mal-2026-933
Vulnerability from ossf_malicious_packages
Published
2026-02-17 23:14
Modified
2026-02-17 23:14
Summary
Malicious code in pywin-simple-gui (PyPI)
Details

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

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.


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

Credits

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pywin-simple-gui"
      },
      "versions": [
        "1.0.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "REPORTER"
    }
  ],
  "database_specific": {
    "iocs": {
      "domains": [
        "loejfrw2.ignorelist.com"
      ],
      "urls": [
        "http://loejfrw2.ignorelist.com/opt/adm/lct/util32X.exe",
        "http://loejfrw2.ignorelist.com/opt/adm/lct/Mont.txt"
      ]
    },
    "malicious-packages-origins": [
      {
        "id": "pypi/2026-02-pywin-simple-gui/pywin-simple-gui",
        "import_time": "2026-02-17T23:43:33.858164494Z",
        "modified_time": "2026-02-17T23:14:17.43781Z",
        "sha256": "43b40c0dbbbc187822a28a401194873adc73d13e531f2789c4227374f7ec9e26",
        "source": "kam193",
        "versions": [
          "1.0.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (43b40c0dbbbc187822a28a401194873adc73d13e531f2789c4227374f7ec9e26)\nThe 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.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-02-pywin-simple-gui\n\n\nReasons (based on the campaign):\n\n\n - impersonation\n\n\n - Downloads and executes a remote executable.\n\n\n - modify-system-without-consent\n\n\n - crypto-related\n",
  "id": "MAL-2026-933",
  "modified": "2026-02-17T23:14:17Z",
  "published": "2026-02-17T23:14:17Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://www.virustotal.com/gui/file/1d26323ed3271a04242cb9054eb2ea2c52fb64a971cff9affa38d55e02cd50d2/detection"
    },
    {
      "type": "EVIDENCE",
      "url": "https://tria.ge/260217-2y4mksat6h/behavioral1"
    },
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/pywin-simple-gui"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in pywin-simple-gui (PyPI)"
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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