test1sdsd2

GHSA-9mc8-mrvr-f664

Malicious code in test1sdsd2 (npm)

Details

**Severity:** Critical

**Affected versions:** `= 99.99.99`

## Source: amazon-inspector (3c7bd7c5932337e17adaf4900cb7e29766fe6b5307bd170b38660dd05497ebdc)
Package [email protected] declares preinstall and postinstall hooks in package.json that execute index.js on `npm install`. index.js performs an HTTP GET to the hardcoded bare IP http://128.199.122.145/?test1sdsd2, embedding the package name in the query string, which confirms code execution on the installer's machine and leaks install-signal (package name, implicit source IP, timing) to an attacker-controlled endpoint. The version number 99.99.99 combined with the beacon shape is the canonical dependency-confusion probe pattern used to detect resolution of an internal package name against a public registry. The package ships no legitimate library functionality.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/5f0495009882359c4fb90f43d4c686a809dd861a/osv/malicious/npm/test1sdsd2/MAL-2026-16316.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/5f0495009882359c4fb90f43d4c686a809dd861a/osv/malicious/npm/test1sdsd2/MAL-2026-16316.json
- https://www.npmjs.com/package/test1sdsd2/v/99.99.99
- https://github.com/advisories/GHSA-9mc8-mrvr-f664

Compromised versions (1)

= 99.99.99

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.