isb

GHSA-79v4-9wx6-m78q

Malicious code in isb (PyPI)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: kam193 (93750cbddba7897fde1d31836971e11082ad2076012c7caf708980de45827840)
Starting the module initiates an infostealer with a Telegram bot and RAT-like functionality and hardcoded credentials. The code automatically adds itself to autostart, collects some credentials, and also awaits further commands. The code is capable of exfiltrating browser data, files, taking screenshots, recording audio and modifying some system configurations.


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


Campaign: 2026-02-isb


Reasons (based on the campaign):


 - infostealer


 - exfiltration-browser-data


 - exfiltration-credentials


 - peristence-autorun


 - rat


 - spyware-like


 - files-exfiltration


 - iritating-computer-activity

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/isb/MAL-2026-1090.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/isb
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/isb/MAL-2026-1090.json
- https://github.com/advisories/GHSA-79v4-9wx6-m78q

Compromised versions (1)

= 1.0.0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.