efhthrthrthregerht

GHSA-rxg9-j4gc-5m6m

Malicious code in efhthrthrthregerht (npm)

Details

**Severity:** Critical

**Affected versions:** `= 99.9.9`

## Source: amazon-inspector (4845639223c486cf2d33751ad950cea4c7f70401877929d25c36e7d07655d820)
The package's postinstall hook runs index.js, which collects the installer's OS username, current working directory, hostname, and local IPv4 address and POSTs them as JSON to a hardcoded webhook.site collector URL (https://webhook.site/f9bff304-3053-4d54-be05-86537267514a) on npm install. The package name is a random keyboard-mash string with no documented purpose, and the only on-install behavior is the outbound beacon to an anonymous ephemeral webhook endpoint controlled by whoever created the webhook.site token.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/c654723e238cbf7547b8e05e287837f94bfbbff0/osv/malicious/npm/efhthrthrthregerht/MAL-2026-16436.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/c654723e238cbf7547b8e05e287837f94bfbbff0/osv/malicious/npm/efhthrthrthregerht/MAL-2026-16436.json
- https://www.npmjs.com/package/efhthrthrthregerht/v/99.9.9
- https://github.com/advisories/GHSA-rxg9-j4gc-5m6m

Compromised versions (1)

= 99.9.9

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