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Last change
on this file since 10 was 8, checked in by kiewitz, 23 years ago |
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Added AiR-BOOT Images and support for other languages.
Note: This comment was created after rebuilding the repo. [2011-07]
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File size:
2.6 KB
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| 1 |
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| 2 | ; Bad Test-Virus (c) Martin Kiewitz - For test of AiR-BOOT ANTIVIR
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| 3 |
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| 4 | JUMPS
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| 5 |
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| 6 | ; First all Equs
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| 7 |
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| 8 | ExecBaseSeg equ 00000h
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| 9 | ExecBasePtr equ 07C00h
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| 10 | BootBaseSeg equ 8000h
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| 11 | BootBasePtr equ 0h ; We put our MBR to this location
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| 12 | BootBaseExec equ BootBasePtr+offset MBR_RealStart
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| 13 | StackSeg equ 7000h
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| 14 |
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| 15 | .386p
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| 16 | model large, basic
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| 17 |
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| 18 | code_seg segment public use16
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| 19 | assume cs:code_seg, ds:nothing, es:nothing, ss:nothing
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| 20 | org 0000h
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| 21 |
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| 22 |
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| 23 | ;---------------------------------------------------------------------------
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| 24 | air_boot: cld
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| 25 | mov ax, ExecBaseSeg
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| 26 | mov ds, ax
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| 27 | mov si, ExecBasePtr
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| 28 | mov ax, BootBaseSeg
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| 29 | mov es, ax
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| 30 | mov di, BootBasePtr
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| 31 | mov cx, 256
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| 32 | rep movsw
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| 33 | db 0EAh
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| 34 | dw BootBaseExec
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| 35 | dw BootBaseSeg
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| 36 | ; jmp far ptr BootBaseSeg:BootBaseExec
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| 37 |
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| 38 | ; In: SI - Pointer to begin of string (EOS is 0)
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| 39 | ; Destroyed: SI
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| 40 | MBR_Teletype Proc Near Uses ax bx cx
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| 41 | mov ah, 0Eh
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| 42 | mov bx, 7
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| 43 | MBR_Teletype_Loop:
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| 44 | lodsb
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| 45 | or al, al
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| 46 | jz MBR_Teletype_End
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| 47 | int 10h
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| 48 | jmp MBR_Teletype_Loop
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| 49 | MBR_Teletype_End:
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| 50 | ret
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| 51 | MBR_Teletype EndP
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| 52 |
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| 53 | MBR_Virus_Message db 'I''m a little MBR non-stealth virus...Come and get me', 13, 10, 0
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| 54 | ;---------------------------------------------------------------------------
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| 55 | MBR_RealStart: mov ax, StackSeg
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| 56 | mov ss, ax
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| 57 | mov sp, 7FFFh
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| 58 | mov ax, es
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| 59 | mov ds, ax ; Set DS to new segment
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| 60 | ; Lade den fehlenden Part von der Festplatte
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| 61 |
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| 62 | mov si, offset MBR_Virus_Message
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| 63 | call MBR_Teletype
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| 64 |
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| 65 | mov ax, 8600h
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| 66 | xor cx, 100
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| 67 | xor dx, dx
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| 68 | int 15h ; Wait to display message
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| 69 |
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| 70 | mov ax, ExecBaseSeg
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| 71 | mov es, ax
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| 72 | mov bx, ExecBasePtr
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| 73 | mov dx, 0080h ; Erste HD, Sektor 50
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| 74 | mov cx, 0032h
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| 75 | mov ax, 0201h ; 1 Sektor lesen
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| 76 | int 13h
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| 77 |
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| 78 | db 0EAh
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| 79 | dw ExecBasePtr
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| 80 | dw ExecBaseSeg
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| 81 |
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| 82 | code_seg ends
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| 83 | end air_boot
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