The Secunia Personal Software Inspector, available as a free download, scans your installed software to let you know which out-of-date programs might be making your PC unsafe. But it doesn't stop there--for each old program it finds, it offers quick and easy action buttons such as one labeled Download Solution, which retrieves the latest software patch without you even having to open a browser.
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If using VirusTotal starts to become a habit (not a bad idea) and you want to make sending files for scanning to VirusTotal really easy, download the free VirusTotal Uploader. Once you've installed the utility, just right-click a file, and you'll see an option (under Send To) to upload it to the VirusTotal site.
One promising approach uses behavioral analysis to identify malicious software based solely on how it acts on your PC. But your antivirus software by itself may not be enough. ThreatFire, a popular free download from PC Tools, adds such a layer of behavior-based protection. In recent tests, it correctly identified 90 percent of malware based on its behavior alone.
PC World's ThreatFire review provides a thorough analysis of the program and a quick download link (as well as a warning about installing too many security programs on one PC). And for more on behavioral analysis and proactive virus detection, see "When a Signature Isn't Enough."
Many antivirus makers offer free and easy online scans through your Web browser. The scan will take time, as the scanning service will need to download large Java or ActiveX components before it can get started, but they're easy to kick off. You can run them in addition to your already-installed antivirus application for a second (or third, or fourth) opinion. Here's the lowdown on your options.
Twitter continues to be used for distributing malicious links to distribute malware or perform phishing attacks. Some of these are promoted through hashtag hijacking, impersonating a legitimate company or brand, free offers and many times through direct messages. Shortened URLs obfuscate the malicious link making it difficult for the individual to check the destination site. 2ff7e9595c
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