Which versions of olympuslib are malicious?

The following PyPI versions of olympuslib are flagged malicious: 99.99.0. Treat any of these as compromised.

How do I remediate olympuslib if I installed it?

olympuslib 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.

I already installed olympuslib — how do I know if it already compromised me?

If olympuslib 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.

Is olympuslib part of a known attack campaign?

Yes — olympuslib is associated with the 2026-09-amirgo4496, IN-MAL-2026-019643 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find olympuslib across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for olympuslib (version 99.99.0).

Malicious package

olympuslibPyPI

Advisory published Sep 4, 2026Updated Sep 4, 2026

olympuslib is a confirmed malicious PyPI package (MAL-2026-15928) that steals credentials and exfiltrates sensitive data (malicious version 99.99.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in olympuslib (PyPI)

MAL-2026-15928

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

pip uninstall olympuslib

What this malware does

Top-level init.py invokes a _canary() routine on import that serializes the entire os.environ dictionary along with socket.gethostname() and package identifiers, then POSTs the payload via urllib to https://vuorblucjega.dssldrf.net/python-install-log/olympuslib. Any secret-shaped environment variable present in the installer's process (CI tokens, cloud credentials, API keys, database URLs) is transmitted to the hardcoded external host. The package name and inflated 99.99.0 version, combined with a beacon shape that reports which internal hosts resolve the name from the public index, are consistent with a dependency-confusion harvesting package targeting private/internal package names.

During import, the package exfiltrates environment variables.

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

Campaign: 2026-09-amirgo4496

Reasons (based on the campaign):

exfiltration-env-variables
dependency-confusion
The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.

Malicious versions

1 flagged

99.99.0

Indicators of compromise (SHA-256)

cd83c1af6eb40f933f46c498402bb147ea6a5e559a51718fe0ffd775354473cc

fdcee7d29dcf5e9c04cc3528403c15c3359c6701eaf42f54ecaa2ac4c29a4b3c

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for olympuslib (version 99.99.0).
If you installed it — respond
olympuslib 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.
Did it already run?
If olympuslib 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. olympuslib on PyPI has been identified as a malicious package (version 99.99.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-09-amirgo4496IN-MAL-2026-019643

References

Credits

Amazon Inspector · finder
Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks olympuslib-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database