test__123q1npm
test__123q1 is a confirmed malicious npm package (MAL-2026-15637) that steals credentials and exfiltrates sensitive data (malicious versions 3.2.4, 4.3.5). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in test__123q1 (npm)
What this malware does
The package declares a postinstall hook (node dist/script.js) while its declared main entry (dist/index.js) is an inert 105-byte stub, so the entire behavior fires at npm install time. The postinstall script walks the installer's home directory and common workspace folders (Desktop, Documents, Downloads, Projects, Backups) and (1) reads browser wallet extension profiles for MetaMask, Phantom, Trust, Coinbase, OKX, Rabby, Keplr, Solflare, TronLink, Ronin, and Exodus, along with desktop wallet stores for Exodus, Electrum, Bitcoin Core, Ledger Live, Trezor Suite, Wasabi, and Sparrow, plus any files matching seed/mnemonic/bip39/privatekey/keystore keywords; (2) enumerates a hardcoded list of sensitive files including .env*, .npmrc, .yarnrc, .pnpmrc, .netrc, .git-credentials, .gitconfig, id_rsa/id_ed25519/id_ecdsa, .pem/private.key, aws.json, gcloud.json, service-account.json, and firebase-adminsdk.json. Collected material is packaged with tar and uploaded to a hardcoded Telegram bot endpoint at https://api.telegram.org/bot<BOT_TOKEN>/sendDocument. The script additionally harvests the installer's npm auth token, writes //registry.npmjs.org/:_authToken=${token} into an .npmrc, queries registry.npmjs.org/-/whoami and registry.npmjs.org/-/v1/search to enumerate the victim maintainer's other packages, and copies its own dist payload into them via fs.cp('dist', pathToInject, { recursive: true }) to republish malicious versions under the victim's identity.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for test__123q1 (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging test__123q1 across your stack and pipelines.
If you installed it — respond
test__123q1 is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If test__123q1 was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks test__123q1 before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks test__123q1-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.