Check Files on Your Computer
Jotti Virusscan - analyzes files using over 20 antivirus programs
Metascan Online - analyzes files using over 30 antivirus programs
VirSCAN.org - analyzes files using over 30 antivirus programs
VirusTotal - analyzes files using over 40 antivirus programs
ThreatExpert - upload a single file to check against ThreatExpert database
Submit suspicious files for analysis and possible inclusion in the next antivirus update. Help save the world from virus and malware threats!
SUPERAntiSpyware - a small utility to submit files to SUPERAntiSpyware
Bleeping Computer’s File List - search this list for info on a file
Bleeping Computer’s Autostart File List - what is that file that autostarts?
These are a wealth of virus & malware information, definitions, details, latest threats, and much more
Panda - includes hoaxes, most active viruses, latest threats, and more