
Joshi is a common virus all over the world. It will infect boot 
sectors of diskettes and the hard disk master boot sector.

Technically it is relatively advanced and is capable of hiding
itself when being active in memory. It can also survive a Ctrl-Alt-Del
reboot.

On January 5th of any year, the Joshi virus activates.  At that
time, the virus will hang the system while displaying the message
'Type "Happy Birthday Joshi" !'. The system won't start until the
user has typed in birthday wishes to Joshi.
