Cracker Handbook 1 0 part 75 docx
Cracker Handbook 1.0 part 75 docx
... 64A 100 000 000 mov eax, dword ptr fs: [00 000 000 ]
:4 202 CA 01 50 push eax
:4 202 CA02 64892 500 000 000 mov dword ptr fs: [00 000 000 ], esp
:4 202 CA09 83EC 10 sub esp, 00 000 01 0
Không hiểu đoạn mã của bạn ở ... fs: [00 000 000 ], ecx
:4 202 C9E5 5F pop edi
:4 202 C9E6 5E pop esi
:4 202 C9E7 5B pop ebx
:4 202 C9E8 8BE5 mov esp, ebp
:4 202 C9EA 5D pop ebp
:4 202 C9EB C 2...
Cracker Handbook 1.0 part 6 docx
... operation now, which increases EAX by 1 the O-Flag would be set, because
the operation changed the highest bit of EAX (which is not set in 7FFFFFFF, but
set in 800 000 00 - use calc.exe to convert hexadecimal ... famous cracker team in
Vietnam. Founded in March 200 4 with many lalent cracker such as hacnho,
Computer Angel, Zombie, RCA, Moonbaby, benina
Their homepage: www.reaonlin...
Cracker Handbook 1.0 part 7 docx
... phép cộng số bù 1 và 1
> Bù 1 111 1 11 11 111 1 10 10
+ 1
> Bù 2 11 11 111 1 11 11 1 01 1
Vì sao bù 2 là biểu diễn số âm? Ta lấy con số gốc + bù 2 của nó sẽ cho kết quả là 0
vì msb sẽ bị ... bit xác định dấu (0: Dương). Giá trị
này lưu trên máy tính dạng số bù 2 (với số âm).
* Số bù 1: Là kết quả phép đảo bits.
00 00 000 0 00 00 01 0 1
> Bù 1 111 1...
Cracker Handbook 1.0 part 8 docx
... đổi giữa hệ 2 và 16 .
Ví dụ: chuyển 5D6Ch sang hệ cơ số 2.
5h = 10 1b
Dh = 11 01 b
6h = 11 0b
Ch = 11 00 b
Nên 5D6Ch = 10 111 01 1 1 01 1 00 b
Để chuyển từ hệ cơ số 2 sang hệ cơ số 16 ta làm ngược lại. ... là khá cần thiết:
1. Chuyển đổi từ hệ cơ số 2 ( binary ), hệ cơ số 16 ( hexademical ) sang hệ cơ số
10 ( demical ).
Ví dụ:
10 1 10 b = 1* 2^4 + 0* 2^3 + 1* 2^2...
Cracker Handbook 1.0 part 24 docx
... 204 5 400 0 MOV ECX,RSRemind .00 404 5 20
00 402 217 . 50 PUSH EAX
00 402 218 . E8 95 01 0 00 0 CALL RSRemind .00 402 3B2
00 402 21D . B9 204 5 400 0 MOV ECX,RSRemind .00 404 5 20
00 402 222 . E8 05 0 300 00 CALL RSRemind .00 402 52C<<<<<<<< ...
00 402 204 > \ 50 PUSH EAX
00 402 205 . B9 204 5 400 0 MOV ECX,RSRemind .00 404 5 20
00 402 20A . E8 87 01...
Cracker Handbook 1.0 part 36 docx
...
:00 403 01 5 833D1877 400 000 cmp dword ptr [00 407 718 ], 00 000 000
*. Possible StringData Ref from Data Obj ->"Go"
:00 403 01C B 818 7C 400 0 mov eax, 00 407 C18
:00 403 0 21 7 505 jne 00 403 028 ... USER32. GetDlgItemTextA, Ord : 00 EDh
|
:00 403 000 FFF15D493 400 0 Call dword ptr [00 409 3D4]
:00 403 006 8D4DCC lea ecx, dword ptr [ebp-34]
:00 403 009 5...
Cracker Handbook 1.0 part 42 docx
... Debug on each line that we assemble, something like this
appears:
1CB0: 01 0 2 MOV AX,BX
Where the first number, 1CB0, corresponds to the memory segment being used,
the second one refers ... Assembler Version 2 .0 Copyright © 19 88, 19 90 Borland International
Assembling file: exam2.asm
Error messages: None
Warning messages: None
Passes: 1
Remaining memory: 471k
fourth s...
Cracker Handbook 1.0 part 43 docx
... INSTRUCTION
Example:
MOV AX ,00 06h
MOV BX,AX
MOV AX,4C00h
INT 21H
This small program moves the value of 00 06H to the AX register, then it
moves the content of AX (00 06h) to the BX register, ... AX (00 06h) to the BX register, and lastly it moves the
4C00h value to the AX register to end the execution with the 4C option of
the 21h interruption.
MOVS (MOVSB) (MOVSW) Instru...
Cracker Handbook 1.0 part 60 docx
...
5.4 .1 Int 21H (DOS interruption) Multiple calls to DOS functions.
5.4.2 Int 10 H (BIOS interruption) Video input/output.
5.4.3 Int 16 H (BIOS interruption) Keyboard input/output.
5.4.4 Int 17 H ... the video.
02 H Exhibits output
09 H Chain Impression (video)
40H Writing in device/file
Functions to read information from the keyboard.
01 H Input from the keyboard
0AH Input...
Cracker Handbook 1.0 part 61 docx
... value of 1 which is the preassigned value to the
video by the operative system MS-DOS.
01 H FUNCTION
Use:
To read a keyboard character and to display it.
Call registers
AH = 01 H
... have been stored the speaker sounds and
FCB Method
0FH Open file
14 H Sequential reading
15 H Sequential writing
16 H Create file
21H Random reading
22H Random writing
Handles...