mal-2026-2255
Vulnerability from ossf_malicious_packages
Published
2026-03-27 07:47
Modified
2026-03-27 14:27
Summary
Malicious code in thisismytest123 (PyPI)
Details

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

Source: kam193 (7640ee5ded7bcafbd9863565d68a7768bdc9bd2abca56a69d73576e7e9b2c0df)

During installation, if run under a specific username, the package downloads and installs two executables identified as backdoors trojans.


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

Campaign: 2026-03-thisismytest123

Reasons (based on the campaign):

  • Downloads and executes a remote executable.

  • backdoor

  • malware

Source: ossf-package-analysis (7587966a3d79cfe783b06cfea4893cd3d3c445d8c1783c81d4b1ff797e591141)

The OpenSSF Package Analysis project identified 'thisismytest123' @ 1.0.0 (pypi) as malicious.

It is considered malicious because:

  • The package executes one or more commands associated with malicious behavior.

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "thisismytest123"
      },
      "versions": [
        "1.0.0",
        "2.0.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "REPORTER"
    },
    {
      "contact": [
        "https://github.com/ossf/package-analysis",
        "https://openssf.slack.com/channels/package_analysis"
      ],
      "name": "OpenSSF: Package Analysis",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "iocs": {
      "urls": [
        "http://8.217.174.149:8888/supershell/compile/download/java",
        "https://shim.oss-cn-hongkong.aliyuncs.com/shim",
        "https://shim.oss-cn-hongkong.aliyuncs.com/shim.conf"
      ]
    },
    "malicious-packages-origins": [
      {
        "import_time": "2026-03-27T09:22:29.114673103Z",
        "modified_time": "2026-03-27T07:47:07Z",
        "sha256": "7587966a3d79cfe783b06cfea4893cd3d3c445d8c1783c81d4b1ff797e591141",
        "source": "ossf-package-analysis",
        "versions": [
          "1.0.0"
        ]
      },
      {
        "import_time": "2026-03-27T09:22:29.24318088Z",
        "modified_time": "2026-03-27T08:14:18Z",
        "sha256": "c1564ec3a6b1a2fee0aacfbeafde84cba8e249a9294b771f43610ff371942a6d",
        "source": "ossf-package-analysis",
        "versions": [
          "2.0.0"
        ]
      },
      {
        "id": "pypi/2026-03-thisismytest123/thisismytest123",
        "import_time": "2026-03-27T14:25:43.463936915Z",
        "modified_time": "2026-03-27T13:55:03.756631Z",
        "sha256": "7640ee5ded7bcafbd9863565d68a7768bdc9bd2abca56a69d73576e7e9b2c0df",
        "source": "kam193",
        "versions": [
          "1.0.0",
          "2.0.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (7640ee5ded7bcafbd9863565d68a7768bdc9bd2abca56a69d73576e7e9b2c0df)\nDuring installation, if run under a specific username, the package downloads and installs two executables identified as backdoors trojans.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-03-thisismytest123\n\n\nReasons (based on the campaign):\n\n\n - Downloads and executes a remote executable.\n\n\n - backdoor\n\n\n - malware\n\n## Source: ossf-package-analysis (7587966a3d79cfe783b06cfea4893cd3d3c445d8c1783c81d4b1ff797e591141)\nThe OpenSSF Package Analysis project identified \u0027thisismytest123\u0027 @ 1.0.0 (pypi) as malicious.\n\nIt is considered malicious because:\n\n- The package executes one or more commands associated with malicious behavior.\n",
  "id": "MAL-2026-2255",
  "modified": "2026-03-27T14:27:31Z",
  "published": "2026-03-27T07:47:07Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://www.virustotal.com/gui/file/d06d2288d3aa76675947137279e6db4d5a31d3ab3a46720d15df4c4d2d52b9d3/detection"
    },
    {
      "type": "EVIDENCE",
      "url": "https://www.virustotal.com/gui/file/28d6c2c26ed631981fc9575a452b45b8b741d172769d5d8366a4269536236ab3/detection"
    },
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/thisismytest123"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in thisismytest123 (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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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