[[HGAME 2022 week4]WOW]

Problem: [HGAME 2022 week4]WOW

思路

代码下面自解密了

运行到前面的比对处把密文patch掉就可以

import ida_bytes
import idc
patch_data = [
    0x29, 0x20, 0x98, 0x62, 0xFC, 0x46, 0x79, 0x56, 0xA5, 0x90,
    0x4A, 0xF6, 0xA3, 0x70, 0xD9, 0x1B, 0x34, 0x02, 0x1B, 0x50,
    0x65, 0x86, 0x33, 0x35, 0xBB, 0xA5, 0x9F, 0x96, 0xBB, 0x2B,
    0xE3, 0x2A
]

def patch_array():
    # 目标地址（修改为你的地址）
    start_addr = 0x0093FBC8

    # 验证地址有效性
    if not ida_bytes.is_mapped(start_addr):
        print(f"[-] 错误地址 0x{start_addr:X}")
        return
    
    # 遍历地址进行patch
    for idx, byte in enumerate(patch_data):
        current_addr = start_addr + idx
        ida_bytes.patch_byte(current_addr, byte)
        print(f"[*] 已修改地址 0x{current_addr:X} 为 0x{byte:02X}")
    
    print(f"[+] 已完成 {len(patch_data)} 字节的写入")
    ida_bytes.refresh_idaview_anyway()

if __name__ == '__main__':
    patch_array()
​

EXP

• 具体攻击代码

总结

• 对该题的考点总结