Which versions of web3-meme-tool are malicious?

The following PyPI versions of web3-meme-tool are flagged malicious: 0.1.2. Treat any of these as compromised.

How do I remediate web3-meme-tool if I installed it?

web3-meme-tool 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 web3-meme-tool — how do I know if it already compromised me?

If web3-meme-tool 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 web3-meme-tool part of a known attack campaign?

Yes — web3-meme-tool is associated with the 2026-02-metadata-checker 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 web3-meme-tool 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 web3-meme-tool (version 0.1.2). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging web3-meme-tool across your stack and pipelines.

Malicious package

web3-meme-toolPyPI

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

MAL-2026-763

Immediate action

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

pip uninstall web3-meme-tool

What this malware does

Disguised as metadata checker, packages are designed to exfiltrate hardcoded or given data to an obfuscated remote target

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

Campaign: 2026-02-metadata-checker

Reasons (based on the campaign):

exfiltration-generic
obfuscation

Malicious versions

1 flagged

0.1.2

Indicators of compromise (SHA-256)

62aebca1848d232cb70d5bacf954626ca7d0fd1d5680bb8ab45777aa9347f5ed

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 web3-meme-tool (version 0.1.2). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging web3-meme-tool across your stack and pipelines.
If you installed it — respond
web3-meme-tool 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 web3-meme-tool 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 web3-meme-tool 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. web3-meme-tool on PyPI has been identified as a malicious package (version 0.1.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-02-metadata-checker

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks web3-meme-tool-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