Scrub Your PC Clean: Remove Malware in Four Easy Steps
Malware sucks. In the best-case scenario, it craps up your system with unwanted files and occasionally makes itself known in the form of a persistent pop-up window or annoying browser-based toolbar. In the worst-case scenario, malware completely takes over your desktop or laptop and ruins your life.
Your system slows it to a crawl. You can’t even boot into Windows in the time it takes you to walk to the kitchen and back. Your data gets sent off to a faraway Internet land or, worse, your actual keystrokes are recorded for some unsavory individual to see. Malware locks down you browser, making you unable to actually do any browsing without being carted off to some bogus domain. You can barely run a program in Windows without getting bombarded by fake advertisements, programs, and dancing people on your desktop.
We can’t make this stuff up.
So what’s a computer enthusiast to do? Step zero: Read this guide, because we’re going to walk you through all the key details you need to know to both rid your computer of this junk and keep it free of downloaded problems forevermore.
[Step One] The Pre-step
What’s that? No files to download or software to rip malware from your system? Exactly. The most important thing to realize in order to fight in malware’s great war is that you, and you alone, are the first line of defense. You only have yourself to blame if your computer is completely overridden with preventable, problem-causing programs.

Much of the more annoying malware that you can accidentally befriend requires your input in order to get on your system in the first place. You have to download and run an unknown file or agree to have a toolbar placed on your system as part of a software installation routine. You have to accept certain kinds of Javascript or be fooled by scam websites that claim to be running a virus scan on your system (to name one such tall tale).
In short, you have to let your guard down.
So how do you protect yourself against your own habits? Use three simple rules: If it’s too good to be true, if it looks strange, or if it’s completely unknown to you, don’t run it. Don’t install it. Don’t accept it, don’t hit “yes” to it, and don’t let it get anywhere near your system. Google, or Bing, or Yahoo is your friend: Find more information about a given situation or software before you agree to let it do anything on your system. Don’t surf the Internet blindly and assume that everything on a Web site is a safe for your system to digest.

[Step Two] Browser Blockers
We mentioned that a bunch of malware can come through your browser–‘tis a shame, we know. Vulnerabilities in browsers and plugins (and user error) can bring your system to its digital knees faster than you can spell the word “crap” in “crapware.” So let’s start with the simplest step: Stop using an outdated, insecure browser. Make sure you’re at least sporting the latest version of one of the “Big Three:” Internet Explorer, Firefox, or Chrome.
But which? Various research reports have dubbed each of these three browsers as the “best-in-class” against malware and other social-driven attacks. Our personal preference turns to Google’s Chrome browser for two reasons: One, it’s the only browser to use sandboxes as its primary defense mechanism, which combines a Javascript virtual machine and an operating-system-level sandbox to prevent successful attacks against the browser’s rendering engine from affecting a user’s file system. Second, Chrome has been, hands-down, the healthiest survivor of each year’s Pwn2Own hacking contest at the CanSecWest security conference: Talk about a real-world verification of its security capabilities, eh?

But we’re just getting started. Javascript vulnerabilities—including blatant attacks that rely on a user’s cooperativeness to work–can just as easily affect your browser as well. If you’re rocking Firefox, grab an extension called NoScript, which will allow you to turn a page’s plugins elements off by default (including Javascript and Flash!) unless you trust the site enough to give ‘em a go. Chrome doesn’t have an add-on for the same feature, but you can disable Javascript by default in the browser’s “Under the Hood” settings section. And if you want to specifically allow a site’s Javascript to function, just click on the associated “X” icon in the browser’s address bar to set up site-specific trust. Or, if you don’t mind using a slight variant, you can do your best to mimic “NoScript”-like control using the “NotScripts” add-on.


Other extensions and add-ons worth equipping to fight the malware fight include: Web of Trust, KB SSL Enforcer, Adblock, and HTTPS Everywhere.