What does the @kite-js-tools/core malware do?

package.json declares preinstall and postinstall lifecycle scripts that fire automatically on npm install. The preinstall hook performs an HTTPS GET to https://d9hugcagp7gsdcl9dvs0frxfmqc1o8u86.oast.pro/ with the installer's hostname and process PID embedded in the URL path. The postinstall hook performs a DNS resolution against postinstall. .d9hugcagp7gsdcl9dvs0frxfmqc1o8u86.oast.pro, leaking the same host identifier via DNS to the same collaborator subdomain. The destination is a Project Discovery Interactsh (OAST) subdomain — out-of-band callback infrastructure typically used to confirm code execution and exfiltrate identifying data from compromised machines. Installer-side host

Which versions of @kite-js-tools/core are malicious?

The following npm versions of @kite-js-tools/core are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate @kite-js-tools/core if I installed it?

@kite-js-tools/core 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.

I already installed @kite-js-tools/core — how do I know if it already compromised me?

If @kite-js-tools/core 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 @kite-js-tools/core part of a known attack campaign?

Yes — @kite-js-tools/core is associated with the IN-MAL-2026-014874 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 @kite-js-tools/core 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 @kite-js-tools/core (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @kite-js-tools/core across your stack and pipelines.

Malicious package

@kite-js-tools/corenpm

@kite-js-tools/core is a confirmed malicious npm package (MAL-2026-12319) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @kite-js-tools/core (npm)

MAL-2026-12319

Immediate action

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

npm uninstall @kite-js-tools/core

What this malware does

package.json declares preinstall and postinstall lifecycle scripts that fire automatically on npm install. The preinstall hook performs an HTTPS GET to https://d9hugcagp7gsdcl9dvs0frxfmqc1o8u86.oast.pro/ with the installer's hostname and process PID embedded in the URL path. The postinstall hook performs a DNS resolution against postinstall.<hostname>.d9hugcagp7gsdcl9dvs0frxfmqc1o8u86.oast.pro, leaking the same host identifier via DNS to the same collaborator subdomain. The destination is a Project Discovery Interactsh (OAST) subdomain — out-of-band callback infrastructure typically used to confirm code execution and exfiltrate identifying data from compromised machines. Installer-side host identifiers leave the machine to an attacker-controlled endpoint on every install.

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

5fc1e1caf8550f3daa91e586dd7b4eab7f5ec8f62acc12dce63d9d60c293e7c9

Detection & response playbook

Credential / info stealer

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @kite-js-tools/core (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @kite-js-tools/core across your stack and pipelines.
If you installed it — respond
@kite-js-tools/core 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 @kite-js-tools/core 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 @kite-js-tools/core 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. @kite-js-tools/core on npm has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-014874

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks @kite-js-tools/core-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

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