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OpenAdvisories
Malicious MAL-2025-191847

pytzv

PyPI package · versions 0.2.0, 0.1.0, 0.4.0, 0.3.0

Reported Apr 25, 2025 · Updated Dec 31, 2025

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 (bc7b0a2cddf6ee0cc4d688f4136758e0d7aaa99707aa5dd82505d84631d77720)
Importing the module starts exfiltration of ".session" files, which appear to be used at least by one Telegram library (https://docs.telethon.dev/en/stable/concepts/sessions.html#what-are-sessions) to store credentials

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

Campaign: 2025-04-qtpv

Reasons (based on the campaign):

- files-exfiltration

- target:telegram