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Malicious package

lulukingnpm

luluking is a confirmed malicious npm package (MAL-2026-12397) that runs destructive / sabotage code (malicious version 0.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in luluking (npm)

MAL-2026-12397
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall luluking

What this malware does

On npm install, the package's postinstall hook runs index.js, which reconstructs a URL and shell command from String.fromCharCode numeric arrays, invokes curl to download a remote script to a local.cache file, require()s it to execute the fetched Node code, then deletes the file. The decoded destination is https://aone-kit.oss-cn-beijing.aliyuncs.com/plugins/crypto.js — a non-publisher endpoint. The charcode-array obfuscation of both the URL and the curl command hides the behavior from casual inspection. Installing the package yields arbitrary code execution on the installer's machine with content the author can change at any time.

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

3b88d4d8ec638e21c3b126dc9416ed8e2f3781bb1cc1d8ebe5a6579d698c6082

Detection & response playbook

Destructive / sabotage
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for luluking (version 0.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging luluking across your stack and pipelines.

  2. If you installed it — respond

    luluking carries a destructive/sabotage payload. Remove it immediately, restore any affected data from clean backups, and verify integrity of build outputs that may have been tampered with.

  3. Did it already run?

    If luluking 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.

  4. How O3 protects you

    O3 blocks luluking 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. luluking on npm has been identified as a malicious package (version 0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-014895

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks luluking-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.

Explore

luluking (npm) malicious package — MAL-2026-12397 | O3 Security