Defo - Virus Details Defo Aliases: PeterII.Runtime Size: 3072 KB Frequency: 3 Characteristics: Infects MBR Infects diskette boot record Memory resident Full stealth Displays message Information: Message Displayed: If the virus code becomes corrupted it displays a system error message. Notes: If the Print Screen key is pressed, the virus disables its stealth and infection routines for about 25 minutes. Back to the Virus List page Virus Databases Virus Links Virus Research Security About Us Products Updates Support Resellers Purchase Contact Us  Home Command Software · Inc 1061 East Indiantown Road · Suite 500 Jupiter · FL   33477 USA