mal-2026-2431
Vulnerability from ossf_malicious_packages
Published
2026-04-02 20:26
Modified
2026-04-02 20:26
Summary
Malicious code in nwin32tls (PyPI)
Details

-= Per source details. Do not edit below this line.=-

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.

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

Campaign: 2026-04-old-nwin32tls

Reasons (based on the campaign):

  • spyware-like
Credits
Kamil Mańkowski (kam193) github.com/kam193 bad-packages.kam193.eu/
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "nwin32tls"
      },
      "versions": [
        "0.0.1",
        "0.0.2",
        "0.0.3",
        "0.0.5",
        "0.0.6",
        "0.0.7"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "REPORTER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "pypi/2026-04-old-nwin32tls/nwin32tls",
        "import_time": "2026-04-02T20:47:26.849020058Z",
        "modified_time": "2026-04-02T20:26:19.105445Z",
        "sha256": "a47778618cad57dbc584afdff7ed138032b69c423a9812e1bc8f86c13129f01d",
        "source": "kam193",
        "versions": [
          "0.0.1",
          "0.0.2",
          "0.0.3",
          "0.0.5",
          "0.0.6",
          "0.0.7"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (a47778618cad57dbc584afdff7ed138032b69c423a9812e1bc8f86c13129f01d)\nImporting the module starts a loop that listens to key strokes and on every capslock press exfiltrates screenshot to a hardcoded location.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-04-old-nwin32tls\n\n\nReasons (based on the campaign):\n\n\n - spyware-like\n",
  "id": "MAL-2026-2431",
  "modified": "2026-04-02T20:26:19Z",
  "published": "2026-04-02T20:26:19Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/nwin32tls"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in nwin32tls (PyPI)"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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