VYPR

npm · Malicious package advisory

Malware

@tvg-mar/tvg-promos-atomic-ui

GHSA-fvh3-76xv-7978

Malicious code in @tvg-mar/tvg-promos-atomic-ui (npm)

Details

**Severity:** Critical

**Affected versions:** `= 9.9.10`

## Source: amazon-inspector (22c22841398a01b681136598baf046a8ad9ad9ef6d728899a0fbce056ff66369)
The package's package.json declares an `install` lifecycle script that runs `node index.js`, which loads `runtime/support/telemetry/probe/impl.js`. That file resolves the `os` and `dns` core modules indirectly through `module.constructor._load` with char-code-array names to avoid appearing in a normal `require` graph, then reads `os.userInfo().username`, `os.hostname()`, and the basename of `process.cwd()`. Those values are concatenated as DNS labels together with a hex-decoded destination domain and issued as a `dns.resolve4` query to a subdomain of `oob.algamil7x.xyz`, a DNS-based out-of-band exfiltration collector. The destination hostname and the core-module names are stored as char-code arrays and decoded at runtime, and the logic is split across helper files (b2e6f8.js/c3f7a9.js) under a `telemetry/probe` cover directory. Every `npm install` of this version therefore leaks the installing user's username, machine hostname, and working-directory name to an attacker-controlled domain, and the obfuscation shows the destination and API surface were deliberately hidden.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/76398e59725721b4b1829aff3872e1f7fe84dabb/osv/malicious/npm/@tvg-mar/tvg-promos-atomic-ui/MAL-2026-16415.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/76398e59725721b4b1829aff3872e1f7fe84dabb/osv/malicious/npm/@tvg-mar/tvg-promos-atomic-ui/MAL-2026-16415.json
- https://www.npmjs.com/package/@tvg-mar/tvg-promos-atomic-ui/v/9.9.10
- https://github.com/advisories/GHSA-fvh3-76xv-7978

Compromised versions (1)

  • = 9.9.10

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