Which versions of eth-web3-utils are malicious?

The following PyPI versions of eth-web3-utils are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate eth-web3-utils if I installed it?

eth-web3-utils 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 eth-web3-utils — how do I know if it already compromised me?

If eth-web3-utils 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.

Is eth-web3-utils part of a known attack campaign?

Yes — eth-web3-utils is associated with the 2026-05-solana-wallet-sdk campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find eth-web3-utils across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for eth-web3-utils (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging eth-web3-utils across your stack and pipelines.

Malicious package

eth-web3-utilsPyPI

Malicious code in eth-web3-utils (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2026-3379

Immediate action

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

pip uninstall eth-web3-utils

What this malware does

Code pretends to be an ETH utility and exfiltrates the given seed/private key

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-05-solana-wallet-sdk

Reasons (based on the campaign):

files-exfiltration
crypto-related
exfiltration-crypto

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

ab01b68589d4f3b1e8686ed007d522f24c8259049cb211a023ac3f3ff8f56ce4

Detection & response playbook

Credential / info stealer

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for eth-web3-utils (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging eth-web3-utils across your stack and pipelines.
If you installed it — respond
eth-web3-utils 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 eth-web3-utils 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 eth-web3-utils 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. eth-web3-utils on PyPI 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.

Campaign

2026-05-solana-wallet-sdk

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks eth-web3-utils-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