mal-2025-191799
Vulnerability from ossf_malicious_packages
Published
2025-11-22 17:01
Modified
2025-12-11 17:12
Summary
Malicious code in mzip (PyPI)
Details

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

Source: kam193 (cfa6ef3ee944ed5eef4429c7c9ec9488d9c2c70be6435ee1019851527272a9e4)

During initialization of the archive-support class, the package starts code from another file and downloads multi-stage malware


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

Campaign: 2025-11-uzip

Reasons (based on the campaign):

  • Downloads and executes a remote executable.

  • obfuscation

  • malware


{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "mzip"
      },
      "versions": [
        "0.1.0"
      ]
    }
  ],
  "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"
    }
  ],
  "database_specific": {
    "iocs": {
      "ips": [
        "77.105.161.164"
      ],
      "urls": [
        "http://77.105.161.164:3301/library",
        "http://77.105.161.164:3301/die1"
      ]
    },
    "malicious-packages-origins": [
      {
        "id": "pypi/2025-11-uzip/mzip",
        "import_time": "2025-12-02T22:30:55.353963582Z",
        "modified_time": "2025-11-22T17:01:17.599778Z",
        "sha256": "e9aa8ab11a919cfd5b486468a3e13671431079afa0231e7af9132d258c6bc8d2",
        "source": "kam193",
        "versions": [
          "0.1.0"
        ]
      },
      {
        "id": "pypi/2025-11-uzip/mzip",
        "import_time": "2025-12-02T23:07:18.385297458Z",
        "modified_time": "2025-11-22T17:01:17.599778Z",
        "sha256": "cfa6ef3ee944ed5eef4429c7c9ec9488d9c2c70be6435ee1019851527272a9e4",
        "source": "kam193",
        "versions": [
          "0.1.0"
        ]
      },
      {
        "id": "pypi/2025-11-uzip/mzip",
        "import_time": "2025-12-11T17:11:15.735729432Z",
        "modified_time": "2025-11-22T17:01:17.599778Z",
        "sha256": "e3da86fc0b8ce87e4ac0b0014de36d0e1f2eac638e48e0db12058c3df75c3bad",
        "source": "kam193",
        "versions": [
          "0.1.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (cfa6ef3ee944ed5eef4429c7c9ec9488d9c2c70be6435ee1019851527272a9e4)\nDuring initialization of the archive-support class, the package starts code from another file and downloads multi-stage malware\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2025-11-uzip\n\n\nReasons (based on the campaign):\n\n\n - Downloads and executes a remote executable.\n\n\n - obfuscation\n\n\n - malware\n",
  "id": "MAL-2025-191799",
  "modified": "2025-12-11T17:12:53Z",
  "published": "2025-11-22T17:01:17Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.virustotal.com/gui/file-analysis/MGEwNWE0MzhlMTU3NTUxZTU1OGI4NTRkYTA2MWMxM2M6MTc2MzgzMDEyNA=="
    },
    {
      "type": "EVIDENCE",
      "url": "https://www.virustotal.com/gui/file/8808a0a09c0180afe742f0265f8b42bf671bc2083dcecd47c1515f52554200d9/detection"
    },
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/mzip"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in mzip (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.
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