Malicious code in @prime0/alanced-match (npm)
Exploitation and risk
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osv · MAL-2026-16204
Published--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (53d49bf28eb233bca0591b32c11b411d1c10b8e8f978d1b76c6df2e6a00772f3) The package @prime0/alanced-match is a 1-character-drop typosquat of balanced-match. Its postinstall.js runs automatically on npm install and POSTs a host fingerprint (hostname, username, platform, arch, cwd, node version, pid, non-internal IP addresses, uptime, package name) to the hardcoded bare-IP endpoint http://69.48.229.140:8080/b. Its main entry index.js opens a require-time HTTP polling channel to the same host, retrieves JSON commands from /c every 30 seconds (with 10-minute re-beacons), executes them via child_process.exec, and posts stdout/stderr back to /r — providing full remote code execution on the installer's machine. A source comment self-identifies the code as a 'Minimal stealth agent' and 'typosquat'.
- Source published
- 16 Sep 2026 06:27:22 UTC
- Source modified
- 16 Sep 2026 06:45:06 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.