Inject.JS file when inspecting headers in chrome network

Question

I checked my chrome network tab, when inspecting, and found this script, that looked a bit fishy. It's called inject.js and has this code. I don't have any extensions, called something like this, so I'm worried it might be a malware script?

(() => {
try {
const detectJs = (chain) => {
  const properties = chain.split('.');

  let value = properties.length ? window : null;

  for (let i = 0; i < properties.length; i++) {
    const property = properties[i];

    if (value && value.hasOwnProperty(property)) {
      value = value[property];
    } else {
      value = null;

      break;
    }
  }

  return typeof value === 'string' || typeof value === 'number' ? value : !!value;
};

const onMessage = (event) => {
  if (event.data.id !== 'patterns') {
    return;
  }

  removeEventListener('message', onMessage);

  const patterns = event.data.patterns || {};

  const js = {};

  for (const appName in patterns) {
    if (patterns.hasOwnProperty(appName)) {
      js[appName] = {};

      for (const chain in patterns[appName]) {
        if (patterns[appName].hasOwnProperty(chain)) {
          js[appName][chain] = {};

          for (const index in patterns[appName][chain]) {
            const value = detectJs(chain);

            if (value && patterns[appName][chain].hasOwnProperty(index)) {
              js[appName][chain][index] = value;
            }
          }
        }
      }
    }
  }

  postMessage({ id: 'js', js }, '*');
 };

addEventListener('message', onMessage);
  } catch (e) {
 // Fail quietly
  }
   })();

Is this some sort of malware?

Answer 1

通过使用Chrome中的开发人员工具，单击“源”选项卡并在“页面”子选项卡上搜索inject.js，我看到了相同的代码，并确定它是Wappalyzer的一部分。