What does the lazmat malware do?

Importing the module starts a telegram bot that connects to a chat and executes provided commands Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2025-07-talbat Reasons (based on the campaign): - The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine. - The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine.

Which versions of lazmat are malicious?

The following PyPI versions of lazmat are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate lazmat if I installed it?

lazmat 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 lazmat — how do I know if it already compromised me?

If lazmat 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.

Is lazmat part of a known attack campaign?

Yes — lazmat is associated with the 2025-07-talbat 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 lazmat across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for lazmat (version 1.0.0).

Malicious package

lazmatPyPI

Advisory published Jul 19, 2025Updated Dec 12, 2025

lazmat is a confirmed malicious PyPI package (MAL-2025-191779) 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 lazmat (PyPI)

MAL-2025-191779

Immediate action

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

pip uninstall lazmat

What this malware does

Importing the module starts a telegram bot that connects to a chat and executes provided commands

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

Campaign: 2025-07-talbat

Reasons (based on the campaign):

The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.
The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine.

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

d08bef08c962f7105c6e49311480072e692b8516a5b6f0818d8e01a98f688b7d

292e8512aa9e77a20a04a58cee3529ea31b9451e5c9067bbad7be57b5eb8c7fb

50553263d33e652a32286691d2feaf4b7e666cbeb91481d616091846338eb3e9

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for lazmat (version 1.0.0).
If you installed it — respond
lazmat 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 lazmat 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. lazmat 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

2025-07-talbat

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193)

Detect & block this

O3 blocks lazmat-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

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