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Anti-browser virtual machine detection

Anti-browser virtual machine detection. Some website security systems detect whether the system is a virtual machine, and risk control will be triggered in virtual environments. Developer mode needs to be enabled.

当前为 2025-07-02 提交的版本，查看 最新版本。

// ==UserScript==
// @name         Anti-browser virtual machine detection
// @namespace    http://tampermonkey.net/
// @version      2.1
// @author       louk78
// @license      MIT
// @description  Anti-browser virtual machine detection. Some website security systems detect whether the system is a virtual machine, and risk control will be triggered in virtual environments. Developer mode needs to be enabled.
// @match        *://*/*
// @grant        none
// @run-at       document-start
// ==/UserScript==

(function() {
    'use strict';

    //Here you can customize the graphics card manufacturer and model
    const FAKE_RENDERER = "ANGLE (NVIDIA, NVIDIA GeForce RTX 3070 (0x00002705) Direct3D11 vs_5_0 ps_5_0, D3D11)";
    const FAKE_VENDOR = "Google Inc. (NVIDIA)";


    const originalGetContext = HTMLCanvasElement.prototype.getContext;
    const originalGetParameter = WebGLRenderingContext.prototype.getParameter;
    const originalGetExtension = WebGLRenderingContext.prototype.getExtension;


    HTMLCanvasElement.prototype.getContext = function(type, attributes) {
        if (type === 'webgl' || type === 'webgl2') {
            const gl = originalGetContext.apply(this, arguments);
            if (!gl) return null;


            gl.getExtension = function(name) {
                const extension = originalGetExtension.apply(this, arguments);
                if (name === 'WEBGL_debug_renderer_info') {
                    return {
                        UNMASKED_RENDERER_WEBGL: 0x9246,
                        UNMASKED_VENDOR_WEBGL: 0x9245,
                        __proto__: extension
                    };
                }
                return extension;
            };

            gl.getParameter = function(pname) {
                if (pname === 0x9246) return FAKE_RENDERER;
                if (pname === 0x9245) return FAKE_VENDOR;
                return originalGetParameter.apply(this, arguments);
            };

            return gl;
        }
        return originalGetContext.apply(this, arguments);
    };

})();