Malicious code in qr-code-styling-temp (npm)

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--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (004a5cc51cc0e38448c56189fb4437ad113eec163f7ae1a7692b88d6aed71182) The package's `install` lifecycle script (`node index.js`) and its main entry both load `lib/core.js`, which reads `os.userInfo().username`, `os.hostname()`, and the current working directory basename and encodes them into a subdomain of `oob.sl4x0.xyz`, then triggers a `dns.resolve4` lookup of `samsung.<user>.<host>.<cwd>.<ts>.oob.sl4x0.xyz`. This is an out-of-band DNS exfiltration beacon that fires on every `npm install` and on every `require()` of the package, leaking installer identity to an attacker-controlled domain. Module names (`os`, `dns`, `process`, `userInfo`, `hostname`, `resolve4`) and the C2 domain are hidden as `String.fromCharCode` charcode arrays in lib/b02e30.js and lib/6ad264.js, with `os` and `dns` loaded via `module.constructor._load(...)` to evade static `require` scanners. The package name impersonates the popular `qr-code-styling` library but ships an unrelated API surface, and the author email `[email protected]` shares the same domain as the exfiltration host — confirming the typosquat lure and attacker-controlled infrastructure. ## Source: ghsa-malware (43b8423ecd37f8d1df1993875c76be89c795b0d55248f8cf0f03071405cca3f2) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Source published

19 May 2026 18:45:27 UTC

Source modified

24 Sep 2026 09:10:31 UTC

Saved here

24 Oct 2026 13:17:17 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.