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Part of a larger attack: 2024-08-embeds-RealtekHDAudioManager published 40 malicious packages. See the full campaign →
Malicious package

pyloyPyPI

Advisory published Updated

pyloy is a confirmed malicious PyPI package (MAL-2024-10119) that steals credentials and exfiltrates sensitive data (malicious version 0.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in pyloy (PyPI)

MAL-2024-10119
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall pyloy

What this malware does

Importing a module starts downloading and executing an infostealer, widely identified by AV/sandboxes.

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

Campaign: 2024-08-embeds-RealtekHDAudioManager

Reasons (based on the campaign):

  • infostealer

  • Downloads and executes a remote executable.

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

6b9abfa8480d9cb408b52d59dfd038dc6d1b6e6896ce9cae74da74f18ae82031
2eee91f420f40c791e2da4b56eeef80833d691c773eb0813462cc5020b91218f
44deac488d2a8cdb533662db66592095a36ab35a491b4e9415c597cde0d37eab
fcdc9a095bbbefcbbf13c28a209f522deabee6a34ce16b5406f24746792f76e2
753ef9f20bfb2780e35dbddb25ae4d19922c232611f4bdb62530a1874f244c18

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for pyloy (version 0.0.1).

  2. If you installed it — respond

    pyloy 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 pyloy 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. pyloy on PyPI has been identified as a malicious package (version 0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2024-089672024-08-embeds-RealtekHDAudioManagerRLUA-2026-00640

References

Credits

  • Kamil Mańkowski (kam193)
  • ReversingLabs · finder

Detect & block this

O3 blocks pyloy-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

pyloy (PyPI) malicious package — MAL-2024-10119 | O3 Security