Which versions of transformars are malicious?

The following PyPI versions of transformars are flagged malicious: 4.42.3, 4.42.3.post1, 4.42.3.post2, 4.42.3.post4. Treat any of these as compromised.

How do I remediate transformars if I installed it?

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

If transformars 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 transformars part of a known attack campaign?

Yes — transformars is associated with the 2024-07-transformars-research 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 transformars across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for transformars (4 malicious versions).

Malicious package

transformarsPyPI

Advisory published Jul 7, 2024Updated Dec 31, 2025

transformars is a confirmed malicious PyPI package (MAL-2024-12365) that steals credentials and exfiltrates sensitive data (malicious versions 4.42.3, 4.42.3.post1, 4.42.3.post2…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in transformars (PyPI)

MAL-2024-12365

Immediate action

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

pip uninstall transformars

What this malware does

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

Campaign: 2024-07-transformars-research

Reasons (based on the campaign):

cryptominer

Malicious versions

4 flagged

4.42.34.42.3.post14.42.3.post24.42.3.post4

Indicators of compromise (SHA-256)

a9f194914150652a4fbeeaed518349f1c892bf5d5ac36d35817bba4451f3cbad

21a990a504294c9083adc25cefdd9ed927574220d78968f43fe1469b344d1229

bf35525c005ef155bc90ebb76f94c72035d42beb0419ab32a2297cfaad4c2cd2

09de8e8b68f7454ff5a32827e4ceb127b9d5f3a23198bc77488fe32b0bdedf76

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for transformars (4 malicious versions).
If you installed it — respond
transformars 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 transformars 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. transformars on PyPI has been identified as a malicious package (versions 4.42.3, 4.42.3.post1, 4.42.3.post2, 4.42.3.post4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2024-07-transformars-research

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193)

Detect & block this

O3 blocks transformars-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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