http://reversing.kr/challenge.php

http://reversing.kr/download.php?n=6

1.先静态找弹窗下断点,再动态,否则动态可能找不到

2.看对比和偏移判断文件大小,然后判断哪个是flag文件,数据窗口跟随+计算offset shift选中复制

提取出一个90000字节的图片文件

3.显示图片内容可以使用python

import tkinter
file = open("test.bmp", 'rb')
lists = file.readline()
height = 150
weight = 200
top = tkinter.Tk()
c = tkinter.Canvas(top, bg='white')
for y in range(height):
    for x in range(weight):
        p = (y*weight + x)*3
        if(lists[p]==0):
            c.create_line((x, y, x+1, y+1))
c.pack()
top.mainloop()