mal-2025-191723
Vulnerability from ossf_malicious_packages
Published
2025-04-04 12:54
Modified
2025-12-31 02:45
Summary
Malicious code in fastertelethon (PyPI)
Details

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

Source: kam193 (3ccfc281c2541df7e1354e6de8c64624fdc75dcc229d33962b171b0a95087edf)

Clone of Telethon package that exfiltrates credentials. See client/telegrambaseclient.py L608-626 (exfiltration function) and client/auth.py L163 (usage).


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

Campaign: 2025-04-fastgram

Reasons (based on the campaign):

  • clones-real-package

  • action-hidden-in-lib-usage

  • exfiltration-generic




{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "fastertelethon"
      },
      "versions": [
        "1.0.5",
        "1.0.0"
      ]
    }
  ],
  "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": "REPORTER"
    }
  ],
  "database_specific": {
    "iocs": {
      "domains": [
        "a1091388.xsph.ru",
        "a1124634.xsph.ru"
      ]
    },
    "malicious-packages-origins": [
      {
        "id": "pypi/2025-04-fastgram/fastertelethon",
        "import_time": "2025-12-02T22:30:55.18520753Z",
        "modified_time": "2025-04-04T12:54:50Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "ECOSYSTEM"
          }
        ],
        "sha256": "b24babfe443100b225270a7cc7bff07ed10e39121be0694653ec59a91ef88a3b",
        "source": "kam193"
      },
      {
        "id": "pypi/2025-04-fastgram/fastertelethon",
        "import_time": "2025-12-02T23:07:18.193739151Z",
        "modified_time": "2025-04-04T12:54:50Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "ECOSYSTEM"
          }
        ],
        "sha256": "3ccfc281c2541df7e1354e6de8c64624fdc75dcc229d33962b171b0a95087edf",
        "source": "kam193"
      },
      {
        "id": "pypi/2025-04-fastgram/fastertelethon",
        "import_time": "2025-12-10T21:38:57.478070426Z",
        "modified_time": "2025-04-04T12:54:50Z",
        "sha256": "ca8244ca6a84b757f58716bc8bb3a219e381ba136bb9c637d29fc549f928cef6",
        "source": "kam193",
        "versions": [
          "1.0.5",
          "1.0.0"
        ]
      },
      {
        "id": "pypi/2025-04-fastgram/fastertelethon",
        "import_time": "2025-12-30T22:39:04.081852736Z",
        "modified_time": "2025-04-04T12:54:50Z",
        "sha256": "8ab64081fd1ef60d3b7ca9424cbe8653e1b3716d9fc8bb721919501ccef08714",
        "source": "kam193",
        "versions": [
          "1.0.0",
          "1.0.5"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (3ccfc281c2541df7e1354e6de8c64624fdc75dcc229d33962b171b0a95087edf)\nClone of Telethon package that exfiltrates credentials. See client/telegrambaseclient.py L608-626 (exfiltration function) and client/auth.py L163 (usage).\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2025-04-fastgram\n\n\nReasons (based on the campaign):\n\n\n - clones-real-package\n\n\n - action-hidden-in-lib-usage\n\n\n - exfiltration-generic\n",
  "id": "MAL-2025-191723",
  "modified": "2025-12-31T02:45:15Z",
  "published": "2025-04-04T12:54:50Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/fastertelethon"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in fastertelethon (PyPI)"
}


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