mal-2026-870
Vulnerability from ossf_malicious_packages
Published
2026-02-12 12:10
Modified
2026-02-12 12:10
Summary
Malicious code in b10connoisseur (PyPI)
Details

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

Source: kam193 (3b004210d186f2b625699f4d863f3ba95407f836eadfee0168be63f85124b5b7)

During installation, package attempts to enumerate the environment and exfiltrates potentially sensitive data to a hardcoded location.

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

Campaign: 2026-02-b10connoisseur

Reasons (based on the campaign):

  • exfiltration-generic

  • exfiltration-env-variables

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

Credits
Kamil Mańkowski (kam193) github.com/kam193 bad-packages.kam193.eu/
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "b10connoisseur"
      },
      "versions": [
        "0.1.0",
        "0.2.0",
        "0.3.0",
        "0.4.0",
        "0.5.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "ANALYST"
    }
  ],
  "database_specific": {
    "iocs": {
      "ips": [
        "54.242.228.151"
      ],
      "urls": [
        "http://54.242.228.151:8090/debug-21f53"
      ]
    },
    "malicious-packages-origins": [
      {
        "id": "pypi/2026-02-b10connoisseur/b10connoisseur",
        "import_time": "2026-02-12T12:50:22.574962417Z",
        "modified_time": "2026-02-12T12:10:26.705293Z",
        "sha256": "3b004210d186f2b625699f4d863f3ba95407f836eadfee0168be63f85124b5b7",
        "source": "kam193",
        "versions": [
          "0.1.0",
          "0.2.0",
          "0.3.0",
          "0.4.0",
          "0.5.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (3b004210d186f2b625699f4d863f3ba95407f836eadfee0168be63f85124b5b7)\nDuring installation, package attempts to enumerate the environment and exfiltrates potentially sensitive data to a hardcoded location.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-02-b10connoisseur\n\n\nReasons (based on the campaign):\n\n\n - exfiltration-generic\n\n\n - exfiltration-env-variables\n\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n",
  "id": "MAL-2026-870",
  "modified": "2026-02-12T12:10:26Z",
  "published": "2026-02-12T12:10:26Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/b10connoisseur"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in b10connoisseur (PyPI)"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.