MAL-2026-4753
Vulnerability from ossf_malicious_packages
Published
2026-05-22 08:57
Modified
2026-05-22 08:57
Summary
Malicious code in gt-tester-exp-profiler-exp-00000017 (PyPI)
Details

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

Source: amazon-inspector (f1490f970bd52c80c89f33029f9e875f1fb595014621d50e0ce87a167d1cd348)

setup.py installs a site-wide.pth file (gt_tester_exp_profiler_exp_00000017_probe.pth) into site-packages that imports the package's probe module and calls run_probe() at every Python interpreter startup. probe.py performs a plaintext HTTP GET to the bare IP 104.236.116.157 with a per-call random hex tag, fingerprinting the installer's machine to a third party on every Python invocation — not just when the package is explicitly imported. The User-Agent string claims an 'Academic research study' but no consent is obtained at install or runtime. Package metadata is a generic placeholder with no author, homepage, or publisher identification, and the destination is a bare IP not associated with any declared publisher. The.pth mechanism converts what would be an import-time call into persistent host beaconing across every CI job, virtualenv activation, and script execution on the machine.

CWE
  • CWE-506 - The product contains code that appears to be malicious in nature.
Credits
Amazon Inspector actran@amazon.com

{
  "affected": [
    {
      "database_specific": {
        "cwes": [
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "gt_tester_exp_profiler_exp_00000017/probe.py",
              "sha256": "aaa072a2ff382a2b6b2f6f78238cca5adf7df834728f9f1ca8e62d8696c1cfb0",
              "tlsh": "8301d0d7e8132063d347c8bea781d9117bab79d7a9ca5570b8ce16340fc1934c071453"
            },
            {
              "path": "setup.py",
              "sha256": "e841740885ed0b6a30409e2b101dc9a1a1fcf5d0b9de8b2109c69ef43a306022",
              "tlsh": "c0f02b0ec15ba0a5fe66db345da368115be5f9430ee8c650b0ff091057ab1a24446887"
            }
          ],
          "package_integrity": [
            {
              "filename": "gt_tester_exp_profiler_exp_00000017-1.0.0-py3-none-any.whl",
              "hashes": {
                "blake2b_256": "1362b73d90d05567c378d61b86b707fda87959ade67b46fd5be864d5e7855e1b",
                "md5": "69ae2b5c388858dc053e0b45cb95d8f3",
                "sha256": "79648ff4e0f6c6bb288a0cc583365f057a15891b9753024711a5ad80ad914048"
              }
            },
            {
              "filename": "gt_tester_exp_profiler_exp_00000017-1.0.0.tar.gz",
              "hashes": {
                "blake2b_256": "4ea2ddbccd866092c5f67cf7f0e28a4f85ce3ce7a63f055234434405d76874ac",
                "md5": "fe8f210ac4634809c9fa20957a597c5f",
                "sha256": "f0599e072de08b1f730a2e4c2b6dcd244db1faa218c5122639ce082f2dd0b4d8"
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "gt-tester-exp-profiler-exp-00000017"
      },
      "versions": [
        "1.0.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "actran@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-004175",
        "import_time": "2026-05-26T05:52:05.002493938Z",
        "modified_time": "2026-05-22T08:57:49Z",
        "sha256": "f1490f970bd52c80c89f33029f9e875f1fb595014621d50e0ce87a167d1cd348",
        "source": "amazon-inspector",
        "versions": [
          "1.0.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (f1490f970bd52c80c89f33029f9e875f1fb595014621d50e0ce87a167d1cd348)\nsetup.py installs a site-wide.pth file (gt_tester_exp_profiler_exp_00000017_probe.pth) into site-packages that imports the package\u0027s probe module and calls run_probe() at every Python interpreter startup. probe.py performs a plaintext HTTP GET to the bare IP 104.236.116.157 with a per-call random hex tag, fingerprinting the installer\u0027s machine to a third party on every Python invocation \u2014 not just when the package is explicitly imported. The User-Agent string claims an \u0027Academic research study\u0027 but no consent is obtained at install or runtime. Package metadata is a generic placeholder with no author, homepage, or publisher identification, and the destination is a bare IP not associated with any declared publisher. The.pth mechanism converts what would be an import-time call into persistent host beaconing across every CI job, virtualenv activation, and script execution on the machine.\n",
  "id": "MAL-2026-4753",
  "modified": "2026-05-22T08:57:49Z",
  "published": "2026-05-22T08:57:49Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/gt-tester-exp-profiler-exp-00000017/1.0.0/"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in gt-tester-exp-profiler-exp-00000017 (PyPI)"
}


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