check-auditnpm
check-audit is a confirmed malicious npm package (MAL-2026-13976) that executes malicious code on install (malicious version 99.9.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in check-audit (npm)
What this malware does
[email protected] is an otherwise empty package (no author, no description, no meaningful code) whose only effect on install is to pull a dependency named ltidisafe from an arbitrary Google Cloud Storage URL: https://ltidi.storage.googleapis.com/depenconf/ltidisafe-3.6.5.tgz. This URL is not the npm registry and is not tied to any declared publisher of check-audit. The tarball contents are mutable and bypass registry-side scanning; whatever code and lifecycle scripts it ships execute in the installer's node_modules on npm install. The version number (99.9.1) and hollow package contents are consistent with a lure/dropper whose sole purpose is to pull attacker-controllable code into the dependency tree at install time.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
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 check-audit (version 99.9.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging check-audit across your stack and pipelines.
If you installed it — respond
Remove check-audit 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 check-audit 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 check-audit 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 check-audit-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.