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

giantmidi-pianoPyPI

Advisory published Updated

giantmidi-piano is a confirmed malicious PyPI package (MAL-2024-11601) that steals credentials and exfiltrates sensitive data (malicious version 912.6). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in giantmidi-piano (PyPI)

MAL-2024-11601
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall giantmidi-piano

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
912.6

Indicators of compromise (SHA-256)

ea8b0e2b101bc5d165ad0738cd5ce384cc68668aef260e50a71faaf7ccec9e75
4d6a75b0af6f647e39e886149968501350e6ba2713e54bf697f6a1366fb85594
84fa69b27b20b3760633e27545f0bf5895b02cf0566fb6b75465a581802f4975
d18c5cd9a6ab88d44813d17db8a4d62e3fb7d3dea9cf7858f24e22bfcb078fb4
18ebc47fcdd34ab9cfbdabea1852b4d19881fba42768bf1de642458b18eb751f

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for giantmidi-piano (version 912.6).

  2. If you installed it — respond

    giantmidi-piano 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 giantmidi-piano 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. giantmidi-piano on PyPI has been identified as a malicious package (version 912.6 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-110532024-11-byted-dastRLUA-2026-00352

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks giantmidi-piano-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

giantmidi-piano (PyPI) malicious package — MAL-2024-11601 | O3 Security