Not bad, but moved to Other, because "Code library" is more for single blocks of code ready to be used.
Now, why does it bruteforce the passwords? such method is not very useful because it just might never hit the right one and dictionary file size must be humongous to get any kind of a believable result. Something a stealer should not be having/doing
Instead you could look into methods of obtaining the hash from SAM and reversing it with the salt obtained from SYSTEM files. But AFAIK they cannot be read while the system is running, might be some exploits though, but not sure.
You could also make it install as a service and run before the user logs in or before the system fully boots up.
Never the less, nice work
+1