There's way to delete the virus since the virus is at the
RESTORE folder.
I think u r using WINDOWS XP OR WINDOWS ME.
To Delete the virus u need to turn off
SYSTEM RESTORE which will delete all the system restore point in the restore folder.
Turning OFF SYSTEM RESTORE :
RIGHT CLICK MY COMPUTER ICON

SELECT PROPERTIES

CLICK ON THE SYSTEM RESTORE TAB(WINDOWS XP)

THEN CLICK ON THE "
TURN OFF THE SYSTEM RESTORE" .
IT SHOULD BE ABLE TO DELETE AWAY THE VIRUS THEN SCAN(ANTI-VIRUS SOFTWARE) AGAIN TO CHECK IF THE VIRUS IS DELETED.
IF STILL CANNOT THEN U HAVE TO BOOT INTO SAFE MODE TO TRY TO DELETE THE VIRUS.
INSTRUCTION ON BOOTING IN TO THE SAFE MODE (WINDOWS XP)RESTART YOUR COMPUTER, BEFORE THE WINDOWS LOADING SCREEN QUICKLY PRESS THE F8 BUTTON ON THE KEYBOARD N SELECT SAFE MODE WITH COMMAND PROMPT.
TRY USING OTHER ANTI-VIRUS SOFTWARE SUCH AS F-PROT, ETRUST .