mal-2025-5654
Vulnerability from ossf_malicious_packages
Published
2025-07-04 11:00
Modified
2025-12-11 09:27
Summary
Malicious code in malicus (PyPI)
Details

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

Source: kam193 (d151385056670ff22bfb80dc356c10ff622a77e115f8d81ee5f066220e05fda1)

The only goal of the package is to execute a webhook or a suspicious file during installation.

Closely related to 2025-07-0x9xnx - created after previous packages were quarantined, similar names, similar usage, but no clearly malicious parts.


Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: 2025-07-malimalo

Reasons (based on the campaign):

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

Source: ossf-package-analysis (a33ca8f3dec153ea010973822a2919bfa0530325bf4b037096177eb3c6ba9aed)

The OpenSSF Package Analysis project identified 'malicus' @ 0.0.1 (pypi) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "malicus"
      },
      "versions": [
        "0.0.1"
      ]
    }
  ],
  "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": "REPORTER"
    },
    {
      "contact": [
        "https://github.com/ossf/package-analysis",
        "https://openssf.slack.com/channels/package_analysis"
      ],
      "name": "OpenSSF: Package Analysis",
      "type": "FINDER"
    },
    {
      "contact": [
        "https://www.reversinglabs.com"
      ],
      "name": "ReversingLabs",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "import_time": "2025-07-08T05:39:10.264144376Z",
        "modified_time": "2025-07-04T11:00:53Z",
        "sha256": "a33ca8f3dec153ea010973822a2919bfa0530325bf4b037096177eb3c6ba9aed",
        "source": "ossf-package-analysis",
        "versions": [
          "0.0.1"
        ]
      },
      {
        "id": "RLMA-2025-03635",
        "import_time": "2025-08-01T10:07:12.383399166Z",
        "modified_time": "2025-07-31T19:15:35Z",
        "sha256": "511a0df9ce62865e7fe9d9ab88084449ca162955e421d25e18faea4a42d8cb02",
        "source": "reversing-labs",
        "versions": [
          "0.0.1"
        ]
      },
      {
        "id": "pypi/2025-07-malimalo/malicus",
        "import_time": "2025-12-02T22:30:56.188240021Z",
        "modified_time": "2025-07-04T11:41:06Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "ECOSYSTEM"
          }
        ],
        "sha256": "c82c6aaa8ce5fca384275ee10590977703f1b95785ff710809c4b28617464e52",
        "source": "kam193"
      },
      {
        "id": "pypi/2025-07-malimalo/malicus",
        "import_time": "2025-12-02T23:07:19.370315563Z",
        "modified_time": "2025-07-04T11:41:06Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "ECOSYSTEM"
          }
        ],
        "sha256": "d151385056670ff22bfb80dc356c10ff622a77e115f8d81ee5f066220e05fda1",
        "source": "kam193"
      },
      {
        "id": "pypi/2025-07-malimalo/malicus",
        "import_time": "2025-12-10T21:38:58.495928349Z",
        "modified_time": "2025-07-04T11:41:06Z",
        "sha256": "d9368e68116db74a18b2468d7c138dec41ea67b55922d40ceaa5acf939589e48",
        "source": "kam193",
        "versions": [
          "0.0.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (d151385056670ff22bfb80dc356c10ff622a77e115f8d81ee5f066220e05fda1)\nThe only goal of the package is to execute a webhook or a suspicious file during installation.\n\nClosely related to 2025-07-0x9xnx - created after previous packages were quarantined, similar names, similar usage, but no clearly malicious parts.\n\n\n---\n\nCategory: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research \u0026 co, with clearly low-harm possibilities.\n\n\nCampaign: 2025-07-malimalo\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## Source: ossf-package-analysis (a33ca8f3dec153ea010973822a2919bfa0530325bf4b037096177eb3c6ba9aed)\nThe OpenSSF Package Analysis project identified \u0027malicus\u0027 @ 0.0.1 (pypi) as malicious.\n\nIt is considered malicious because:\n\n- The package communicates with a domain associated with malicious activity.\n",
  "id": "MAL-2025-5654",
  "modified": "2025-12-11T09:27:53Z",
  "published": "2025-07-04T11:00:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/malicus"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in malicus (PyPI)"
}


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Sightings

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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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