What does the ethers-json-wallet malware do?

The OpenSSF Package Analysis project identified 'ethers-json-wallet' @ 1.0.0 (npm) as malicious. It is considered malicious because: - The package communicates with a domain associated with malicious activity. - The package executes one or more commands associated with malicious behavior.

Which versions of ethers-json-wallet are malicious?

The following npm versions of ethers-json-wallet are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate ethers-json-wallet if I installed it?

ethers-json-wallet 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.

I already installed ethers-json-wallet — how do I know if it already compromised me?

If ethers-json-wallet 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.

How do I find ethers-json-wallet across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for ethers-json-wallet (version 1.0.0).

Malicious package

ethers-json-walletnpm

Advisory published May 13, 2026Updated May 13, 2026

ethers-json-wallet is a confirmed malicious npm package (MAL-2026-3709) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in ethers-json-wallet (npm)

MAL-2026-3709

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall ethers-json-wallet

What this malware does

The OpenSSF Package Analysis project identified 'ethers-json-wallet' @ 1.0.0 (npm) as malicious.

It is considered malicious because:

The package communicates with a domain associated with malicious activity.
The package executes one or more commands associated with malicious behavior.

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

f3f9028ba781f40a017e081a311983ae2834cdce93583e629952f1f7e29a0677

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for ethers-json-wallet (version 1.0.0).
If you installed it — respond
ethers-json-wallet 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 ethers-json-wallet 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. ethers-json-wallet on npm has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

OpenSSF: Package Analysis · finder

Detect & block this

O3 blocks ethers-json-wallet-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database