Scan single files
Got a file you think might be infected? VirusTotal.com will tell you. Upload the file to the Web site or forward it as an attachment to scan@virustotal.com with subject line "SCAN." It will check the file against 32 antivirus-provider databases and give you a report.

Root out rootkits
Your system may be clean, but keep your eye out for info about new root¬kits; they are among the hardest mal¬ware to eliminate. If you're infected, try Sysinternals' free RootkitRevealer at ltechnetlsysinternalslutilitiesIRootkitRevealer.ms px. Protect your Mac Just as Firefox is a smaller target than Internet Explorer when it comes to viruses, Macs are smaller targets than PCs. But don't be complacent.