运行分析

• 需破解Name和Code

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PE分析

• ASM汇编程序，32位，无壳

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静态分析&动态调试

• ida搜索找到关键字符串

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• ida动态调试，逻辑如上

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算法分析

Name = 'conceal'

str_1 = 'SU7CSJKF09NCSDO9SDF09SDRLVK7809S4NF'
str_2 = 'A1LSK2DJF4HGP3QWO5EIR6UTYZ8MXN7CBV9'

Serial = ''

for i in range(len(Name)):
    v10 = -1
    if ord(Name[i]) >= 90:
        Name_i = ord(Name[i]) - 32
    else:
        Name_i = ord(Name[i])

    v10 = str_2.index(chr(Name_i))
    Serial += str_1[v10]

print(Name + '的Serial为：\n' + Serial)

• 验证成功