hellotesthimPyPI
Advisory published Updated
hellotesthim is a confirmed malicious PyPI package (MAL-2025-6521) 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 hellotesthim (PyPI)
What this malware does
Series of packages mostly with an obfuscated infostealer attempting to collect Chrome data. While discord webhook is usually set to an example, there are other, correct uploading URLs
Some of related packages only test partial malicious code, like webhooks from overwritten setup.py
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-07-0x9xnx
Reasons (based on the campaign):
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infostealer
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obfuscation
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exfiltration-browser-data
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exfiltration-crypto
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The package overrides the install command in setup.py to execute malicious code during installation.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for hellotesthim (version 0.1.1).
If you installed it — respond
hellotesthim 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 hellotesthim 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
Campaign
References
Credits
- Kamil Mańkowski (kam193)
- ReversingLabs · finder
Detect & block this
O3 blocks hellotesthim-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.