本文共 623 字，大约阅读时间需要 2 分钟。

0x00 Crypto之boom

下载下来是个exe文件，拖到cmd运行（切记一定不要双击，用cmd打开）

0x01 Reverse之signal

用IDA逆向后，可得关键算法：

# -*- coding: UTF-8 -*-code = [10,4,16,8,3,5,1,4,32,8,5,3,1,3,2,8,11,1,12,8,4,4,1,5,3,8,3,33,1,11,8,11,1,4,9,8,3,32,1,2,81,8,4,36,1,12,8,11,1,5,2,8,2,37,1,2,54,8,4,65,1,2,32,8,5,1,1,5,3,8,2,37,1,4,9,8,3,32,1,2,65,8,12,1,7,34,7,63,7,52,7,50,7,114,7,51,7,24,7,167,7,49,7,241,7,40,7,132,7,193,7,30,7,122]result = [34,63,52,50,114,51,24,167,49,241,40,132,193,30,122]flag = []def encode(x,code):	i=0	achar=0	while(i

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