mal-2026-189
Vulnerability from ossf_malicious_packages
Published
2026-01-10 13:00
Modified
2026-01-10 13:00
Summary
Malicious code in oncecall (PyPI)
Details

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

Source: kam193 (30fc3993415d365e03d500864542d91d6c6d87af8b6125765af3ba4a5ee059f6)

Package silently downloads and executes an infostealer

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

Campaign: 2026-01-oncecall

Reasons (based on the campaign):

  • infostealer

  • Downloads and executes a remote executable.

  • obfuscation

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

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "oncecall"
      },
      "versions": [
        "0.1.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "REPORTER"
    }
  ],
  "database_specific": {
    "iocs": {
      "domains": [
        "python-modules.netlify.app",
        "still-paper-8832.samjango.workers.dev"
      ],
      "urls": [
        "https://python-modules.netlify.app/module1",
        "https://python-modules.netlify.app/module2"
      ]
    },
    "malicious-packages-origins": [
      {
        "id": "pypi/2026-01-oncecall/oncecall",
        "import_time": "2026-01-10T13:41:55.428238089Z",
        "modified_time": "2026-01-10T13:00:33.670258Z",
        "sha256": "30fc3993415d365e03d500864542d91d6c6d87af8b6125765af3ba4a5ee059f6",
        "source": "kam193",
        "versions": [
          "0.1.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (30fc3993415d365e03d500864542d91d6c6d87af8b6125765af3ba4a5ee059f6)\nPackage silently downloads and executes an infostealer\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-01-oncecall\n\n\nReasons (based on the campaign):\n\n\n - infostealer\n\n\n - Downloads and executes a remote executable.\n\n\n - obfuscation\n",
  "id": "MAL-2026-189",
  "modified": "2026-01-10T13:00:33Z",
  "published": "2026-01-10T13:00:33Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://www.virustotal.com/gui/file/146275dfb0c908097bc37eb8c38de6a7f720a0a25aa1423a182ac873601880c3/detection"
    },
    {
      "type": "EVIDENCE",
      "url": "https://tria.ge/260110-p4hwvagv5a/behavioral1"
    },
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/oncecall"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in oncecall (PyPI)"
}


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Sightings

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  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.