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Part of a larger attack: 2025-04-tronix published 67 malicious packages. See the full campaign →
Malicious package

tronlastpyPyPI

Advisory published Updated

tronlastpy is a confirmed malicious PyPI package (MAL-2025-48908) that steals credentials and exfiltrates sensitive data (malicious version 0.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in tronlastpy (PyPI)

MAL-2025-48908
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall tronlastpy

What this malware does

Package appears to be designed for private key exfiltration, but no known usage. The name appears to be related to the cryptocurrency TRX (Tron / Tronix). Some packages additionally clone the readme of other, legit libraries. The similar packages are repeating uploaded to PyPI

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

Campaign: 2025-04-tronix

Reasons (based on the campaign):

  • exfiltration-generic

  • crypto-related

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

a5f493ff9d2885dcc72500838542f1ada78bab0b88e6ccf388c6c056af20d235
5ae29c67ac86516898ab5e71955987f9ee3ccf4c5b142205f2ff0db4ba5a6b66
45dfbc47ce737fe6b6913f21effbdaebc4a156b837c598449f0f96a6b15754a3
59035d7a9480c39af1f6928348a5b5f98a7c490a5e0c1b38a89a4feaeb727b47

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for tronlastpy (version 0.0.1).

  2. If you installed it — respond

    tronlastpy 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 tronlastpy 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. tronlastpy on PyPI has been identified as a malicious package (version 0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-052272025-04-tronixRLUA-2026-00855

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks tronlastpy-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

tronlastpy (PyPI) malicious package — MAL-2025-48908 | O3 Security