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Malicious package

nottuff23npm

Malicious code in nottuff23 (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-5915
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall nottuff23

What this malware does

The package is one of approximately 100 identically-named-pattern publishes from an automated bulk-publish operation. The tarball ships auto-publish.sh, which hard-codes a list of sibling names (nottuff1..30, ishowfeet1..20, imillegal1..5, abuden*, ratelimitsucks*nottuff23 is on the list) and republishes the same payload to each name by rewriting package.json.name and running npm publish --silent. The shipped content is not a Node library: package.json.main points at sw.js, a browser service worker that uses importScripts, self.addEventListener('install'|'activate'|'fetch'|'message',...) — APIs that do not exist in Node and would throw if require()'d. The bundled obfuscated assets/*.js files are a dormant Ultraviolet-style web-proxy frontend, plus an index.html titled "Riverbend Tutoring" that loads remote scripts from cdn.21baseballacademy.com and googletagmanager.com and opens https://abdct.com/ on click. There are no npm lifecycle hooks (scripts contains only a no-op test); npm install and require() execute no code from this package. Installer-side risk on default install is effectively zero, but the package is registry-namespace abuse: bulk-published spam under squatted names, with heavily obfuscated browser payloads whose intent at the eventual deployment site is not verifiable from this tarball alone. Routing to human review for namespace-abuse / registry-spam disposition.

Malicious versions

1 flagged
1.7.7

Indicators of compromise (SHA-256)

41d429b099904a530f5dc4dfdd4724b7b6160c1de1330e0b103e8b8e3c737dfd

Frequently asked questions

No. nottuff23 on npm has been identified as a malicious package (version 1.7.7 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-006820

References

Credits

  • Amazon Inspector · finder

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Supply-chain protection
nottuff23 (npm) malicious package — MAL-2026-5915 | O3 Security