lulukingnpm
Advisory published Updated
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
Search your lockfiles and build artifacts for luluking (version 0.0.1).
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 installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
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.