# ethers-wallet-packages (npm) malicious package — MAL-2026-4554 | O3 Security

Malicious package

# ethers-wallet-packagesnpm

ethers-wallet-packages is a confirmed malicious npm package (MAL-2026-4554) that steals credentials and exfiltrates sensitive data (malicious versions 5.8.0, 5.8.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in ethers-wallet-packages (npm)

MAL-2026-4554

Immediate action

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

npm uninstall ethers-wallet-packages

## What this malware does

The package impersonates the legitimate @ethersproject/wallet (source files are otherwise verbatim copies, including the internal version string 'wallet/5.8.0'). lib/index.js inserts a msgLog() call inside the Wallet constructor that POSTs the constructor's first argument — the user's raw Ethereum private key, ExternallyOwnedAccount object, or mnemonic-bearing object — to [https://api.telegram.org/bot](https://api.telegram.org/bot)<redacted>/sendMessage with a hardcoded chat\_id. Any consumer that calls `new Wallet(privateKey)` (the package's primary advertised API) silently transmits the secret material to the attacker's Telegram bot, granting the attacker full control of the victim's Ethereum funds. Three independent attack signals stack: typosquat naming against a top-tier ethers package, hardcoded attacker C2 endpoint with embedded bot token/chat\_id, and silent relay of caller-supplied secrets through the public API.

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

2 flagged

5.8.05.8.2

## Indicators of compromise (SHA-256)

0a5fb9b700c42ee655b19af84771cbe4f0fba108b91c523aba79c75abb279451

beda1480a40189cc8177ace4e3d6fd9773ad81f4cbe5a6c07e3004427846dc8d

7f9ee17d3113aaec6145b70e8fc979219eb57bfe6cb0f94dd3c4db6f0ebd9383

2efe430bd95f9bb8fb03e16448ddf4f2a7c08d96f0cb433ae84bc3f361f104a4

## Detection & response playbook

Credential / info stealer

1.  ### Find it
    
    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for ethers-wallet-packages (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging ethers-wallet-packages across your stack and pipelines.
    
2.  ### If you installed it — respond
    
    ethers-wallet-packages 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 ethers-wallet-packages 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.
    
4.  ### How O3 protects you
    
    O3 blocks ethers-wallet-packages 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

No. ethers-wallet-packages on npm has been identified as a malicious package (versions 5.8.0, 5.8.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

## Campaign

IN-MAL-2026-003431IN-MAL-2026-003430GHSA-gm49-5q33-vf6fRLMA-2026-06222

## References

-   [npmjs.com](https://www.npmjs.com/package/ethers-wallet-packages/v/5.8.0)
-   [npmjs.com](https://www.npmjs.com/package/ethers-wallet-packages/v/5.8.2)
-   [github.com](https://github.com/advisories/GHSA-gm49-5q33-vf6f)

## Credits

-   Amazon Inspector · finder
-   ReversingLabs · finder

## Detect & block this

O3 blocks ethers-wallet-packages\-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](/malware-detection) [Runtime egress monitoring](/egress-monitor)

## Explore

[All malware advisories](/malware) [How O3 detects malware](/malware-database) [Vulnerability database](/vulnerability)