%%File: VIRS0487.TXT
%%Name/Aliases: JOKER-01, Joker-01 Joker 01, Joker 2
%%Platform: PC/MS-DOS
%%Type: Program., 
%%Disk Location: COM application., EXE application.
%%Features: Memory resident; TSR.
%%Damage: Corrupts a program or overlay files., Interferes with a 
running application.
%%Size: 29233 to 29372, 29233
%%See Also: 
%%Notes: A resident .EXE and .COM infector. It does not infect 
COMMAND.COM. The infection is at the end of the file. .EXE files are 
converted to .COM file signatures with a small loader inserted at the 
beginning of the file. The display may clear and the system may hang 
with this virus in memory. Random letters may appear on the screen. The 
string "JOKER-01" is in the file. The infection method is similar to 
VACSINA.  System hangs. Strange letters on screen. File lengths change. 
String "JOKER-01" found in file.   Scan file for string "JOKER-01"  
Delete files