F-Secure Virus Descriptions : Leandro

NAME:	Leandro
ORIGIN:	Brazil
ALIAS:	Timewarp
TYPE:	Resident Boot sectors MBR

This is a reasonably simple diskette and Master Boot Record infector. It is only able to infect a hard disk when you try to boot the machine from an infected diskette. At this time Leandro infects the Main Boot Record, and after that it will go resident to high DOS memory during every boot-up from the hard disk.

Once Leandro gets resident to memory, it will infect practically all non-writeprotected diskettes used in the machine.

On October the 21st the virus activates, and displays the following message:

   Leandro and Kelly!  GV-MG-BRAZIL
   You have this virus since xx-xx-xx

The xx-xx-xx part contains the date when the virus first infected the machine.

The virus has no intentionally destructive payload, but it will sometimes corrupt floppies and hard drives when storing the original boot sector to another part of the disk.