Antivirus software are computer programs that attempt to identify, neutralize or eliminate malicious software. The term "antivirus" is used because the earliest examples were designed exclusively to combat computer viruses; however most modern antivirus software is now designed to combat a wide range of threats, including worms, phishing attacks, rootkits, trojan horses and other malware. Antivirus software typically uses two different approaches to accomplish this:
* examining (scanning) files to look for known viruses matching definitions in a virus dictionary, and
* identifying suspicious behavior from any computer program which might indicate infection.

The second approach is called heuristic analysis. Such analysis may include data captures, port monitoring and other methods.
Most commercial antivirus software uses both of these approaches, with an emphasis on the virus dictionary approach.

Webroot Spy Sweeper from Webroot Software, Inc.

Spy Sweeper Features:
Advanced Detection and Removal
Webroot Spy Sweeper's advanced detection and removal capabilities are effective at fully removing spyware that is notorious for being difficult to eliminate. Even the most malicious spyware programs are removed in a single sweep. You won't have to scan and restart your PC a number of times with Spy Sweeper - one sweep and your PC is clean.
Real-Time Threat Protection
Spy Sweeper Smart Shields block sophisticated spyware threats real-time, before they can infect your PC. This new version of Spy Sweeper advances the industry-standard in spyware blocking, stopping threats like Trojan-Downloader-LowZones and SpySheriff from ever installing in the first place. With Webroot Spy Sweeper on your side, you can easily keep your PC spyware-free.
Webroot Spy Sweeper installs quickly and easily. The intuitive interface lets you quickly set the right level of protection in just a few simple steps. Your security constantly runs in the background so you are free to work or play online the way you want to.
Minimal Impact on Computer Performance
Your security is optimized for speed and efficiency, but not at the expense of protection. Scanning can be initiated in the background or after hours to minimize any impact to desktop performance.
Always the most current protection
Security that is not updated is one of the biggest vulnerabilities home PC users face. Webroot’s VersionGuard™ ensures your protection is always current by automatically installing free updates to Webroot Spy Sweeper as soon as they are released.
FREE Customer Support
All Webroot products are backed by knowledgeable and friendly support experts who will help you through even the toughest spyware problems. Unlike many of our competitors, we offer this online and phone support absolutely FREE.
Satisfaction Guarantee
Webroot proudly stands behind its products, which is why all Webroot products are backed by a 30-day money-back guarantee - no questions asked.

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