VYPR

pypi · Malicious package advisory

Malware

spellcheckers

MAL-2025-191533

Malicious code in spellcheckers (PyPI)

Details


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## Source: google-open-source-security (c83520810b148ec74e509b16851a1fafa1bec576b502a5debabd9b52520d9754)
This package is malicious and typosquating the legitimate pyspellchecker library.
This package will deploy a remote-access trojan that allows the attacker full
control of the victim's host.

## Source: kam193 (6585d4c29dd97a1e46f30047c7d67a6e4bbb19f9b41bc1f9ff0b5fc34b839c75)
Package contains hidden code that is effectively run during importing and downloads second stage code. Then, a process running in background periodically connects to a remote host and waits for next code to execute


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


Campaign: 2025-11-spellcheckers


Reasons (based on the campaign):


 - obfuscation


 - Downloads and executes a remote malicious script.


 - The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.

Compromised versions (7)

  • 1.4.0
  • 1.3.0
  • 1.2.0
  • 1.1.1
  • 1.1.0
  • 1.0.0
  • 1.5.0

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