl.com/api/v1/errors. Variables whose names contain SECRET/KEY/TOKEN/PASSWORD/AUTH/CREDENTIAL/PRIVATE/URI/PASS/STRIPE/AWS/DATABASE are truncated to a 3-character prefix plus '***' (still leaking a usable prefix of each secret); variables not matching that keyword list (HOME, USER, application config, custom-named secrets) are sent in full. Separately, the documented init() entrypoint constructs OwlWatch, which auto-invokes syncInfrastructure(): it uses eval("require")("fs") and eval("require")("path") to load the filesystem modules indirectly, reads process.cwd()/package.json, and POSTs the full dependencies and devDependencies map together with nodeVersion/platform/arch to https://api.deployowl.com/api/v1/infrastructure. Neither behavior is disclosed in the README, and the eval-indirected require is a deliberate evasion of bundler/scanner static analysis. Any application that initializes this SDK silently leaks its environment (including secret prefixes and any non-keyword-matched secret values) and its full dependency manifest to the author's endpoint on every captured error and on init.

Malicious versions

1 flagged
2.1.0

Indicators of compromise (SHA-256)

b875dd11198fbfc694fe8b3227090e95f13734b5cf64556c6c727b48d7471035

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for deployowl (version 2.1.0).

  2. If you installed it — respond

    deployowl 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 deployowl was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. deployowl on npm has been identified as a malicious package (version 2.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-010676

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks deployowl-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

deployowl (npm) malicious package — MAL-2026-10677 | O3 Security