Using Virus Total,
you can scan your file online for Viruses, worms, trojans, and all
kinds of malware with World’s most Leading antivirus engine at once by
a single click. VirusTotal is a service developed by
Hispasec Sistemas, an independent IT Security laboratory, that uses
several command line versions of antivirus engines, updated regularly
with official signature files published by their respective developers.

This is a list of the companies that participate in VirusTotal with their antivirus engines.

• AhnLab (V3)
  
• Antiy Labs (Antiy-AVL)
  
• Aladdin (eSafe)
  
• ALWIL (Avast! Antivirus)
  
• Authentium (Command Antivirus)
  
• AVG Technologies (AVG)
  
• Avira (AntiVir)
  
• Cat Computer Services (Quick Heal)
  
• ClamAV (ClamAV)
  
• Comodo (Comodo)
  
• CA Inc. (Vet)
  
• Doctor Web, Ltd. (DrWeb)
  
• Emsi Software GmbH (a-squared)
  
• Eset Software (ESET NOD32)
  
• Fortinet (Fortinet)
  
• FRISK Software (F-Prot)
  
• F-Secure (F-Secure)
  
• G DATA Software (GData)
  
• Hacksoft (The Hacker)
  
• Hauri (ViRobot)
  
• Ikarus Software (Ikarus)
  
• INCA Internet (nProtect)
  
• K7 Computing (K7AntiVirus)
  
• Kaspersky Lab (AVP)
  
• McAfee (VirusScan)
  
• Microsoft (Malware Protection)
  
• Norman (Norman Antivirus)
  
• Panda Security (Panda Platinum)
  
• PC Tools (PCTools)
  
• Prevx (Prevx1)
  
• Rising Antivirus (Rising)
  
• Secure Computing (SecureWeb)
  
• BitDefender GmbH (BitDefender)
  
• Sophos (SAV)
  
• Sunbelt Software (Antivirus)
  
• Symantec (Norton Antivirus)
  
• VirusBlokAda (VBA32)
  
• Trend Micro (TrendMicro)
  
• VirusBuster (VirusBuster)
  

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Great list, friend!