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)
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
Indicators of compromise (SHA-256)
Detection & response playbook
Destructive / sabotageFind 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.
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.
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.
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
Campaign
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.