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Malicious MAL-2026-6352

hex-conv-ae7a

npm package · versions 1.0.0

Reported Jun 23, 2026 · Updated Jun 23, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (35d4f6adb1ef40a529deec65b7409b949cd93ad60d6cf3880ff5e8f0079fef1f)
The package's package.json declares a postinstall hook ("postinstall": "node run.js") that runs run.js automatically on npm install. run.js imports os, fs, http, https, and child_process and collects host identity and environment data including os.hostname(), os.userInfo(), os.platform(), process.env.USER, and process.cwd(), reads files from the filesystem (fs.readFileSync, fs.existsSync), base64-encodes payloads via Buffer.from(...).toString('base64'), and POSTs the result over http/https to a remote endpoint. This is the canonical install-time host-reconnaissance and exfiltration shape: a default `npm install` of this package automatically sends installer machine information off-host without any user interaction or documented purpose. The package name (hex-conv with a random hex suffix) is consistent with throwaway/disposable squatting infrastructure and the package has no legitimate library functionality matching this behavior.