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Malicious package

hashstationPyPI

Advisory published Updated

hashstation is a confirmed malicious PyPI package (MAL-2025-191749) that steals credentials and exfiltrates sensitive data (malicious version 0.1.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in hashstation (PyPI)

MAL-2025-191749
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall hashstation

What this malware does

When using methods from the package, it downloads an obfuscated code from Github and puts it in multiple localisation. While it appears that this code is used to perform action user requested, deobfuscation reveals exfiltrating user's data instead.

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

Campaign: 2025-08-kertash

Reasons (based on the campaign):

  • exfiltration-generic

  • A Telegram webhook is used to send collected data.

  • obfuscation

  • action-hidden-in-lib-usage

Malicious versions

1 flagged
0.1.1

Indicators of compromise (SHA-256)

becfcce8864cf6811982f5d237c063fa94a91024047f3997b7cfcb39fde2b626
c4f136247c8a57eee83a1a36ee355c982d900b5f5b570a0936dc1df68db6d5f2

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for hashstation (version 0.1.1).

  2. If you installed it — respond

    hashstation 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 hashstation 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. hashstation on PyPI has been identified as a malicious package (version 0.1.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2025-08-kertash

References

Credits

  • Kamil Mańkowski (kam193)

Detect & block this

O3 blocks hashstation-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

hashstation (PyPI) malicious package — MAL-2025-191749 | O3 Security