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This a feature that a Domain Administrator can set to any **Computer** inside the domain. Then, anytime a **user logins** onto the Computer, a **copy of the TGT** of that user is going to be **sent inside the TGS** provided by the DC **and saved in memory in LSASS**. So, if you have Administrator privileges on the machine, you will be able to **dump the tickets and impersonate the users** on any machine.
So if a domain admin logins inside a Computer with "Unconstrained Delegation" feature activated, and you have local admin privileges inside that machine, you will be able to dump the ticket and impersonate the Domain Admin anywhere (domain privesc).
You can **find Computer objects with this attribute** checking if the [userAccountControl](https://msdn.microsoft.com/en-us/library/ms680832\(v=vs.85\).aspx) attribute contains [ADS\_UF\_TRUSTED\_FOR\_DELEGATION](https://msdn.microsoft.com/en-us/library/aa772300\(v=vs.85\).aspx). You can do this with an LDAP filter of ‘(userAccountControl:1.2.840.113556.1.4.803:=524288)’, which is what powerview does:
[**More information about Unconstrained delegation in ired.team.**](https://ired.team/offensive-security-experiments/active-directory-kerberos-abuse/domain-compromise-via-unrestricted-kerberos-delegation)
If an attacker is able to **compromise a computer allowed for "Unconstrained Delegation"**, he could **trick** a **Print server** to **automatically login** against it **saving a TGT** in the memory of the server.\
[**More info about this attack in ired.team.**](https://ired.team/offensive-security-experiments/active-directory-kerberos-abuse/domain-compromise-via-dc-print-server-and-kerberos-delegation)
* Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
* **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/hacktricks_live)**.**
* **Share your hacking tricks by submitting PRs to the [hacktricks repo](https://github.com/carlospolop/hacktricks) and [hacktricks-cloud repo](https://github.com/carlospolop/hacktricks-cloud)**.
