MAL-2026-17881
Vulnerability from ossf_malicious_packages
Published
2026-10-15 08:20
Modified
2026-10-16 04:04
Summary
Malicious code in py-sock2 (PyPI)
Details

Importing py-sock2's agentaix module downloads a mutable Python file from https://raw.githubusercontent.com/anonrider404/pypl/refs/heads/main/readme.txt to a temporary .py file and launches it without a visible console on Windows. Its agentaix console entry point imports the module. The remote file's Git history contains a Windows remote file management client that registers persistence through an HKCU Run entry, polls https://googleforum.pythonanywhere.com for commands, and supports file upload, download, deletion, and command execution. An earlier remote-file revision is byte-identical to the readme.txt payload reported in MAL-2026-17752 (agentaix); the 39,931-byte agentaix/gui.py is also byte-identical across that package and py-sock2. The remote file is mutable; its contents at the time of any particular victim import and actual execution on victim systems have not been established.


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

Source: kam193 (317abc5a9c1b535f3db6fd260a2f77eaaceb45745cd93deea7e9b3dd1d0cb933)

The package installs a persistent job that allows the attacker for exfiltrating files and executing remote code on the victim's machine.


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

Campaign: 2026-10-agentaix

Reasons (based on the campaign):

  • files-exfiltration

  • peristence-autorun

  • The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.

  • rat

  • persistence

  • Downloads and executes a remote malicious script.

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"
          }
        ]
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "py-sock2"
      },
      "versions": [
        "0.1.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://www.estsecurity.com/"
      ],
      "name": "ESTsecurity",
      "type": "FINDER"
    },
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "REPORTER"
    }
  ],
  "database_specific": {
    "iocs": {
      "domains": [
        "googleforum.pythonanywhere.com"
      ],
      "urls": [
        "https://raw.githubusercontent.com/anonrider404/pypl/9395c5802b11bc088925d7adf6e2f66b8b0709fd/readme.txt",
        "https://raw.githubusercontent.com/anonrider404/pypl/refs/heads/main/readme.txt",
        "https://github.com/anonrider404/pypl"
      ]
    },
    "malicious-packages-origins": [
      {
        "id": "pypi/2026-10-agentaix/py-sock2",
        "import_time": "2026-10-15T08:25:19.112139173Z",
        "modified_time": "2026-10-15T08:20:44.606178Z",
        "sha256": "ce0a067ced77a150f2c036ef46f3ee23605c56ffdfbe40e0d944c098a478e91f",
        "source": "kam193",
        "versions": [
          "0.1.0"
        ]
      },
      {
        "id": "pypi/2026-10-agentaix/py-sock2",
        "import_time": "2026-10-15T09:20:03.533913809Z",
        "modified_time": "2026-10-15T08:20:44.606178Z",
        "sha256": "317abc5a9c1b535f3db6fd260a2f77eaaceb45745cd93deea7e9b3dd1d0cb933",
        "source": "kam193",
        "versions": [
          "0.1.0"
        ]
      }
    ]
  },
  "details": "Importing py-sock2\u0027s `agentaix` module downloads a mutable Python file from `https://raw.githubusercontent.com/anonrider404/pypl/refs/heads/main/readme.txt` to a temporary `.py` file and launches it without a visible console on Windows. Its `agentaix` console entry point imports the module. The remote file\u0027s Git history contains a Windows remote file management client that registers persistence through an HKCU Run entry, polls `https://googleforum.pythonanywhere.com` for commands, and supports file upload, download, deletion, and command execution. An earlier remote-file revision is byte-identical to the `readme.txt` payload reported in MAL-2026-17752 (`agentaix`); the 39,931-byte `agentaix/gui.py` is also byte-identical across that package and py-sock2. The remote file is mutable; its contents at the time of any particular victim import and actual execution on victim systems have not been established.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (317abc5a9c1b535f3db6fd260a2f77eaaceb45745cd93deea7e9b3dd1d0cb933)\nThe package installs a persistent job that allows the attacker for exfiltrating files and executing remote code on the victim\u0027s machine.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-10-agentaix\n\n\nReasons (based on the campaign):\n\n\n - files-exfiltration\n\n\n - peristence-autorun\n\n\n - The package contains code to execute remote commands (probably limited to a specific set) on the victim\u0027s machine.\n\n\n - rat\n\n\n - persistence\n\n\n - Downloads and executes a remote malicious script.\n",
  "id": "MAL-2026-17881",
  "modified": "2026-10-16T04:04:55.805356266Z",
  "published": "2026-10-15T08:20:44Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/py-sock2"
    },
    {
      "type": "EVIDENCE",
      "url": "https://files.pythonhosted.org/packages/8c/9d/48e134eca0816e30e162c34f28cbd14e5e5edd1d5a684b461a559a5af5b7/py_sock2-0.1.0-py3-none-any.whl"
    },
    {
      "type": "WEB",
      "url": "https://github.com/anonrider404/pypl/blob/9395c5802b11bc088925d7adf6e2f66b8b0709fd/readme.txt"
    },
    {
      "type": "ADVISORY",
      "url": "https://osv.dev/vulnerability/MAL-2026-17752"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in py-sock2 (PyPI)"
}



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