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Malicious package

journey-teste-shellhelloPyPI

Advisory published Updated

journey-teste-shellhello is a confirmed malicious PyPI package (MAL-2026-18203) that steals credentials and exfiltrates sensitive data (malicious version 0.2.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in journey-teste-shellhello (PyPI)

MAL-2026-18203
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall journey-teste-shellhello

What this malware does

In specific environments, package starts a reverse shell during installation.

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
0.2.0

Indicators of compromise (SHA-256)

b0297ac29ad3587325dc37510f2af62bef8b7d92f76e7f123739fc6f49cead0c
091ecd3d988aa217de7e20eb02048092f09f8ec9f9064883e816778d580e34cd

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for journey-teste-shellhello (version 0.2.0).

  2. If you installed it — respond

    journey-teste-shellhello 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 journey-teste-shellhello 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-teste-shellhello on PyPI has been identified as a malicious package (version 0.2.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-10-journey-test-helloshell

References

Credits

  • Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks journey-teste-shellhello-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

journey-teste-shellhello (PyPI) malicious package — MAL-2026-18203 | O3 Security