What does the journey-test-hellospy malware do?

During installation, package exfiltrates potentially sensitive environmental variables Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2026-10-journey-test-helloshell 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. - The package overrides the install command in setup.py to execute malicious code during installation. - targetted-attack

Which versions of journey-test-hellospy are malicious?

The following PyPI versions of journey-test-hellospy are flagged malicious: 0.1.1. Treat any of these as compromised.

How do I remediate journey-test-hellospy if I installed it?

journey-test-hellospy 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 journey-test-hellospy — how do I know if it already compromised me?

If journey-test-hellospy 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 journey-test-hellospy part of a known attack campaign?

Yes — journey-test-hellospy is associated with the 2026-10-journey-test-helloshell 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 journey-test-hellospy across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for journey-test-hellospy (version 0.1.1).

Malicious package

journey-test-hellospyPyPI

Advisory published Oct 21, 2026Updated Oct 21, 2026

journey-test-hellospy is a confirmed malicious PyPI package (MAL-2026-18133) that steals credentials and exfiltrates sensitive data (malicious version 0.1.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in journey-test-hellospy (PyPI)

MAL-2026-18133

Immediate action

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

pip uninstall journey-test-hellospy

What this malware does

During installation, package exfiltrates potentially sensitive environmental variables

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

Campaign: 2026-10-journey-test-helloshell

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.
The package overrides the install command in setup.py to execute malicious code during installation.
targetted-attack

Malicious versions

1 flagged

0.1.1

Indicators of compromise (SHA-256)

418fea1fe789e9a44c77c08c9135b3da66b773882c9fb2757094c3f55b04321b

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for journey-test-hellospy (version 0.1.1).
If you installed it — respond
journey-test-hellospy 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 journey-test-hellospy 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. journey-test-hellospy on PyPI has been identified as a malicious package (version 0.1.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-10-journey-test-helloshell

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · analyst

Detect & block this

O3 blocks journey-test-hellospy-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