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OpenAdvisories
Malicious MAL-2026-18300

claudeopusenifile

PyPI package · versions 0.1.3

Reported Oct 25, 2026 · Updated Oct 26, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: kam193 (051daf7dfb8c28210996afbf561646b38781f563483e6c2e7471add0a6021885)
During installation, obfuscated code is used to fetch code hidden in an image containing a Python application with a native extension module. This module holds an obfuscated infostealer which collects sensitive data and exfiltrates them to a C2 server retrieved from transaction history in the Polygon blockchain.

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

Campaign: 2026-09-donutautosellsrc

Reasons (based on the campaign):

- infostealer

- Downloads and executes a remote executable.

- obfuscation

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

- malware

- native-extension

- steganography

- c2-in-blockchain

Indicators of compromise

Shown defanged and not clickable. Search any indicator to find other packages using it.

Domains

URLs