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Malicious code in test8999-auth (npm)

Exploitation and risk

Source status

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osv · MAL-2026-16286

Published

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (6edad84dcdfc0fbb2164a86dd74f831f3da2bc940794e1f157f9de2d159f7545) package.json declares a preinstall hook that runs index.js on `npm install`. index.js requires child_process, os, http, and https, then collects host identity data — os.hostname(), os.platform(), os.arch(), os.release(), os.cpus(), and shell output from `whoami`, `id`, `pwd`, and `uname -a` — and POSTs the resulting JSON over plain HTTP to a hardcoded Burp Collaborator subdomain at http://zore2dnpm2wdqivokhty823ylprjf93y.oastify.com. The collection and exfiltration fire automatically at install time with no user interaction. package.json also declares the package as its own dependency (`test8999-auth: ^1.0.1`), and the generic `testNNNN` naming plus OOB collaborator destination are consistent with a dependency-confusion probe. ## Source: ghsa-malware (a29ed38686042ed786c0296305881cc95d701e6e57869db03a62a7f047b532c2) 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: ossf-package-analysis (883ac98e5270a47d8776f617f0d8cef1e987d8ec403a9bfda9329d93b4a0d7fd) The OpenSSF Package Analysis project identified 'test8999-auth' @ 1.0.1 (npm) as malicious. It is considered malicious because: - The package communicates with a domain associated with malicious activity. - The package executes one or more commands associated with malicious behavior.

Source published
18 Sep 2026 15:35:40 UTC
Source modified
18 Sep 2026 20:45:06 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.

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 13 Nov 03:01 UTC · 274 of 275 readable · 272 fully read · documentation 461/469 current