mal-2026-17712
Vulnerability from ossf_malicious_packages
Published
2026-10-09 09:21
Modified
2026-10-11 14:20
Summary
Malicious code in ig-gox (PyPI)
Details

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

Source: amazon-inspector (9b31f8ba5b2167be45b02cd3bbf840873adf76369e3ac472f1cccfc4a0579fff)

The pypi package ig-gox ships a top-level ig_gox/init.py that, on import (the README's documented usage), base64-decodes a ~5 KB embedded blob, XOR-decrypts it with a hardcoded key, zlib-decompresses it, HMAC-verifies it, then exec/compiles the resulting Python under name='main'. The visible wrapper has no other functionality; all actual behavior of the package is contained in that concealed blob. Before decoding, the module performs anti-analysis checks: it calls sys.exit(0) if sys.gettrace() returns a tracer, if the process environment/cwd/argv contain substrings such as 'uncompyle', 'pycdc', 'decompyle', 'deobfuscate', 'hook', or 'frida', and it tampers with references to builtins.exec/eval/compile. The combination of a hidden exec-of-decoded-payload reached automatically on import and explicit evasions against debuggers and decompilers is deliberate concealment of code execution from the installer and from reviewers.

Source: kam193 (780638a0747103eb44a85312a2cfb552981e498655f638c5baf86eb4a5f74042)

Package hides obfuscated code aimed to avoid analysis and downloading the remote stage. The remote code is used to abuse Instagram service for mass fake account registration.


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

Campaign: 2026-10-ig-gox

Reasons (based on the campaign):

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

  • obfuscation

  • Downloads and executes a remote malicious script.

  • abusing-3rd-api

CWE
  • CWE-506 - The product contains code that appears to be malicious in nature.

{
  "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": "ig_gox/__init__.py",
              "sha256": "ba63e096bf53afc4bfe19863d767f2afda3f280b484614926ed54bfa4fc5bc5a",
              "tlsh": "26029d000d8b18ac772854ed1206d96ce642d6cff0572a58bd9e2492afe1439d0a6ebf"
            }
          ],
          "package_integrity": [
            {
              "filename": "ig_gox-1.0.0-py3-none-any.whl",
              "hashes": {
                "blake2b_256": "7c1c65aded3ec369d1885c71531f9036d854a4cc868bc2a349f1e0b5469cb8a8",
                "md5": "1db069868ae2beaed5135de236f62fcb",
                "sha256": "60c9d54df93424745b88a586d2ee7e0e6bb4eb537c247e4cc60cfd435d67053a"
              }
            },
            {
              "filename": "ig_gox-1.0.0.tar.gz",
              "hashes": {
                "blake2b_256": "34ab4a8fc7060909dc964e3c5858f7b4ec7faad0c9b0948fcc9ac4801cc15b87",
                "md5": "69929f48eb26864f5f9ef4a1cc8ebabb",
                "sha256": "abbc60f89180a06b6a1a25d8dbf53b41c74eded9a1a78cd1b7933c0e71044146"
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "ig-gox"
      },
      "versions": [
        "1.0.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    },
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "REPORTER"
    }
  ],
  "database_specific": {
    "iocs": {
      "domains": [
        "goxtools.shop"
      ]
    },
    "malicious-packages-origins": [
      {
        "id": "pypi/2026-10-ig-gox/ig-gox",
        "import_time": "2026-10-09T09:47:28.468553955Z",
        "modified_time": "2026-10-09T09:21:11.264724Z",
        "sha256": "780638a0747103eb44a85312a2cfb552981e498655f638c5baf86eb4a5f74042",
        "source": "kam193",
        "versions": [
          "1.0.0"
        ]
      },
      {
        "id": "IN-MAL-2026-021430",
        "import_time": "2026-10-11T14:18:04.946361312Z",
        "modified_time": "2026-10-11T13:58:22Z",
        "sha256": "9b31f8ba5b2167be45b02cd3bbf840873adf76369e3ac472f1cccfc4a0579fff",
        "source": "amazon-inspector",
        "versions": [
          "1.0.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (9b31f8ba5b2167be45b02cd3bbf840873adf76369e3ac472f1cccfc4a0579fff)\nThe pypi package ig-gox ships a top-level ig_gox/__init__.py that, on import (the README\u0027s documented usage), base64-decodes a ~5 KB embedded blob, XOR-decrypts it with a hardcoded key, zlib-decompresses it, HMAC-verifies it, then exec/compiles the resulting Python under __name__=\u0027__main__\u0027. The visible wrapper has no other functionality; all actual behavior of the package is contained in that concealed blob. Before decoding, the module performs anti-analysis checks: it calls sys.exit(0) if sys.gettrace() returns a tracer, if the process environment/cwd/argv contain substrings such as \u0027uncompyle\u0027, \u0027pycdc\u0027, \u0027decompyle\u0027, \u0027deobfuscate\u0027, \u0027hook\u0027, or \u0027frida\u0027, and it tampers with references to builtins.exec/eval/compile. The combination of a hidden exec-of-decoded-payload reached automatically on import and explicit evasions against debuggers and decompilers is deliberate concealment of code execution from the installer and from reviewers.\n\n## Source: kam193 (780638a0747103eb44a85312a2cfb552981e498655f638c5baf86eb4a5f74042)\nPackage hides obfuscated code aimed to avoid analysis and downloading the remote stage. The remote code is used to abuse Instagram service for mass fake account registration.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-10-ig-gox\n\n\nReasons (based on the campaign):\n\n\n - The package contains code to detect if it is running in a sandbox environment.\n\n\n - obfuscation\n\n\n - Downloads and executes a remote malicious script.\n\n\n - abusing-3rd-api\n",
  "id": "MAL-2026-17712",
  "modified": "2026-10-11T14:20:02.343128057Z",
  "published": "2026-10-09T09:21:11Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/ig-gox"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/ig-gox/1.0.0/"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in ig-gox (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

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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.
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  • 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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