VYPR

npm · Malicious package advisory

Malware

rimraf-utils

MAL-2026-3772

Malicious code in rimraf-utils (npm)

Details


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_-= Per source details. Do not edit below this line.=-_

## Source: amazon-inspector (a59d88d733415216903578b3c3806d76405a23a7cca56ee355eb6725e4e930d4)
rimraf-utils@1.0.5 impersonates the widely-installed `rimraf` package (index.js is a dummy stub that internally identifies itself as 'lodash-js — Just a dummy module. The real payload is in postinstall.js'). On `npm install`, `scripts.postinstall` runs postinstall.js, which harvests installer-side secrets and ships them to a hardcoded bare-IP C2 over plaintext HTTP at `http://149.28.127.35:8888` (overridable via `process.env.C2_URL`).

Specific behavior in postinstall.js:
- Reads `~/.npmrc` (npm auth tokens), `~/.env` (API keys, DB URLs, cloud credentials, payment keys, EVM private keys, webhooks), and `~/.git-credentials`.
- Collects `os.hostname()` and `os.userInfo()` for host identification.
- Enumerates 71 hardcoded Chrome/Brave/Edge/Firefox crypto-wallet extension IDs (MetaMask, Phantom, Coinbase, Trust, Exodus, Ledger Live, Trezor, Solflare, etc.) under the browsers' profile directories and reads each wallet's LevelDB `.log` files, regex-extracting `vault`/`seed`/`mnemonic`/`privateKey`/`encrypted`/`password` fields.
- Recursively walks `~/Documents`, `~/Desktop`, `~/Downloads`, `~/OneDrive`, `~/Dropbox`, `~/Google Drive`, and `backup`/`keys`/`wallet`/`crypto` subtrees searching for seed-phrase and private-key patterns.
- POSTs the aggregated JSON payload to the C2 via `http.request(...)`.

This package matches multiple unambiguous attack fingerprints simultaneously: hardcoded bare-IP plaintext-HTTP C2 invoked from a lifecycle hook; browser crypto-wallet extension-ID enumeration; seed-phrase/mnemonic home-directory scanner; and installer-secret regex extraction from `~/.npmrc`/`~/.env`/`~/.git-credentials`. The name is a typosquat of `rimraf` used as the delivery vector for the payload.

Compromised versions (3)

  • 1.0.4
  • 2.0.0
  • 1.0.5

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