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

hexdecnetPyPI

Advisory published Updated

hexdecnet is a confirmed malicious PyPI package (MAL-2025-191758) 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 hexdecnet (PyPI)

MAL-2025-191758
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall hexdecnet

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)

a83502d39152bd9366691fb83ea556e9d7c0062799bc72c0ced912c449ab3189
4ca5c3aa5b553fffaca36241e0e3a6144c9b661b9e0cb77fd93ae34fc6b1ed7e
1d238807f0d58db382e38f2bfd59b00d38daaff535cb3c304bc23e94e9a5275d
0bb1559e21c7ead7d9b4cdf698a335d7d65b973a4fc6eabdc5c53495228e33cd

Detection & response playbook

Credential / info stealer
  1. Find it

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

  2. If you installed it — respond

    hexdecnet 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 hexdecnet 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. hexdecnet 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

2025-04-tronixRLMA-2025-06568RLUA-2026-00391

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks hexdecnet-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

hexdecnet (PyPI) malicious package — MAL-2025-191758 | O3 Security