Virus Boot Sector

Boot Sector Viruses are spread is very common. The virus is in the double he will move or replace the original boot sector with the program boot virus. So when there is booting then the virus will be loaded into memory and then the virus will have the ability to control the standard hardware (example : monitor, printer, etc.) and from memory is also the virus will spread throughout the existing drive and connected to the compputer (example : floppy, another drive axcept c drive).

Virus Samples :

- Variant Virus wyx
ex: wyx.C (B) infect the boot record and floppy
length : 520 bytes
characteristics : memory resident and encrypted

- Variant V-Sign :
Infect : Master boot record
length of 520 bytes
characteristics : resident in memory (memory resident), encrypted, and polymorphic.

- 4th - Stoned.june / bloddy! :
Infect : Master boot record and floppy
length of 520 bytes
characteristics : resident in memory (memory resident), encrypted and display message "Bloody! June 4th 1989" after the computer is booting 128 times.