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Malicious package

netpackatPyPI

Advisory published Updated

netpackat is a confirmed malicious PyPI package (MAL-2025-5120) that steals credentials and exfiltrates sensitive data (malicious version 1.0.4). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in netpackat (PyPI)

MAL-2025-5120
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall netpackat

What this malware does

Code download and runs an executable, which is widely recognized as malware. The system is also configured to run it on startup, and the file is saved in paths attempting to look as a system file.

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

Campaign: 2025-05-requestpackat

Reasons (based on the campaign):

  • Downloads and executes a remote executable.

  • malware

  • peristence-autorun

Malicious versions

1 flagged
1.0.4

Indicators of compromise (SHA-256)

364bc6883ac08ccaa71c86fbd4ddea8c088ae2724d571bffab75d896ea1b9277
fca30f947fe155b7e74e8f753caff8d20377ff4090a95512595c7bdc413266db
f0f971eaa8aa4f59d981802034020fcd9b7c6008c2e9ed41a868a9e3186e7eed
4d00cb14bddfeac7255045a34f499cbe51fcf96a229ab60e5f4fb69d3cd5b745
289b33921d587bd0778af30e88dffd763cd67b419524fdb81cdb67e3f25a113f

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for netpackat (version 1.0.4).

  2. If you installed it — respond

    netpackat 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 netpackat 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. netpackat on PyPI has been identified as a malicious package (version 1.0.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-030172025-05-requestpackatRLUA-2026-00553

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks netpackat-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

netpackat (PyPI) malicious package — MAL-2025-5120 | O3 Security