mal-2025-48911
Vulnerability from ossf_malicious_packages
Published
2025-09-19 16:07
Modified
2025-12-31 02:45
Summary
Malicious code in yuzo (PyPI)
Details

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

Source: kam193 (deb22bdfdecb739735dd50a5e0e2fe8329ee260b7236db8112629d7516d081d4)

Package contains an infostealer and is clearly prepared for using it. Different versions present different variations, newer are based on CStealer. The exfiltration target is a hardcoded discord webhook


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

Campaign: 2025-09-suyo

Reasons (based on the campaign):

  • infostealer

  • infostealer:cstealer

  • exfiltration-browser-data


{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "yuzo",
        "purl": "pkg:pypi/yuzo"
      },
      "versions": [
        "1.0.0",
        "1.0.1",
        "1.0.2",
        "1.4.3"
      ]
    }
  ],
  "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": {
    "iocs": {
      "urls": [
        "https://discord.com/api/webhooks/1416787330873688224/4PB-5IWwMalA9DM5aNtX2O1V1FhofPrA2HkcfBqrcPnSy-ue-s5xLi9jxaPpMAjup-5I"
      ]
    },
    "malicious-packages-origins": [
      {
        "id": "RLMA-2025-05231",
        "import_time": "2025-10-27T18:08:51.200751338Z",
        "modified_time": "2025-10-23T19:17:26Z",
        "sha256": "9aca61cad4edb45dc2317dc31bd953db265a08c9ce0668699777692b62339b71",
        "source": "reversing-labs",
        "versions": [
          "1.0.0",
          "1.0.1",
          "1.0.2",
          "1.4.3"
        ]
      },
      {
        "id": "pypi/2025-09-suyo/yuzo",
        "import_time": "2025-12-02T22:30:55.787519218Z",
        "modified_time": "2025-09-19T16:07:50.38303Z",
        "sha256": "8fe0df38f75f51506b166f64d9a76f47859f894943fccfb55ca0677979ef07b8",
        "source": "kam193",
        "versions": [
          "1.4.3",
          "1.0.2",
          "1.0.1",
          "1.0.0"
        ]
      },
      {
        "id": "pypi/2025-09-suyo/yuzo",
        "import_time": "2025-12-02T23:07:18.830840585Z",
        "modified_time": "2025-09-19T16:07:50.38303Z",
        "sha256": "deb22bdfdecb739735dd50a5e0e2fe8329ee260b7236db8112629d7516d081d4",
        "source": "kam193",
        "versions": [
          "1.4.3",
          "1.0.2",
          "1.0.1",
          "1.0.0"
        ]
      },
      {
        "id": "pypi/2025-09-suyo/yuzo",
        "import_time": "2025-12-30T22:39:04.210237106Z",
        "modified_time": "2025-09-19T16:07:50.38303Z",
        "sha256": "2551c1897302570c72b4c07f118a6704e69f1dc6f449f2d976c2fcdb59aa397e",
        "source": "kam193",
        "versions": [
          "1.0.0",
          "1.0.1",
          "1.0.2",
          "1.4.3"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (deb22bdfdecb739735dd50a5e0e2fe8329ee260b7236db8112629d7516d081d4)\nPackage contains an infostealer and is clearly prepared for using it. Different versions present different variations, newer are based on CStealer. The exfiltration target is a hardcoded discord webhook\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2025-09-suyo\n\n\nReasons (based on the campaign):\n\n\n - infostealer\n\n\n - infostealer:cstealer\n\n\n - exfiltration-browser-data\n",
  "id": "MAL-2025-48911",
  "modified": "2025-12-31T02:45:16Z",
  "published": "2025-09-19T16:07:50Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/yuzo"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in yuzo (PyPI)"
}


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