2 ways of Password Filter DLL to record the plaintext password
More detials:
https://3gstudent.github.io/Password-Filter-DLL%E5%9C%A8%E6%B8%97%E9%80%8F%E6%B5%8B%E8%AF%95%E4%B8%AD%E7%9A%84%E5%BA%94%E7%94%A8