%%File: VIRS0478.TXT
%%Name/Aliases: Jack the Ripper, Jack Ripper
%%Platform: PC/MS-DOS
%%Type: Boot sector., 
%%Disk Location: Floppy disk boot sector., Hard disk partition table.
%%Features: Memory resident; TSR., Stealth
%%Damage: Corrupts a program or overlay files., Corrupts a data file., 
Corrupts floppy disk boot sector, Corrupts hard disk boot sector
%%Size: 
%%See Also: 
%%Notes:  A boot sector virus, infects memory, boot, MBR.  Don't scan 
for viruses with this virus in memory, it'll infect
It is two sectors long, and has some minor encryption in it.  The 
encryption is two strings and some executible code in the boot record .   
It wants to be stealthy, but it doesn't do anything significantly 
stealthy.
Approximately once a minute there is a check to see if you are writing 
to the disk, if you are, it does minor garbling of a disk sector