This is a dangerous memory resident parasitic encrypted stealth virus. It hooks INT 21h and writes itself to the end of COM- and EXE-files that are accessed. It overwrites the source files with the following strings:
.model small
.code
org 256
s: push cs
pop ds
call t
db '-Ñ$'
t: pop dx
mov ah,9
int 33
mov ah,76
int 33
end s
begin
write('-Ç');
end.
It also contains the following internal text strings:
SW Error
SW DIE HARD 2
