攻防世界_misc_很普通的Disco

环境

很普通的Disco，音频波谱隐写

flag{W0W*funny}

wp

发现波形图放大之后，开头存在隐藏信息

二进制为，转ASCCI码，7位一组

110011011011001100001110011111110111010111011000010101110101010110011011101011101110110111011110011111101

python

string = '110011011011001100001110011111110111010111011000010101110101010110011011101011101110110111011110011111101'
flag = ''
for i in range(0, len(string), 7):
    bin_str = string[i: i + 7]
    flag += chr(int(bin_str, 2))
print(flag)