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OpenAdvisories
Malicious MAL-2026-2431

nwin32tls

PyPI package · versions 0.0.1, 0.0.2, 0.0.3, 0.0.5, 0.0.6, 0.0.7

Reported Apr 2, 2026 · Updated Apr 2, 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 (a47778618cad57dbc584afdff7ed138032b69c423a9812e1bc8f86c13129f01d)
Importing the module starts a loop that listens to key strokes and on every capslock press exfiltrates screenshot to a hardcoded location.

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

Campaign: 2026-04-old-nwin32tls

Reasons (based on the campaign):

- spyware-like