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pypi · Malicious package advisory

Malware

codefrequencychecker

MAL-2026-126

Malicious code in codefrequencychecker (PyPI)

Details


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## Source: kam193 (4202ead7b36e01a039c10a9379f617de02b50d5a69d5923652cfafb6f22067b6)
Package exfiltrates browser cookies and passwords, and starts a Telegram bot allowing re-exfiltrating later.


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


Campaign: 2026-01-codefrequencychecker


Reasons (based on the campaign):


 - exfiltration-browser-data


 - A Telegram webhook is used to send collected data.


 - infostealer

Compromised versions (5)

  • 0.0.1
  • 0.0.2
  • 0.0.3
  • 0.0.5
  • 0.0.7

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