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Part of a larger attack: 2025-08-k7eel published 31 malicious packages. See the full campaign →
Malicious package

fuckyoubitchPyPI

Advisory published Updated

fuckyoubitch is a confirmed malicious PyPI package (MAL-2025-47770) 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 fuckyoubitch (PyPI)

MAL-2025-47770
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall fuckyoubitch

What this malware does

Importing the module downloads and executes widely recognized malware

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

Campaign: 2025-08-k7eel

Reasons (based on the campaign):

  • Downloads and executes a remote executable.

  • malware

Malicious versions

1 flagged
0.1.1

Indicators of compromise (SHA-256)

5c1a3fb620184918136ffb0f7ef1c0ff04dfe5a81b4b4d59e0ca796c56e168c6
832d4ed53fb19c8a416bde9c4ded680f553be7bc211f6cc6e557491a0eaf305a
d4b44b0fb797b54e70ce9da891342e05380f0a6aa9ff1c8fb43a3a65e7babe97
581eedd691545611165972b1bddb97aa84e23b259da34b7605ecc85e3f306346

Detection & response playbook

Credential / info stealer
  1. Find it

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

  2. If you installed it — respond

    fuckyoubitch 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 fuckyoubitch 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. fuckyoubitch 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

RLMA-2025-047712025-08-k7eelRLUA-2026-00339

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks fuckyoubitch-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

fuckyoubitch (PyPI) malicious package — MAL-2025-47770 | O3 Security