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Monthly Archive for February, 2023

In my last post I described AdminSDHolder, an object in Active Directory that attackers can change to keep their access. One change, in one place, and very few organisations monitor it. At the same time, the same organisations often pay a lot to monitor things that rarely matter. Every firewall flow, every successful logon to […]

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Let´s talk about one of the more obscure objects in Active Directory: AdminSDHolder. AdminSDHolder is a container in the System part of the domain. Its permissions work as a template. Every hour or so a process on the domain controller holding the PDC emulator role, called SDProp, goes through all members of the protected groups, […]

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