In Pictures: Warning Signs of an Internet Attack

You now know about avoiding these dirty tricks, but tomorrow will no doubt bring a new batch. If you suspect a download or attachment might actually be the latest attack, upload it to Virustotal.com, an excellent free service that scans the upload using more than 30 different antivirus scanning engines. Click 'Browse,' select the file, and click 'Send.' The resulting report won't be a 100 percent guarantee of safety even if the file's reported clean, but having no less than 30 second opinions can sure help.