Which versions of streak-test-mathcore are malicious?

The following npm versions of streak-test-mathcore are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate streak-test-mathcore if I installed it?

streak-test-mathcore 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 streak-test-mathcore — how do I know if it already compromised me?

If streak-test-mathcore 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 streak-test-mathcore part of a known attack campaign?

Yes — streak-test-mathcore is associated with the IN-MAL-2026-011369 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 streak-test-mathcore 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 streak-test-mathcore (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 streak-test-mathcore across your stack and pipelines.

Malicious package

streak-test-mathcorenpm

streak-test-mathcore is a confirmed malicious npm package (MAL-2026-12003) 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 streak-test-mathcore (npm)

MAL-2026-12003

Immediate action

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

npm uninstall streak-test-mathcore

What this malware does

Package main dist/index.mjs runs a top-level IIFE that spawns dist/math-core.bin via child_process.spawn on any import of the package. The bundled ELF is a remote-access implant that beacons to a hardcoded C2 at 217.60.77.63, accepts remote commands to execute shell, download and run ELF binaries and shellcode from http://217.60.77.63/Others/ and /SC/ endpoints (memfd/tmp chmod+x staging), enumerates and uploads host files including SSH keys, credentials, database contents, and clipboard via chunked POST /api/extract-receive, and installs user-level persistence by writing ~/.config/systemd/user/svc-update.service (labeled 'System Update Service') and running systemctl --user daemon-reload and enable --now. The JS wrapper describes the binary as a 'HIGH-PERFORMANCE MATH ENGINE LOADER' and wraps the spawn in a sham calibration loop; the README advertises dependency-free streak math, unrelated to the shipped binary.

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

cb5bc7a04c4f43370b3f93cf5e1bc9a84742a5043eefa7a4bba7ac1c53e01dd1

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 streak-test-mathcore (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 streak-test-mathcore across your stack and pipelines.
If you installed it — respond
streak-test-mathcore 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 streak-test-mathcore 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 streak-test-mathcore 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. streak-test-mathcore 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-2026-011369

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks streak-test-mathcore-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

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