@meziizana/frontend-loggernpm
Malicious code in @meziizana/frontend-logger (npm) Remove it immediately and rotate any exposed credentials.
What this malware does
package.json declares a preinstall lifecycle script that runs wget against https://webhook.site/f164a383-b9e7-4379-b18c-38bf41a3c152/ with query parameters carrying the installer's username ($(whoami)), current working directory ($(pwd)), and hostname ($(hostname)). This fires automatically on npm install with no user consent and sends installer-identifying reconnaissance data to a third-party collection endpoint. webhook.site is a public request-inspection service commonly abused as a low-effort exfiltration sink; the destination is not tied to any legitimate build or install task.
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 @meziizana/frontend-logger (version 10.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @meziizana/frontend-logger across your stack and pipelines.
If you installed it — respond
@meziizana/frontend-logger 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 @meziizana/frontend-logger 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 @meziizana/frontend-logger 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 @meziizana/frontend-logger-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.