Malware Removal Guide 2011: How to Get Rid of All The Latest Malware
Four steps that will keep your PC happy, healthy, and crap-free

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 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 your 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 nasties forevermore.

What’s that? The first step doesn't involve files to download or utilities to blast malware from your system? Exactly. The most important thing you have to realize in order to fight the great malware war is that you, and you alone, are the first line of defense. You have only yourself to blame if your computer is completely overridden with problem-causing, yet preventable, programs.

The astute among you will notice that this isn't a proper security scan: It's malware, and it just made life very difficult for this system's user.
Much of the more annoying malware that you can accidentally befriend requires your cooperation 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 harrowing tale).
In short, you have to let your guard down.

Ignore this warning image (or any variant) when you're browsing the Internet, and you could be in for a world of digital hurt.
So how do you protect yourself against your own habits? Keep in mind this rule of thumb: 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, Bing, and Yahoo are your friends. Use them to find more information about a given program before you agree to let it do anything on your system. Don’t surf the Internet blindly, assuming that everything on a website is safe for your system to digest.

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.

Google Chrome uses a sandbox to better protect you from web attacks. And based on the limited number of successful hacks over the years, it's worked!
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 when it comes to safety is Google’s Chrome browser for three reasons: First, it’s the only browser to use sandboxing as its primary defense mechanism. This method combines a JavaScript virtual machine with an OS-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 hardiest survivor of each year’s Pwn2Own hacking contest at the CanSecWest security conference: Talk about a real-world verification of its security capabilities, eh? Third, Google updates the Adobe Flash and Acrobat Reader modules itself. So if you’re running the latest version of Chrome, you’re running the latest, most secure versions of Flash and Acrobat Reader available (click the wrench icon and About Google Chrome to verify that you’re running the latest updates).
Firefox's NoScript add-on is an excellent tool for preventing page plugins from running on untrusted sites.
But we’re just getting started. JavaScript vulnerabilities—including blatant attacks that rely on a user’s cooperation to work—can just as easily affect your browser. If you’re rocking Firefox, grab an extension called NoScript, which will allow you to disable a page’s plugin elements (including JavaScript and Flash!) by default, 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 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 wielding to fight the malware fight include Web of Trust, KB SSL Enforcer, Adblock, and HTTPS Everywhere.