Which versions of knowledge-grader are malicious?

The following npm versions of knowledge-grader are flagged malicious: 1.0.1. Treat any of these as compromised.

How do I remediate knowledge-grader if I installed it?

Remove knowledge-grader 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.

I already installed knowledge-grader — how do I know if it already compromised me?

If knowledge-grader 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.

Is knowledge-grader part of a known attack campaign?

Yes — knowledge-grader is associated with the IN-MAL-2026-014949 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find knowledge-grader across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for knowledge-grader (version 1.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging knowledge-grader across your stack and pipelines.

Malicious package

knowledge-gradernpm

knowledge-grader is a confirmed malicious npm package (MAL-2026-12795) that executes malicious code on install (malicious version 1.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in knowledge-grader (npm)

MAL-2026-12795

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall knowledge-grader

What this malware does

The package's preinstall hook runs index.js, which collects hostname, username, home directory, DNS servers, package path, and the contents of /etc/passwd and /etc/hosts, then HTTPS-POSTs the JSON payload to the hardcoded Burp Collaborator subdomain tebdjgz4guem6t74pf6iyowyjppgd71w.oastify.com. This fires automatically on npm install with no user interaction.

Malicious versions

1 flagged

1.0.1

Indicators of compromise (SHA-256)

74d01af74706eee07fb8ed306ec3b830641f63b4c055d605026edff65fd11c8f

Detection & response playbook

Malicious package

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for knowledge-grader (version 1.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging knowledge-grader across your stack and pipelines.
If you installed it — respond
Remove knowledge-grader 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 knowledge-grader 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 knowledge-grader 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. knowledge-grader on npm has been identified as a malicious package (version 1.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-014949

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks knowledge-grader-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.

Malware detection Runtime egress monitoring

Explore

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