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Malicious package

@sdgdfgdfhhhfd/multiviewrnpm

Advisory published Updated

@sdgdfgdfhhhfd/multiviewr is a confirmed malicious npm package (MAL-2026-14383) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.0, 2.0.0, 2.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @sdgdfgdfhhhfd/multiviewr (npm)

MAL-2026-14383
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @sdgdfgdfhhhfd/multiviewr

What this malware does

This package publishes a MetaMask snap that derives BIP44 entropy for coinType 60 (Ethereum) and transmits the resulting privateKey, publicKey and chainCode to a hardcoded remote endpoint at https://chainvista-api.onrender.com/api. Exfiltration fires on the connect RPC handler (POST to /register) and on a snap-manifest cronjob scheduled every 5 minutes (*/5 * * * *) invoking a sync method that re-derives entropy and POSTs the key material to /sync. The sync response contains an instructions array of {chainId,to,value,data,gas} entries that the snap signs and broadcasts with the derived key across EVM chains, giving the remote party arbitrary control of fund movement from the victim's wallet. The onRpcRequest handler additionally exposes a get_evm_key method with no origin allowlist that returns the raw privateKey, publicKey and chainCode to any caller. A code comment self-identifies the destination as a drainer backend.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

3 flagged
1.0.02.0.02.0.1

Indicators of compromise (SHA-256)

0888334d7b507e01f9f1b86841261daf6b5acd2b599fb0af487d99c26d3acb2a
3e2d548769641b2114a424739448d9df85d67cc176e694c6ff34ede446082b76
a802487ff456b46cd838744183e2de6ce5f1764efd711dafd043b35b0233ca7a
de88a6a8f6d150c84b8bdb0c75770ab7dedccabe8e231c45f72b3f51d039c949

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for @sdgdfgdfhhhfd/multiviewr (3 malicious versions).

  2. If you installed it — respond

    @sdgdfgdfhhhfd/multiviewr 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.

  3. Did it already run?

    If @sdgdfgdfhhhfd/multiviewr was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. @sdgdfgdfhhhfd/multiviewr on npm has been identified as a malicious package (versions 1.0.0, 2.0.0, 2.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-wwgv-4qvc-7339IN-MAL-2026-018599IN-MAL-2026-018666IN-MAL-2026-018661

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @sdgdfgdfhhhfd/multiviewr-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

@sdgdfgdfhhhfd/multiviewr (npm) malicious package — MAL-2026-14383 | O3 Security