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Malicious package

leviosa86-testnpm

leviosa86-test is a confirmed malicious npm package (MAL-2026-10636) that steals credentials and exfiltrates sensitive data (malicious version 4.999.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in leviosa86-test (npm)

MAL-2026-10636
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall leviosa86-test

What this malware does

[email protected] ships src/poc/index.js which uses child_process.exec to run a shell pipeline that collects host reconnaissance data (hostname, current working directory, whoami, a package identifier) and the public egress IP fetched from https://ifconfig.me, concatenates the values, and exfiltrates them via nslookup as a subdomain label of d9bd62bu6g119svvav70o3p9tymtrxkoj.oast.site — an Interactsh (project-discovery) out-of-band callback domain. The generic package name combined with the anomalous 4.999.0 version bump is the canonical dependency-confusion research/attack shape, where a high version number is published to a public registry to override a private internal package and cause the recon payload to fire in the victim's build.

Malicious versions

1 flagged
4.999.0

Indicators of compromise (SHA-256)

46b0bed6337ffe527af2615fed8ae1ecbb449f6a6cb00afa6381f7811ec88956

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 leviosa86-test (version 4.999.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging leviosa86-test across your stack and pipelines.

  2. If you installed it — respond

    leviosa86-test 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 leviosa86-test 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 leviosa86-test 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. leviosa86-test on npm has been identified as a malicious package (version 4.999.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-010599

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks leviosa86-test-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

leviosa86-test (npm) malicious package — MAL-2026-10636 | O3 Security