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Understand how JavaScript malware works it’s time you found out how cyber criminals abuse this programming language in their attacks. The key takeaway is that JavaScript allows website creators to run any code they want when a user visits their website. Naturally, website developers can be either good or bad. What’s more, cyber criminals frequently manipulate the code on countless websites to make it perform malicious functions. However, JavaScript is not an insecure programming language. It’s just that code bugs or improper implementations can create backdoors which attackers can exploit. So here’s how it all happens. When you’re browsing a website, a series of JavaScript (.js) files are downloaded on your PC automatically. These files are executed through your browser, so you can: see the content of the website you’re on perform various actions (example: fill out a form or download a file from a website) see the online ads (banners) on that website, etc. Because online browsing is one of
