Like many other viruses in 2007, WORM_VB.ZAA spreads itself by copying files to removable hard drives when connected to a computer that has been attacked by a virus. When the device is connected to a secure system, the virus automatically executes and copies files on the computer. Obviously, this virus also leaves an Autorun.Inf file to automatically run each time a new hard drive is connected to the computer.
Windows Media Player poisoned users to Quick Time Picture 1 Trend Micro says that WORM_VB.ZAA can easily be downloaded when visiting websites that have been poisoned. In addition, it can also be deployed by other harmful software installed on the system.
And now the important part: The virus is activated as soon as the user starts Windows Media Player and displays the message screen: " Please Install QuickTime Player to play this file! " ( Please install Quick Time Player to open this file! ).
" WORM_VB.ZAA modifies the registry to hide file extension names. It also hides system files by modifying other registry entries, " Trend Micro said.
Therefore, if you are advised to switch to another media program (such as Apple's Quick Time) and discard a good application used on the Windows operating system, you must immediately scan the entire system because the computer may be already infected WORM_VB.ZAA .