ethers-wallet-packagenpm
ethers-wallet-package is a confirmed malicious npm package (MAL-2026-4553) that steals credentials and exfiltrates sensitive data (malicious version 5.8.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in ethers-wallet-package (npm)
What this malware does
Package name impersonates the official @ethersproject/wallet, and package.json spoofs the ethers.js maintainer identity (author 'Richard Moore [email protected]'). The compiled lib/index.js wraps the Wallet constructor with an obfuscated VM-based interpreter whose base64-encoded op-array contains the plaintext target URL https://api.telegram.org/bot<redacted>/sendMessage and chat_id 7959381237. On every new Wallet(privateKey) call, the constructor POSTs the private key as JSON to that Telegram bot, giving the attacker full control over the victim's Ethereum funds. The Wallet class is the package's only advertised API, so any caller that imports the package and constructs a wallet leaks the key on first use.
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
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 ethers-wallet-package (version 5.8.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging ethers-wallet-package across your stack and pipelines.
If you installed it — respond
ethers-wallet-package 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-wallet-package 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 ethers-wallet-package 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 ethers-wallet-package-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.