mal-2025-6552
Vulnerability from ossf_malicious_packages
Published
2025-06-09 11:26
Modified
2025-12-11 09:27
Summary
Malicious code in my-fun-tools (PyPI)
Details

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

Source: kam193 (6642f3653e49e0a80b7fadf4c06bc64cba8a1a359772f1c7a668888278348fd6)

During installation, the obfuscated code attempts to insert a modified Python DLL and runs a code.


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

Campaign: 2025-06-my-fun-tools

Reasons (based on the campaign):

  • The package overrides the install command in setup.py to execute malicious code during installation.

  • obfuscation


{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "my-fun-tools",
        "purl": "pkg:pypi/my-fun-tools"
      },
      "versions": [
        "0.1.1",
        "0.1.2"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)"
    },
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "ANALYST"
    },
    {
      "contact": [
        "https://www.reversinglabs.com"
      ],
      "name": "ReversingLabs",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "RLMA-2025-03649",
        "import_time": "2025-08-01T10:07:12.773672815Z",
        "modified_time": "2025-07-31T19:15:48Z",
        "sha256": "f8229907a1c2b8e9a4d1013f6bf6232b3bf902a4b93a2a5750a0b8b95cf18355",
        "source": "reversing-labs",
        "versions": [
          "0.1.1",
          "0.1.2"
        ]
      },
      {
        "id": "pypi/2025-06-my-fun-tools/my-fun-tools",
        "import_time": "2025-12-02T22:30:55.350941441Z",
        "modified_time": "2025-06-09T11:26:07Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "ECOSYSTEM"
          }
        ],
        "sha256": "2b06bd8806e27153d3e50bfa9d87e1de02e33d2dbf117494f1c37cf318f6a253",
        "source": "kam193"
      },
      {
        "id": "pypi/2025-06-my-fun-tools/my-fun-tools",
        "import_time": "2025-12-02T23:07:18.381918051Z",
        "modified_time": "2025-06-09T11:26:07Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "ECOSYSTEM"
          }
        ],
        "sha256": "6642f3653e49e0a80b7fadf4c06bc64cba8a1a359772f1c7a668888278348fd6",
        "source": "kam193"
      },
      {
        "id": "pypi/2025-06-my-fun-tools/my-fun-tools",
        "import_time": "2025-12-10T21:38:57.604620203Z",
        "modified_time": "2025-06-09T11:26:07Z",
        "sha256": "c5bae316cd4e800afec4b840d75d5ff19324781ce4f0a9e754f2784ff6eeabf0",
        "source": "kam193",
        "versions": [
          "0.1.1",
          "0.1.2"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (6642f3653e49e0a80b7fadf4c06bc64cba8a1a359772f1c7a668888278348fd6)\nDuring installation, the obfuscated code attempts to insert a modified Python DLL and runs a code.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2025-06-my-fun-tools\n\n\nReasons (based on the campaign):\n\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n\n\n - obfuscation\n",
  "id": "MAL-2025-6552",
  "modified": "2025-12-11T09:27:53Z",
  "published": "2025-06-09T11:26:07Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/my-fun-tools"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in my-fun-tools (PyPI)"
}


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Sightings

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  • 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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