Which versions of h13t0ry-hello-demo are malicious?

The following PyPI versions of h13t0ry-hello-demo are flagged malicious: 0.1.0. Treat any of these as compromised.

How do I remediate h13t0ry-hello-demo if I installed it?

h13t0ry-hello-demo 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 h13t0ry-hello-demo — how do I know if it already compromised me?

If h13t0ry-hello-demo 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 h13t0ry-hello-demo part of a known attack campaign?

Yes — h13t0ry-hello-demo is associated with the 2026-10-h13t0ry-hello-demo 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 h13t0ry-hello-demo across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for h13t0ry-hello-demo (version 0.1.0).

Malicious package

h13t0ry-hello-demoPyPI

Advisory published Oct 27, 2026Updated Oct 27, 2026

h13t0ry-hello-demo is a confirmed malicious PyPI package (MAL-2026-18336) that steals credentials and exfiltrates sensitive data (malicious version 0.1.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in h13t0ry-hello-demo (PyPI)

MAL-2026-18336

Immediate action

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

pip uninstall h13t0ry-hello-demo

What this malware does

During import package starts a reverse shell

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

Campaign: 2026-10-h13t0ry-hello-demo

Reasons (based on the campaign):

The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine.

Malicious versions

1 flagged

0.1.0

Indicators of compromise (SHA-256)

e27409f6c0ba5c7e7ba22f21c8b4806686ae8b64f4d7daf2dd9a7e6182bef5ab

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for h13t0ry-hello-demo (version 0.1.0).
If you installed it — respond
h13t0ry-hello-demo 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 h13t0ry-hello-demo 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. h13t0ry-hello-demo on PyPI has been identified as a malicious package (version 0.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-10-h13t0ry-hello-demo

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks h13t0ry-hello-demo-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