mal-2026-4829
Vulnerability from ossf_malicious_packages
Published
2026-05-27 01:54
Modified
2026-05-27 01:54
Summary
Malicious code in quatres (PyPI)
Details

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

Source: kam193 (0d720315dd49970cfc00c39f4e377485b2746a4fc24f42dec7e79d0749ab9a7d)

During import, the hidden code downloads and executes the second-stage code. After performing anti-analysis checks, it downloads a malicious executable and ensures its persistence.


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

Campaign: 2026-05-helu

Reasons (based on the campaign):

  • obfuscation

  • Downloads and executes a remote malicious script.

  • The package contains code to detect if it is running in a sandbox environment.

  • Downloads and executes a remote executable.

  • malware

  • persistence

  • covering-tracks

Credits

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "quatres"
      },
      "versions": [
        "3.0.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "ANALYST"
    }
  ],
  "database_specific": {
    "iocs": {
      "urls": [
        "https://raw.githubusercontent.com/jjinkjimmy-design/i-belive-i-can-fly/refs/heads/main/stg2.py",
        "https://learn-python-beginner-hub.netlify.app/Runtime-Broker.exe",
        "https://tranquil-lollipop-6e2f41.netlify.app/cbi.json"
      ]
    },
    "malicious-packages-origins": [
      {
        "id": "pypi/2026-05-helu/quatres",
        "import_time": "2026-05-27T03:15:35.265980733Z",
        "modified_time": "2026-05-27T01:54:23.158038Z",
        "sha256": "0d720315dd49970cfc00c39f4e377485b2746a4fc24f42dec7e79d0749ab9a7d",
        "source": "kam193",
        "versions": [
          "3.0.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (0d720315dd49970cfc00c39f4e377485b2746a4fc24f42dec7e79d0749ab9a7d)\nDuring import, the hidden code downloads and executes the second-stage code. After performing anti-analysis checks, it downloads a malicious executable and ensures its persistence.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-05-helu\n\n\nReasons (based on the campaign):\n\n\n - obfuscation\n\n\n - Downloads and executes a remote malicious script.\n\n\n - The package contains code to detect if it is running in a sandbox environment.\n\n\n - Downloads and executes a remote executable.\n\n\n - malware\n\n\n - persistence\n\n\n - covering-tracks\n",
  "id": "MAL-2026-4829",
  "modified": "2026-05-27T01:54:23Z",
  "published": "2026-05-27T01:54:23Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://www.virustotal.com/gui/file/a14d17cd9f2e983795ed63f73373b94cb9eb047044a7b2f5269ac10c7db0499a/detection"
    },
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/quatres"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in quatres (PyPI)"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • 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.


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Detection rules are retrieved from Rulezet.

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