jinzi0113@163.com's SimpleGame

Author:
jinzi0113@163.com

Language:
C/C++

Upload:
2024-01-25 08:51

Download

Platform:
Windows

Difficulty:
1.3

Quality:
4.0

Arch:
x86-64

Downloads:
17

Size:
9.00 KB

Writeups:
3

Comments:
6

Description

Modify the program to ensure victory for the defending side.

Comments (6)
Writeups (3)

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saway84122 on 2024-02-06 16:39: Just patch these asm 0008100A jne simplegame.81036 -- jmp 0x00081049 00081080 mov dword ptr ds:[833A8],14 -- mov dword ptr ds:[833A8],01

Kerew on 2024-02-14 06:55: It's not dif 1, maybe its 2-3

kestas69 on 2024-02-25 13:30: could just patch a jump, but it would be better for learning purposes to decompile and understand how the code works, i.e how the attack/health works and then change the attack or health value to win :)

hoangakm on 2024-03-20 14:35: i dont understand.text:004010D1 mov dword_4033A4, ecx .text:004010D7 mov dword_403394, eax do for and thanks for solution

abc00012345 on 2024-04-01 18:58: nice challenge. did it as my second re project

potichek on 2024-04-06 12:28: To remove the debugging message, you must replace the test eax, eax instruction at address 00E01008 with a jump to the real game code, bypassing the debugger check (jmp 00E01054) To change the program so that you always win, you must replace the jnle 0x00E010CD instruction at address 00E010E2 with jmp 00E010F4, thereby without checking anything, go straight to the good boy

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Solution by cnathansmith on 2024-01-31 05:45:
Walk-through with patched game binary

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Solution by daymon on 2024-02-13 22:27:
Attached zip includes: Patched game, Walkthrough of multiple solutions, and screenshots to help visualize functions.

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Solution by kestas69 on 2024-02-25 14:00:
Walk through, solved by changing damage/health values, contains patched binary.

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crackmes.one

crackmes.one

jinzi0113@163.com's SimpleGame