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)
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
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind 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.
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.
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.
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
Campaign
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.