Chance is a stealth boot virus. When an attempt is made to load the system from an infected diskette the virus decreases the amount of DOS usable memory by 2 KB and redirects its body to the interrupt INT 13h. Upon its installation into memory the virus attacks MBR. It attacks all diskettes that are not write-protected. When the system date is December 8th, the virus will display the following text:

«All we are saying is give peace a chance» (J. Lennon)