| Description:
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Details
Brr
It is a very dangerous memory resident stealth boot virus. It writes itself to the MBR of the hard drive and boot sectors of floppy disks. The virus infects in correct way only 360K floppy disks and corrupts data on other types of floppy disks.
While loading from infected disk it copies itself to the Interrupt Vectors Table and hooks INT 9, 13h. Depending on the system timer the virus displays the message:
Brrall!
By hooking INT 9 the virus intercepts warm reboot (Alt-Ctrl-Del) and tries to infect floppy disk, if it is in drive. |