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Part of a larger attack: 2024-11-byted-dast published 183 malicious packages. See the full campaign →
Malicious package

midi-melady-extractionPyPI

Advisory published Updated

midi-melady-extraction is a confirmed malicious PyPI package (MAL-2024-11632) that steals credentials and exfiltrates sensitive data (malicious version 94.6). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in midi-melady-extraction (PyPI)

MAL-2024-11632
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall midi-melady-extraction

What this malware does

A campaign of probably pentest packages flooding PYPI. Installing the package or importing the module triggers reporting basic info like hostname, path and the username to the package author. There is no other purpose of the package.

Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: 2024-11-byted-dast

Reasons (based on the campaign):

  • The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.

  • typosquatting

  • dependency-confusion

Malicious versions

1 flagged
94.6

Indicators of compromise (SHA-256)

de6c871f65aa4cce7b41aace6a1492012eef5cf1d47ede204dd16148b9c8b2b2
47393010d50c730a2cae2fc4be4f01e39385f9f11250ca7cacea63d81d43cc47
2ea216ddb559e40724229a4744f930ac8f9189582a30c9151da9036cd1e8c8f4
c756e4e2d9fe364ce5006e9030ef014ca885d39a9b9ae7989a13f9135a526647
22ed37e9380c696bb188d8448c90648e288f6c0a192d0e2f68858b7c1968f9fb

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for midi-melady-extraction (version 94.6).

  2. If you installed it — respond

    midi-melady-extraction 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 midi-melady-extraction 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. midi-melady-extraction on PyPI has been identified as a malicious package (version 94.6 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-110872024-11-byted-dastRLUA-2026-00519

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks midi-melady-extraction-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

midi-melady-extraction (PyPI) malicious package — MAL-2024-11632 | O3 Security