helu

GHSA-fw7w-92fh-ff5f

Malicious code in helu (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.2.0`

## Source: kam193 (15a97c1f0e23d838c86d69a3ceae306071a9b4b8c17162a1f563aefe489ffbe4)
During import, the hidden code downloads and executes the second-stage code. After performing anti-analysis checks, it downloads a malicious executable and ensures its persistence.


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


Campaign: 2026-05-helu


Reasons (based on the campaign):


 - obfuscation


 - Downloads and executes a remote malicious script.


 - The package contains code to detect if it is running in a sandbox environment.


 - Downloads and executes a remote executable.


 - malware


 - persistence


 - covering-tracks

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/helu/MAL-2026-4357.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/helu
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/helu/MAL-2026-4357.json
- https://www.virustotal.com/gui/file/a14d17cd9f2e983795ed63f73373b94cb9eb047044a7b2f5269ac10c7db0499a/detection
- https://github.com/advisories/GHSA-fw7w-92fh-ff5f

Compromised versions (1)

= 0.2.0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.