server-authorized-cleanupnpm
server-authorized-cleanup is a confirmed malicious npm package (MAL-2026-16079) that executes malicious code on install (malicious version 1.1.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in server-authorized-cleanup (npm)
What this malware does
server-authorized-cleanup exposes triggerCleanup() which issues an HTTPS GET to the hardcoded author endpoint https://testback-2aqe.onrender.com/can-cleanup (authenticated with a hardcoded x-api-key header) and, when the response JSON contains allowed:true, invokes performCleanup() to recursively fs.rmSync every entry under the target directory (default process.cwd()). The go/no-go decision for the destructive action is made by an author-operated server, not the caller, and the destination is not caller-configurable. Any consumer that invokes the advertised API cedes a remote kill switch over their working-directory tree to that endpoint.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for server-authorized-cleanup (version 1.1.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging server-authorized-cleanup across your stack and pipelines.
If you installed it — respond
Remove server-authorized-cleanup from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If server-authorized-cleanup 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 server-authorized-cleanup 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 server-authorized-cleanup-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.