websynapse

GHSA-v36w-8ccr-hv4w

Malicious code in websynapse (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 0.1`

## Source: kam193 (7323a05444284204de7701ff8b7a738bc155cb22356cf93fc1399dedad5afa46)
The package contains highly obfuscated content, that install another, downloaded from a remote location obfuscated script in the installation path of the 'requests' package, and marks it as a hidden system file. In addition, another file contains a code that imitates doing some meaningful activity.

Later attempts hide the malicious code in a separated package, downloaded from Test PyPI.


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


Campaign: 2024-12-httpfluent


Reasons (based on the campaign):


 - obfuscation


 - modify-system-without-consent


 - Downloads and executes a remote malicious script.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/websynapse/MAL-2025-1007.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/websynapse
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/websynapse/MAL-2025-1007.json
- https://github.com/advisories/GHSA-v36w-8ccr-hv4w

Compromised versions (1)

= 0.1

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