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Active Directory

GetNPUsers.py

AS-REP roasting via Impacket.

adkerberos
getnpusers.py — terminal
$ GetNPUsers.py domain/ -usersfile users.txt -no-pass

What it does

GetNPUsers.py finds Active Directory accounts that don't require Kerberos pre-authentication and extracts their AS-REP hashes for offline cracking. It's a common first foothold in a domain.

Source

https://github.com/fortra/impacket

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