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OpenAdvisories
Malicious MAL-2026-933

pywin-simple-gui

PyPI package · versions 1.0.0

Reported Feb 17, 2026 · Updated Feb 17, 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 (43b40c0dbbbc187822a28a401194873adc73d13e531f2789c4227374f7ec9e26)
The package pretends to be a development helper but, in fact, downloads a remote executable. Dynamic analysis reveals actions like disabling Windows Defender and interest in cryptocurrencies as well as using Telegram as C2.

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

Campaign: 2026-02-pywin-simple-gui

Reasons (based on the campaign):

- impersonation

- Downloads and executes a remote executable.

- modify-system-without-consent

- crypto-related

Indicators of compromise

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

Domains

URLs