VDB - Symantec Virus Database File
This is a file used by Symantec AntiVirus which is a software package to protect company and personal computers against viruses, trojans and other forms of computer attack. It contains virus definition updates and other software upgrades. It is also used by a networked server which contains the antivirus software to distribute new definitions and updates to clients on a regular basis. Originally generated and distributed from Symantec, they are converted to VDB files before being sent to the client computers within corporate networks.