Windows Analysis Report
http://www.grhga.icu/

{
    "typosquatting": false,
    "unusual_query_string": false,
    "suspicious_tld": true,
    "ip_in_url": false,
    "long_subdomain": false,
    "malicious_keywords": false,
    "encoded_characters": false,
    "redirection": false,
    "contains_email_address": false,
    "known_domain": false,
    "brand_spoofing_attempt": false,
    "third_party_hosting": true
}

URL: http://www.grhga.icu

{
    "risk_score": 2,
    "reasoning": "The provided JavaScript snippet appears to be a compatibility test for various web platform features. It checks for the availability of features like Promises, WebSockets, Web Crypto API, Object.fromEntries, ResizeObserver, CSS Supports, and various Intl APIs. The script is designed to display a warning message and prevent the page from loading if the required features are not available. This behavior is common for web applications that require certain capabilities to function properly. The script does not exhibit any high-risk indicators, such as dynamic code execution, data exfiltration, or suspicious redirects. It is primarily focused on feature detection and graceful degradation, which is a common and legitimate practice in web development."
}

function compatTest() {
  var hasPromise = typeof Promise !== 'undefined';
  var hasWebSockets = typeof WebSocket !== 'undefined';
  var hasWebCrypto = window.crypto && typeof window.crypto.subtle !== 'undefined';
  var hasObjectFromEntries = typeof Object.fromEntries !== 'undefined';
  var hasResizeObserver = typeof window.ResizeObserver !== 'undefined';
  var hasCssSupports = window.CSS && typeof window.CSS.supports === 'function';
  var hasIntl = typeof window.Intl !== 'undefined';
  var hasDisplayNames = hasIntl && typeof Intl.DisplayNames !== 'undefined';
  var hasPluralRules = hasIntl && typeof Intl.PluralRules !== 'undefined';
  var hasNumberFormat = hasIntl && typeof Intl.NumberFormat !== 'undefined';

  var isCompatible = hasPromise && hasWebSockets && hasWebCrypto && hasObjectFromEntries && hasResizeObserver
    && hasCssSupports && hasDisplayNames && hasPluralRules && hasNumberFormat;

  if (isCompatible || (window.localStorage && window.localStorage.getItem('tt-ignore-compat'))) {
    window.isCompatTestPassed = true;
    return;
  }

  if (window.console && console.warn) {
    console.warn('Compatibility test report:');
    console.warn('Promise', hasPromise);
    console.warn('WebSocket', hasWebSockets);
    console.warn('WebCrypto', hasWebCrypto);
    console.warn('Object.fromEntries', hasObjectFromEntries);
    console.warn('ResizeObserver', hasResizeObserver);
    console.warn('CSS.supports', hasCssSupports);
    console.warn('Intl.DisplayNames', hasDisplayNames);
    console.warn('Intl.PluralRules', hasPluralRules);
    console.warn('Intl.NumberFormat', hasNumberFormat);
  }

  // Hardcoded page because server forbids iframe embedding
  document.title = 'Unsupported Browser';
  document.body.setAttribute('style', 'height: 100%; margin: 0; font-family: Arial, Helvetica, sans-serif;');
  document.body.innerHTML = '<table style="width:100%;height:100%;border-collapse:collapse"><tr><td style="vertical-align:middle;text-align:center"><div style="display:inline-block"><img src=./unsupported.png><h3>Your browser is not supported</h3><p>Please, update it or use our <a href="http://telegram.org/dl" target="_blank">native clients</a>.</p><a id="ignore" href="#">I\'m Feeling Lucky</a></div></table>';

  if (!window.ignore) return;
  if (!window.ignore.addEventListener) {
    window.ignore.style.display = 'none';
    return;
  }

  window.ignore.addEventListener('click', function() {
    window.localStorage.setItem('tt-ignore-compat', '1');
    window.location.reload();
  });
}

compatTest();