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Malicious package

astrono2mioPyPI

Advisory published Updated

astrono2mio is a confirmed malicious PyPI package (MAL-2025-1962) that steals credentials and exfiltrates sensitive data (malicious version 0.6). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in astrono2mio (PyPI)

MAL-2025-1962
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall astrono2mio

What this malware does

setup.py contains highly obfuscated infostealer

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

Campaign: 2025-02-astronomio

Reasons (based on the campaign):

  • infostealer

  • dependency-confusion

  • obfuscation

  • exfiltration-browser-data

  • exfiltration-crypto

Malicious versions

1 flagged
0.6

Indicators of compromise (SHA-256)

1112e79b4907928f3f24161bf74faab51942ee30d6a59d8a7a491d30719e26c3
d88ee9c1f73faaf46a1674cfc815eb2288282d0ffcb39506bbc74ae966cf47a6
5afe73e89e82bc8240384de865b69392288e63d7612b403c8ce3a6c6f42273cb
d0ba3d5f73ed5ee02c92e6bda2d9913445fbaad16d102a75ae9f31df7e547f96
187d71f740cf34f524ac7fb3a04de71869bac7bef4ce3717d27e946bc17a4226

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for astrono2mio (version 0.6).

  2. If you installed it — respond

    astrono2mio 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 astrono2mio 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. astrono2mio on PyPI has been identified as a malicious package (version 0.6 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-011972025-02-astronomioRLUA-2026-00083

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks astrono2mio-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

astrono2mio (PyPI) malicious package — MAL-2025-1962 | O3 Security