Privilege Escalation Hash Type

[slawson]

I am trying to learn about privilege escalation and at one point the tutorials says to try a registry search for passwords.

i.e. 

reg query HKCU /f password /t REG_SZ /s

and 

reg query HKLM /f password /t REG_SZ /s

I have some passwords that returned that seem to be encrypted, what encryption do they use?